The TOAD system is a suite of car diagnostic tools and tuning software. Loaded with all the same functions used by dealerships and constantly updated by expert engineers, so youll always be supported. The included manuals contain thousands of pages of fault codes, patches, PCB layouts, and step-by-step instructions on how to fix any code. Structured with pictures, schematics, and easy to follow directions any novice can understand.
For those who are more advanced, the manuals also have comprehensive sections that go in depth covering every possible aspect, no matter how complex. Save hundreds of dollars by doing the diagnostics yourself and use the supplied manuals to help walk you through the process of fixing the problem. Never hesitate to contact the customer support team with any question about your repairs or ECU chiptuning problems. Last Updated on Tue, 05 Jun 2018 Reconnect connector A21 to air bag sensor assembly. Connect negative battery cable.
Wait at least 2 seconds. Turn ignition switch to ON position.
Description: - Cable length: 144 cm / 56.69 inches - Material type: Plastic and mental. Features: - Support TIS OEM diagnostic software for Toyota - Rapid. OBD Products for PC, Windows, Android, and iOS. OBDSoftware.net is your one-stop site for OBD diagnostic equipment. We are pleased to offer the most advanced OBD-II scan tools and the most user-friendly software on the market for monitoring and diagnosing problems in modern vehicles.
Wait at least 20 seconds. See CLEARING CODES under DIAGNOSTICS. Turn ignition switch to LOCK position. Wait at least 20 seconds.
Turn ignition switch to ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES under DIAGNOSTICS. If DTC 43-B0110 is not displayed, go to next step. If DTC 43-B0110 is displayed, replace air bag sensor assembly.
Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect right-side air bag squib connector.
Connect negative battery cable. Wait at least 2 seconds.
Turn ignition switch to ON position. Wait at least 20 seconds. See CLEARING CODES under DIAGNOSTICS. Turn ignition switch to LOCK position.
Wait at least 20 seconds. Turn ignition switch to ON position.
Wait at least 20 seconds. Last Updated on Fri, 11 Jan 2019 17 comments If a DTC is displayed during the DTC check, check the circuit indicated by the DTC.
For details of each code, refer to the See page in the DTC chart. Control Module CAN communication system CAN communication system ( to and acceleration sensor) In some cases, the intelligent tester cannot be used when the remains on. CAN communication system CAN communication system (Skid control ECU to ECM) CAN communication system (Skid control ECU to yaw rate and acceleration sensor) CAN communication system (Skid control ECU to steering angle sensor) In some cases, the intelligent tester cannot be used when the VSC warning light remains on.
The speed sensor detects wheel speed and transmits the appropriate signals to the These signals are used for control of the ABS system. Each of the front and rear rotors has 48 serrations. When the rotors rotate, the magnetic field generated by the permanent magnet in the.
Last Updated on Sat, 14 Apr 2018 6 comments Check (Make a note of and then clear) Diagnostic Trouble Code Check Diagnostic Trouble Code Display Same diagnostic trouble code is displayed The problem is still occurring in a place other than in the diagnostic circuit (The diagnostic trouble code displayed first is either for a past problem or it is a secondary problem) Taking into account the above points, a flow chart showing how to proceed with troubleshooting using the diagnostic trouble code check is shown below. ThiS'flow chart shows how to utilize the diagnostic trouble code check effectively, then by carefully checking the results, indicates how to proceed either to diagnostic trouble code troubleshooting or to troubleshooting of problem symptoms.
Diagnostic trouble code check Making a note of and clearing of the diagnostic trouble codes displayed. Connect the to the DLC3. Turn the ignition switch ON and push the ON. Select the ACTIVE TEST mode on the TOYOTA hand-held tester. Check ON-OFF function of the VSC buzzer with the TOYOTA hand-held tester.
Connecting terminals causes the ECU to display the DTC by blinking the, VSC TRAC warning light and BRAKE warning light. Check voltage between of the DLC3. PREPARATION Fig. 110 Checking Voltage Between Terminals Tc & CG Of DLC3 Fig. 110 Checking Voltage Between Terminals Tc & CG Of DLC3 Measure voltage between and CG of DLC3. With ignition switch OFF, check for open and short circuit in harness and connector between SKID CONTROL ECU AND DLC3, DLC3 AND BODY GROUND.
Transition to the sensor check mode can be performed by connecting terminals Ts and CG of the DLC3 and turning the ignition switch from OFF to ON. Check voltage. The circuit is used to send TRAC and VSC control information from the skid control ECU to the ECM, and engine control information from the ECM to the skid control ECU via the CAN communication system. This DTC is output when communication between the translate ECU and the skid control ECU is cut off. ENG+, ENG- circuit (CAN communication system) Fig.
29 Vehicle CAN Communication Malfunction Wiring Diagram Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 29 Vehicle CAN Communication Malfunction Wiring Diagram Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Connect the intelligent tester to the DLC3.
Enter the following menus DIAGNOSIS ENHANCED OBD II DTC INFO CLEAR CODES. DLC3 CAN VIM Fig. 29 Connecting Cable Of Intelligent Tester To DLC3 DLC3 CAN VIM Fig. 29 Connecting Cable Of Intelligent Tester To DLC3 3. CLEAR DTC (Without using the Intelligent tester) Intelligent tester only NOTE All the stored DTCs and freeze frame data are erased if 1) the ECM is changed from normal mode to check mode or vice versa or 2) the ignition switch is turned from ON to ACC or OFF while in check mode. Before changing modes, always check and make a note of any DTCs and freeze frame data. Last Updated on Tue, 18 Dec 2018 (a) Connect the OBD II scan tool or intelligent tester together with the CAN VIM (controller area network vehicle interface module) to the DLC3.
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(b) Turn the ignition switch on (IG) and turn the OBD II scan tool or the intelligent tester ON. (c) When you use intelligent tester Select the item DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. (d) Read the DTCs using the OBD II scan tool or the intelligent tester. P0746 and other DTCs If any other codes besides P0746 are output, perform the troubleshooting for those DTCs first.
In April 1985, the California Air Resources Board (CARB) approved On-Board Diagnostic system regulations, referred to as OBD. These regulations, which apply to almost all 1988 and newer cars and light marketed in the State of California, require that the engine control module (ECM) monitor critical emission related components for proper operation and illuminate a malfunction indicator lamp (MIL) on the instrument panel when a malfunction is detected.
The OBD system also provides for a system of Diagnostic Trouble Codes (DTC) and fault isolation logic charts in the, to assist technicians in determining the likely cause of engine control and emissions system malfunctions. The basic objectives of this regulation are twofold OBD self diagnosis applies to systems which are considered to be most likely to cause a significant increase in exhaust emissions if a malfunction occurs. Most notably, this includes. Last Updated on Mon, 03 Sep 2018 Diagnostic Trouble Codes or DTCs are generated by the on-board diagnostic system and stored in the ECM memory.
They indicate the circuit in which a fault has been detected. DTC information remains stored in the ECM regardless of whether a continuous (hard) fault or intermittent fault caused the code to set. Toyota products with OBD will continue to store a DTC in the ECM long term memory until the code is cleared by removing power from the ECM BATT terminal.
In most cases, the EFI fuse powers this keep alive memory. Last Updated on Thu, 11 Feb 2016 Hybrid Vehicle (HV) control Electronic Control Unit (ECU) is used for controlling the hybrid system which uses the gasoline engine along with the AC electric motor for vehicle operation. Hybrid vehicle control ECU is referred to as HV ECU. The HV ECU is located below carpet on floor panel, just below passenger's side of instrument panel.
HV ECU receives input information from various sensors and electronic control units and determines the torque and output power. HV ECU delivers the demand torque and target RPM to ECM.
The ECM uses this input information for controlling throttle opening, fuel injection system, ignition timing and (. The ECM delivers the actual engine RPM to the HV ECU.
When vehicle is stopped, the HV ECU may deliver a signal to the ECM to indicate that vehicle is stopped. ECM uses this for reducing fuel consumption. Wed, 16 Sep 2015 (a) CAN communication lines are used to receive information from the skid control ECU) and the ECM, and to transmit warnings to the combination meter. When there are any problems in the CAN communication lines, DTCs of the CAN communication line are output.
(b) Perform troubleshooting of the communication line problems when the CAN communication DTCs are output. Be sure to start troubleshooting on the electronic power steering system after confirming that the CAN communication system is normal. (c) Since the CAN communication line has its own length and route, it cannot be repaired temporarily with the bypass wire, etc. The diagnostic system in the TERCEL fulfills various functions. The first function is the Diagnostic Trouble Code Check in which a malfunction in the signal circuits to the ECU is stored in code in the ECU memory at the time of occurrence, to be output by the technician during troubleshooting. Another function is the Input Signal Check which checks if the signals from various switches are sent to the ECU correctly. Diagnostic Trouble Code Check In diagnostic trouble code check, it is very important to determine whether the problem indicated by the diagnostic trouble code is still occurring or occurred in the past but returned to normal at present.
In addition, it must be checked in the problem symptom check whether the malfunction indicated by the diagnostic trouble code is directly related to the problem symptom or not. For this reason, the diagnostic trouble codes should be checked before and after the to determine the current conditions, as shown in the table. Last Updated on Sun, 12 Nov 2017 0 The diagnostic system in has various functions.
The first function is the (DTC) Check, in which a malfunction in the signal circuits to the ECU is stored in code form in the ECU memory. Another function is the Input Signal Check, which checks if the signals from various switches are sent to the ECU correctly. By using these check functions, it is possible to quickly narrow down potential problem areas and troubleshooting can be performed effectively. The diagnostic functions are incorporated in the following systems in the COROLLA.
In the DTC check, it is very important to determine whether the problem indicated by the DTC is still occurring or has occurred in the past but returned to normal at present. In addition during the problem symptom check, it a check must be made on whether the malfunction indicated by the DTC is directly related to the problem symptom or not. For this reason, the DTC should be checked before and after to.
Last Updated on Mon, 28 May 2018 Calculate the total fuel trim values to check the characteristic deviation of the mass air flow meter. (a) Connect an intelligent tester to the DLC3.
Turn the ignition switch ON. Turn the tester ON. Select the following menu items DIAGNOSIS ENHANCED OBD II DATA LIST PRIMARY SHORT FT 1 and LONG FT 1. Read the values displayed on the tester. Add together the SHORT FT 1 and LONG FT 1 values to obtain the total FUEL TRIM.
PERFORM ACTIVE TEST USING INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Turn the ignition switch to ON. Turn the tester ON. Select the following menu items DIAGNOSIS ENHANCED OBD II ACTIVE TEST EVAP VSV. Disconnect the hose (connected to the canister) from the purge VSV. Start the engine.
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE OCV) (a) Connect the intelligent tester to the DLC3. (d) Select the following menu items DIAGNOSIS ENHANCED OBD II ACTIVE TEST VVT CTRL B1. READ VALUE OF INTELLIGENT TESTER (ENGINE SPD) (a) Connect an. Last Updated on Thu, 12 Oct 2017 1 comment (a) Connect the intelligent tester to the DLC3. (c) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. (d) Read DTCs.
P0171 or P0172 and other DTCs If any DTCs other than P0171 or P0172 are output, troubleshoot those DTCs first. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (A F CONTROL) Connect the intelligent tester to the DLC3. Start the engine and turn the tester ON. Warm up the engine at an engine speed of 2,500 rpm for approximately 90 seconds. On the tester, select the following menu items DIAGNOSIS ENHANCED OBD II ACTIVE TEST A F CONTROL.
To display the graph, select the following menu items on the tester DIAGNOSIS ENHANCED OBD II ACTIVE TEST A F CONTROL USER DATA AFS B1S1 and O2S B1S2 then press the YES button and then the ENTER button followed by the F4 button. READ VALUE USING INTELLIGENT TESTER (MAF) (a) Connect the intelligent tester to the DLC3. (c) Select the following menu items DIAGNOSIS ENHANCED OBD II DATA LIST PRIMARY MAF and COOLANT. The OBD-II data line is a bi-directional communication link which is capable of transmitting and receiving data. This feature allows the Diagnostic Tester to operate system actuators and send commands to the ECM in addition to displaying system data. The high speed OBD-II data stream typically consists of 50 to 75 data words representing virtually all sensor inputs, actuator outputs, several calculated parameters, many fuel feedback related parameters, and cylinder misfire data.
The data is transmitted at a rate of 10.4 Kilo baud, giving the Diagnostic Tester a display refresh rate capability of approximately once every 200 milliseconds. Data is accessed from DLC 3, terminal 2. It is triggered by a communication signal generated by the Diagnostic Tester when any OBD-II function has been selected.
On OBD-Il vehicles, the scan tool reads DTCs directly from the serial data stream, therefore, codes are displayed almost instantly. Codes can only be retrieved and displayed using the. (a) Check for the output DTC relating to the CAN communication system. HINT The ECU of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, be sure to check that there is no trouble in the CAN communication system.
CAN communication system DTC not output CAN communication system DTC output CAN COMMUNICATION SYSTEM CAN COMMUNICATION SYSTEM DTC CHECK. When 2 or more DTCs are detected, perform circuit inspections one by one until the problem is identified. Last Updated on Mon, 28 May 2018 Calculate the total fuel trim values to check the characteristic deviation of the mass air flow meter. (a) Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position. Turn the tester on. Select the following menu items DIAGNOSIS ENHANCED OBD II DATA LIST PRIMARY SHORT FT 1 and LONG FT 1.
Read the values displayed on the tester. Add together the SHORT FT 1 and LONG FT 1 values to obtain the total FUEL TRIM.
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE OCV) (a) Connect the intelligent tester to the DLC3. (d) Select the following menu items DIAGNOSIS ENHANCED OBD II ACTIVE TEST VVT CTRL B1. (a) Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position. Turn the tester on. Clear the DTCs (See page ES-38). Switch the ECM from normal mode to check mode using the tester (See page ES-41). Start the engine to idle for a minute. OK Read the DTCs.
Diagnostic Trouble Codes can be displayed using the Diagnostic Tester or by grounding the TE1 circuit and counting the Malfunction Indicator Lamp (MIL) flashes. The scan tool reads codes by counting the low voltage pulses on the W terminal of the Diagnostic Link Connector (DLC). Therefore, code retrieval is a relatively slow process, especially when multiple codes are stored.
Diagnostic Trouble Codes can be displayed using the Diagnostic Tester or by grounding the TE1 circuit and counting the Malfunction Indicator Lamp (MIL) flashes. The scan tool reads codes by counting the low voltage pulses on the W terminal of the Diagnostic Link Connector (DLC). Therefore, code retrieval is a relatively slow process, especially when multiple codes are stored. Last Updated on Tue, 05 Jun 2018 Reconnect connector A19 to air bag sensor assembly.
Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to ON position. Wait at least 20 seconds. See CLEARING CODES under DIAGNOSTICS. Turn ignition switch to LOCK position. Wait at least 20 seconds.
Turn ignition switch to ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES under DIAGNOSTICS. If DTC 47-B0115 is not displayed, go to next step.
If DTC 47-B0115 is displayed, replace air bag sensor assembly. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect left-side air bag squib connector. Connect negative battery cable. Wait at least 2 seconds.
Turn ignition switch to ON position. Wait at least 20 seconds. See CLEARING CODES under DIAGNOSTICS. Turn ignition switch to LOCK position. Wait at least 20 seconds.
Turn ignition switch to ON position. Wait at least 20 seconds. Last Updated on Thu, 12 Oct 2017 (a) Connect the intelligent tester to the DLC3. (c) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. (d) Read DTCs. P0420 and other DTCs If any DTCs other than P0420 are output, troubleshoot those DTCs first.
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (A F CONTROL) Connect the intelligent tester to the DLC3. Start the engine and turn the tester ON. Warm up the engine at an engine speed of 2,500 rpm for approximately 90 seconds. On the tester, select the following menu items DIAGNOSIS ENHANCED OBD II ACTIVE TEST A F CONTROL. To display the graph, select the following menu items on the tester DIAGNOSIS ENHANCED OBD II ACTIVE TEST A F CONTROL USER DATA AFS B1 S1 and O2S B1 S2 then press the YES button and then the ENTER button followed by the F4 button. Sat, 29 Apr 2017 Under the provisions of OBD-II regulations, emissions related diagnostic and service information will be readily available to the service industry, from the vehicle manufacturer.
This information includes procedures and specifications necessary to diagnose the. Although enhanced diagnostics may be available using special equipment and procedures, at a minimum, repair procedures will be written using the generic scan tool and other commonly available test equipment like multimeters and oscilloscopes. In an effort to simplify diagnostics, OBD-II requires that all manufacturers standardize DTCs on OBD-II equipped vehicles. Eventually, all emissions related service information will be standardized in format and available through an electronic media.
Last Updated on Mon, 21 May 2018 As a result of these technical breakthroughs and because existing I M programs have proven to be less effective than desired in detecting critical emissions control system defects which occur during normal road load operation, a more comprehensive OBD system was developed under the direction of CARB. OBD-II, which is implemented over the 1994 through 1996 model years, adds catalyst efficiency monitoring, engine misfire detection, purge system monitoring, secondary air system monitoring, and flow rate monitoring. Additionally, a serial data stream consisting of twenty basic data parameters and diagnostic trouble codes is a required part of the diagnostic system. In addition to the basic required OBD-II has an enhanced data stream which consists of approximately 60 additional data words. Access to all OBD-II data is made by connecting a generic scan tool to a standardized (DLC) located under the left side of the instrument.
(a) Connect an intelligent tester to the DLC3. (d) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. (e) Read DTCs. P2A00 and or P2A03 and other DTCs If any DTCs other than P2A00 or P2A03 are output, troubleshoot those DTCs first. (a) Connect an intelligent tester to the DLC3.
(c) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. (d) Read DTCs. (a) Connect an intelligent tester to the DLC3. (c) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES.
(d) Read DTCs. Wed, 12 Jul 2017 Although OBD supplies valuable information about a number of critical emissions related systems and components, there are several important items which were not incorporated into the OBD standard due to technical limitations at the time that the system was phased into production (during the 1988 model year.) Since the introduction of OBD, several technical breakthroughs have occurred. For example, the technology to monitor engine misfire and catalyst efficiency has been developed and implemented on production vehicles. Thu, 13 Aug 2015 When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are erased. Before changing modes, always check and make a note of any DTCs and freeze frame data. HINT DTCs which are stored in the ECM can be displayed on the intelligent tester. The intelligent tester can display current and pending DTCs.
Some DTCs are not set if the ECM does not detect the same malfunction again during a second consecutive driving cycle. However, such malfunctions, detected on only one occasion, are stored as pending DTCs. CHECK DTC (Using intelligent tester) (a) Connect the intelligent tester to the DLC3.
(d) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES or PENDING CODES. CLEAR DTC (Using intelligent tester) (a) Connect the intelligent tester to the DLC3.
(d) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CLEAR CODES. CLEAR DTC (Without using intelligent tester).
DTC CHECK (NORMAL MODE) NOTICE When the diagnostic system is switched from the normal mode to the check mode, all the DTCs and freeze frame data recorded in the normal mode will be erased. So before switching modes, always check the DTCs and freeze frame data, and note them down. (a) Checking DTCs using the OBD II scan tool or Connect the OBD II scan tool or hand-held tester to DLC3.
Turn the ignition switch to the ON position. Use the OBD II scan tool or hand-held tester to check the DTCs and freeze frame data and note them down (For operating instructions, see the OBD II scan tool's instruction book). See page 05-372 to confirm the details of the DTCs.
When simulating symptoms with an OBD II scan tool (excluding hand-held tester) to check the DTCs, use the normal mode. For codes on the DTCs chart subject to 2, turn the ignition switch off after the symptom is simulated once. Then repeat the simulation process again. When the problem has been. Last Updated on Thu, 12 Oct 2017 Read freeze frame data using the intelligent tester.
Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred. READ OUTPUT DTC (a) Connect the intelligent tester to the DLC3. (b) Turn the ignition switch ON and turn the intelligent tester ON. (c) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. (d) Read DTCs.
Result READ VALUE USING INTELLIGENT TESTER (INTAKE AIR TEMPERATURE) (a) Connect the intelligent tester to the DLC3. Last Updated on Mon, 11 May 2015 Connect the intelligent tester to the DLC3. Clear the DTCs by following the prompts on the tester screen. When clear the DTC of the, select the OCCUPANT DETECT on the intelligent tester. 53 Connecting Intelligent Tester To DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 53 Connecting Intelligent Tester To DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 54 Connecting Intelligent Tester To DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
54 Connecting Intelligent Tester To DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Using intelligent tester 1. Connect the intelligent tester to the DLC3. Select the SIGNAL CHECK, and proceed cheeking with the intelligent tester screen. HINT Intelligent tester only. Last Updated on Thu, 17 May 2018 The intelligent tester can be used at step 3, 4, 6, 7, 11, 14, and 17.
CHECK CAN COMMUNICATION SYSTEM (a) Check for output DTCs. HINT The ECU of this system is connected to the CAN communication system.
Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system. CAN COMMUNICATION SYSTEM DTC IS OUTPUT PROCEED TO CAN COMMUNICATION SYSTEM NO CAN COMMUNICATION SYSTEM DTC IS OUTPUT GO TO STEP 7 (a) Check for output DTCs. HINT The sends the signals of each warning light to the gateway ECU via CAN communication, and the gateway ECU sends the signals to the via the (BEAN). DTC CHECK AND CLEAR DTC CHECK (OTHER THAN CAN AND MULTIPLEX COMMUNICATION SYSTEM DTC). Read value of. PREPARATION a.
Connect the to the DLC3. Turn the ignition switch ON and push the TOYOTA hand-held tester main SW ON. CHECK Select the item A C SIG in the DATA LIST and read its value displayed on the. NG Replace relay.
OK Go to next step. Read value of TOYOTA hand-held tester. Connect the TOYOTA hand-held tester to the DLC3. Turn the ignition switch ON and push the TOYOTA hand-held tester main SW ON.
CHECK Select the item A C MAG CLUTCH in the DATA LIST and read its value displayed on the TOYOTA hand held tester. (a) Connect the to the DLC3.
(b) Turn the ignition switch ON and ON. (c) Select the active test mode on the TOYOTA (d) Please refer to the TOYOTA hand-held tester operator's manual for further details. E If you have no TOYOTA hand-held tester, connect the positive +) lead from the battery to terminal 4 of the connecter, and the negative (- lead to terminal 5. (h) Disconnect the TOYOTA hand-held tester from the DLC3. (i) Connect the TOYOTA hand-held tester to the DLC3. If you have no TOYOTA hand-held tester, connect the positive (+) lead from the battery to terminal 4 of the connecter, and the negative -) lead to terminal 5. (j) Measure the fuel pressure.
Fuel pressure If pressure is high, replace the fuel pressure regulator. If pressure is low, check the Fuel hoses and connections, Fuel pump, Fuel filter, and Fuel pressure regulator, (k) Disconnect the TOYOTA hand-held tester from the DLC3. (I) Start the. Connecting terminals causes the system to enter self-diagnostic mode.
If a malfunction is present, DTCs will be output. When a particular warning light remains blinking, a ground short in the wiring of of the DLC3 or an internal ground short in the relevant ECU is suspected. D20 DLC3 D20 DLC3 CHECK WIRE HARNESS (TC of DLC3 - ECM) REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - ECM) CHECK WIRE HARNESS (CG of DLC3 - BODY GROUND) REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - BODY GROUND) CHECK WIRE HARNESS (TC of DLC3 - BODY GROUND). (a) The ECU uses ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with and matches the ISO 15765-4 format. CAN bus line HIGH-level CAN bus line LOW-level CAN bus line HIGH-level CAN bus line LOW-level CAN bus line '( Intelligent Tester '( Intelligent Tester DLC3 DLC3 Intelligent Tester Intelligent Tester DLC3 DLC3 If the result is not as specified, the DLC3 may have a malfunction.
Repair or replace the harness and connector. Connect the cable of the intelligent tester to the CAN VIM, connect the CAN VIM to the DLC3, turn the ignition switch ON and attempt to use the tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester. If communication is normal when the tester is connected to another vehicle, inspect the DLC3 of the original vehicle. If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page. Check the ABS & TRACTION actuator with the intelligent tester ( & TRACTION actuator assembly operation using the active test function) If abnormal, check the hydraulic circuit for leakage 5. Check the ABS & TRACTION actuator assembly with the intelligent tester (Check ABS & TRACTION actuator assembly operation using the active test function) If abnormal, check the hydraulic circuit for leakage ABS check cannot be done DTC check cannot be done Can communication line H Can communication line L.
Last Updated on Sat, 08 Dec 2018 (1) The main wire is a wire harness between the two terminus circuits on the bus (communication line). This is the main bus in the CAN communication system. (1) The terminus circuit is a circuit which converts the communication current of the CAN communication into the bus voltage. It consists of a resistor and condenser.
Two terminus circuits are necessary on a bus. (1) The CAN J C is a junction designed for CAN communication. ECUs OR SENSORS WHICH COMMUNICATE VIA CAN COMMUNICATION SYSTEM 4. DIAGNOSTIC CODES FOR CAN COMMUNICATION SYSTEM (a) DTCs for the CAN communication system are as follows U0073, U0100, U0105, U0121, U0129 and B1499. (a) Trouble in the CAN bus (communication line) can be checked through the DLC3 (except when there is a wire break other than in the branch wire of the DLC3). Do not connect the tester directly to the. Be sure to use a service wire.
(b) DTCs regarding the CAN communication system can be checked using the intelligent tester via the. Connect the intelligent tester to the DLC3. The result appears on the tester after some delay because a time lag occurs in measurement with a intelligent tester. Check that the brake pedal acceleration value of the delta S sensor displayed on the intelligent tester changes, alternatively increasing the brake pedal stroke. 62 Checking That Brake Pedal Acceleration Value Of Delta S Sensor Displayed On Intelligent Tester Changes, Alternatively Increasing Brake Pedal Stroke Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 62 Checking That Brake Pedal Acceleration Value Of Delta S Sensor Displayed On Intelligent Tester Changes, Alternatively Increasing Brake Pedal Stroke Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Inspect engine idle speed (When using a intelligent tester). Connect a intelligent tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIM to the Date Link Connector 3 (DLC3). Please refer to the intelligent tester operator's manual for further details. Disconnect the intelligent tester and CAN VIM from the DLC3. 5 Connecting CAN VIM To Date Link Connector 3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 5 Connecting CAN VIM To Date Link Connector 3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Inspect engine idle speed (When not using a intelligent tester). Using the tachometer probe to terminal TAC of the DLC3.
Disconnect the tachometer from the DLC3. 6 Connecting Tachometer Probe To Terminal TAC Of DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 6 Connecting Tachometer Probe To Terminal TAC Of DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
The vehicle's ECM uses the ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with and matches the ISO 15765-4 format. Connect the cable of the intelligent tester to the DLC3, turn the ignition switch ON and attempt to use the intelligent tester. If the screen displays a communication error message, a problem exists in the vehicle side or the tester side.
If communication is normal when the tool is connected to another vehicle, inspect the DLC3 on the original vehicle. 20 Identifying 3 (DLC3) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 20 Identifying Data Link Connector 3 (DLC3) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. HIGH-level CAN bus line HIGH-level CAN bus line HIGH-level CAN bus line LOW-level CAN bus line LOW-level CAN bus. Reconnect connectors.
Reconnect negative battery cable. Turn ignition switch to ON position. See CLEARING CODES under DIAGNOSTICS. Turn ignition switch to LOCK position.
Wait at least 20 seconds. Turn ignition switch to ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES under DIAGNOSTICS.
If DTC 24-B1135 is displayed, go to next step. If DTC 24-B1135 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT. Last Updated on Fri, 05 Oct 2018 1 comment Start the inspection from step 1 when using the intelligent tester and start from step 2 when not using the intelligent tester. Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position and push the intelligent tester main switch ON. Select DATA LIST mode on the intelligent tester. Check that the steering wheel turning angle value of the displayed on the intelligent tester changes when turning the steering wheel. Check DTC (See DTC CHECK CLEAR ). When engine is idling, intake camshaft is set at the standard or hold position to stabilize the idle and obtain better fuel economy. During light engine load, intake camshaft valve timing remains retarded to provide stable engine operation. During medium engine load, intake camshaft valve timing is advanced to provide increased performance, fuel economy and improved emission control.
During heavy engine load in low-to-medium-speed range, intake camshaft valve timing is advanced to provide increased torque. During heavy engine load in high-speed range, intake camshaft valve timing is retarded to provide improved high-speed range operation and better fuel economy. During cold temperatures, intake camshaft valve timing remains at the standard or hold position to stabilize fast idle speed and obtain better fuel economy. When engine is started or stopped, intake camshaft valve timing is set at retarded position to improve engine starting.
If a problem exists in the. This circuit is used to send TRAC and VSC control information from the skid control ECU to the ECM (CAN communication system) and engine control information from the ECM to the skid control ECU (CAN communication system). The skid control ECU and ECM are connected to each other via the translate ECU using the CAN communication system. Check engine control system (See DTC CHECK CLEAR ). Check DTC of the translate ECU (See DTC CHECK CLEAR ). Clear the DTC (See DTC CHECK CLEAR ). A REPAIR CIRCUITS INDICATED BY OUTPUT DTCS The steering angle sensor signal is sent to the skid control ECU via the CAN communication system.
When there is a malfunction in the communication system, the DTCs will be detected by the diagnosis function. CAN communication system. Last Updated on Thu, 21 Jul 2016 1 comment When this DTC, or other DTCs relating to ETCS ( System) malfunctions, are set, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator off, and the throttle valve is returned to a 6 throttle angle by the return spring.
The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue at a minimal speed. If the accelerator pedal is depressed gently, the vehicle can be driven slowly. Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off. Last Updated on Sun, 06 Sep 2015 These DTCs indicate an open or short in the automatic transmission fluid ( (TFT sensor) circuit. The automatic transmission fluid (ATF) temperature sensor converts ATF temperature to an electrical resistance value. Based on the resistance, the ECM determines the ATF temperature, and the ECM detects an opens or shorts in the ATF temperature circuit.
If the resistance value of the ATF The ATF temperature can be checked on the OBD II scan tool or intelligent tester display. MONITOR STRATEGY Related DTCs The monitor will run whenever these DTCs are not present. Inspect ignition timing (When using a intelligent tester). Connect a intelligent tester to the Controller Area Network Vehicle Interface Module (CAN VIM).
Then connect the CAN VIM to the Date Link Connector 3 (DLC3). Please refer to the intelligent tester operator's manual for further details. Ignition timing 5 to 15 BTDC at idle (Transmission in neutral) 3. Disconnect the intelligent tester and CAN VIM from the DLC3. Inspect ignition timing (When not using a intelligent tester). Using SST, connect terminals TC and CG of the DLC3.
3 Connecting Terminals TC & CG Of DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 3 Connecting Terminals TC & CG Of DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Last Updated on Mon, 11 May 2015 2 comments When the ignition switch is ON, the center airbag sensor assembly communicates the status of the belt assembly LH to the main body ECU using the CAN communication line. The main body ECU receives signals from the center airbag sensor assembly and transmits them to the combination meter assembly. When the seat belt is unfastened, the combination meter assembly flashes the driver seat belt warning light in the combination meter assembly.
When the seat belt is fastened, the combination meter assembly stops flashing the front driver seat belt warning light. CAN Communication Line. Last Updated on Wed, 28 Nov 2018 With the intelligent tester connected to the DLC3 and the ignition switch on (IG), the ABS, TRAC and VSC data list can be displayed. Follow the prompts on the intelligent tester screen to access the DATA LIST. Performing the ACTIVE TEST using the intelligent tester allows the relay, actuator, etc.
To operate without removing any parts. Performing the ACTIVE TEST as the first step of troubleshooting is one of the methods to shorten labor time. (a) Connect the intelligent tester to the DLC3. The ignition switch must be turned on (IG) to proceed to the ACTIVE TEST using the intelligent tester.
Last Updated on Sun, 12 Nov 2017 2 comments prevents fuel tank gasoline vapors from escaping into the atmosphere. Fuel tank gasoline vapors are routed through, then into air cleaner and intake manifold for combustion in the cylinders., pressure switching valve (VSV) and canister closed valve Vacuum Switching Valve (VSV) are used to determine if a leak or an abnormality exists in EVAP system. Engine Control Module (ECM) determines if a leak or an abnormality exists in EVAP system by using input signal from vapor pressure sensor. Vapor pressure sensor may also be referred to as.
Canister closed valve Vacuum Switching Valve (VSV) may also be referred to as EVAP Canister Closed Valve Vacuum Switching Valve (EVAP-CCVVSV). Pressure switching valve Vacuum Switching Valve (VSV) may also be referred to as EVAP Pressure Switching Valve Vacuum Switching Valve (EVAP-PSVVSV). If a leak or an abnormality exists in EVAP system, a. Connect a intelligent tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIM to the Date Link Connector 3 (DLC3). 62 Connecting Intelligent Tester To Controller Area Network Vehicle Interface Module (CAN VIM) To Date Link Connector 3 (Dlc3) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
62 Connecting Intelligent Tester To Controller Area Network Vehicle Interface Module (CAN VIM) To Date Link Connector 3 (Dlc3) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. The illustration may slightly differ from the display on the intelligent tester. The waveform of the A F sensor is displayed only on the intelligent tester. Last Updated on Sat, 03 Sep 2016 2 comments Performing the intelligent tester's ACTIVE TEST allows relay, VSV, actuator and other items to be operated without removing any parts.
![Diagnostic Diagnostic](/uploads/1/2/5/4/125440849/982222470.jpg)
Performing the ACTIVE TEST early in troubleshooting is one way to save time. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3. Turn the intelligent tester ON.
Enter the following menus DIAGNOSIS ENHANCED OBD II ACTIVE TEST. While driving, the shift position can be forcibly changed with the intelligent tester. Comparing the shift position commanded by the ACTIVE TEST with the actual shift position enables you to confirm the problem (See DATA LIST ACTIVE TEST ).
The shift position commanded by the ECM is shown in the DATA LIST (SHIFT) display on the intelligent tester. When reading DTCs by ), if the remains ON, troubleshoot by following the inspection flow.
There is a possibility that the intelligent tester cannot be used when the ECU is abnormal. Wiring diagram a. Check DTC (See DTC CHECK CLEAR). B REPAIR CIRCUITS INDICATED BY OUTPUT DTCS A GO TO NEXT STEP. When using the intelligent tester 1.
Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position and push the intelligent tester main switch ON. Select ACTIVE TEST mode on the intelligent tester. Check that ON and OFF of the ABS warning light can be shown on the combination meter by the intelligent tester. When not using the intelligent tester.
This center airbag sensor assembly is operable using the check mode of the intelligent tester function. Check mode can detect and output DTC by using a intelligent tester to switch the center airbag sensor assembly to the check mode. A simulation method is used, if the malfunction cannot be reproduced during troubleshooting (the malfunction is temporarily solved, etc.). In this case, joggling each connector, or driving on a city or rough road with the center airbag sensor assembly in check mode makes it possible to obtain a more accurate malfunction condition.