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Lan System: Diagnosis Nissan Versa I

Communication Devices 5 illustrations ~22252 words

Precautions for Trouble Diagnosis

CAUTIONNever apply 7.0 V or more to the measurement terminal. Use a tester with open terminal voltage of 7.0 V or less. Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when checking the harness.

Scheme 7

Scheme 7: Precautions for Harness Repair
Scheme 7: Precautions for Harness Repair

Scheme 8

Scheme 8
Scheme 8
  1. Solder the repaired area and wrap tape around the soldered area. NOTE: A fray of twisted lines must be within 110 mm (4.33 in).
  2. Bypass connection is never allowed at the repaired area. NOTE: Bypass connection may cause CAN communication error. The spliced wire becomes separated and the characteristics of twisted line are lost.
  3. Replace the applicable harness as an assembly if error is detected on the shield lines of CAN communication line.

Symptom When Error Occurs in CAN Communication System

In CAN communication system, multiple units mutually transmit and receive signals. Each unit cannot transmit and receive signals if any error occurs on CAN communication line. Under this condition, multiple control units related to the root cause malfunction or go into fail-safe mode.

CAN Diagnosis with CONSULT-III

CAN diagnosis on CONSULT-III extracts the root cause by receiving the following information.

  1. Response to the system call
  2. Control unit diagnosis information
  3. Self-diagnosis
  4. CAN diagnostic support monitor

Self-Diagnosis

DTCSelf-diagnosis item (CONSULT-III indication)DTC detection conditionInspection/Action
U1000CAN COMM CIRCUITWhen ECM is not transmitting or receiving CAN communication signal of OBD (emission-related diagnosis) for 2 seconds or more.Start the inspection. Refer to the applicable section of the indicated control unit.
When a control unit (except for ECM) is not transmitting or receiving CAN communication signal for 2 seconds or more.
U1001CAN COMM CIRCUITWhen ECM is not transmitting or receiving CAN communication signal other than OBD (emission-related diagnosis) for 2 seconds or more.
U1002SYSTEM COMMWhen a control unit is not transmitting or receiving CAN communication signal for 2 seconds or less.
U1010CONTROL UNIT [CAN]When an error is detected during the initial diagnosis for CAN controller of each control unit.Replace the control unit indicating "U1010".

DTC DETECTION CONDITION CHART

MONITOR ITEM (ON-BOARD DIAGNOSIS)

Note. For some models, CAN communication diagnosis result is received from the vehicle monitor.

Example: Vehicle Display

ItemResult indicatedError counterDescription
CAN_COMM (Initial diagnosis)OK0Normal at present
NG1 - 50Control unit error (The number indicates how many times diagnosis has been run.)
CAN_CIRC_1 (Transmission diagnosis)OK0Normal at present
UNKWN1 - 50Unable to transmit for 2 seconds or more at present. (The number indicates how many times diagnosis has been run.)
CAN_CIRC_2 - 9 (Reception diagnosis of each unit)OK0Normal at present
UNKWN1 - 50Unable to transmit for 2 seconds or more at present. (The number indicates how many times diagnosis has been run.)
Diagnosis not performed.
No control unit for receiving signals. (No applicable optional parts)

ITEM DESCRIPTION CHART

Trouble Diagnosis Procedure

INTERVIEW WITH CUSTOMER

Interview with the customer is important to detect the root cause of CAN communication system errors and to understand vehicle condition and symptoms for proper trouble diagnosis.

Points in interview

Scheme 9

Scheme 9: Trouble Diagnosis Procedure
Scheme 9: Trouble Diagnosis Procedure
  1. What: Parts name, system name
  2. When: Date, Frequency
  3. Where: Road condition, Place
  4. In what condition: Driving condition/environment
  5. Result: Symptom NOTE: Check normal units as well as error symptoms. Example: Circuit between ECM and the combination meter is judged normal if the customer indicates tachometer functions normally. When a CAN communication system error is present, multiple control units may malfunction or go into failsafe mode. Indication of the combination meter is important to detect the root cause because it is the most obvious to the customer, and it performs CAN communication with many units.

INSPECTION OF VEHICLE CONDITION

Check whether the symptom is reproduced or not.

Note. Do not turn the ignition switch OFF or disconnect the battery cable while reproducing the error. The error may temporarily correct itself, making it difficult to determine the root cause.

CAUTIONNever apply 7.0 V or more to the measurement terminal. Use a tester with open terminal voltage of 7.0 V or less. Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when checking the harness.

INSPECTION PROCEDURE

  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side). Harness connector M69 Harness connector E7 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the harness connectors M69 and E7. Check the continuity between the data link connector and the harness connector. CONTINUITY REFERENCE CHART Data link connector Harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M22 6 M69 32A Existed 14 31A Existed Is the inspection result normal? YES : GO TO 3. NO : Repair the main line between the data link connector and the harness connector M69.
  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the connector of ABS actuator and electric unit (control unit). Check the continuity between the harness connector and the ABS actuator and electric unit (control unit) harness connector. CONTINUITY REFERENCE CHART Harness connector ABS actuator and electric unit (control unit) harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. E7 32A E33 26 Existed 31A 15 Existed Is the inspection result normal? YES (Present error) : Check CAN system type decision again. YES (Past error) : Error was detected in the main line between the data link connector and the ABS actuator and electric unit (control unit). NO : Repair the main line between the harness connector E7 and the ABS actuator and electric unit (control unit).
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side). Harness connector M69 Harness connector E7 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the harness connectors M69 and E7. Check the continuity between the data link connector and the harness connector. CONTINUITY REFERENCE CHART Data link connector Harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M22 6 M69 32A Existed 14 31A Existed Is the inspection result normal? YES : GO TO 3. NO : Repair the main line between the data link connector and the harness connector M69.
  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the connector of TCM. Check the continuity between the harness connector and the TCM. CONTINUITY REFERENCE CHART Harness connector TCM harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. E7 32A E31 5 Existed 31A 6 Existed Is the inspection result normal? YES (Present error) : Check CAN system type decision again. YES (Past error) : Error was detected in the main line between the data link connector and the TCM. NO : Repair the main line between the harness connector E7 and the TCM.

Diagnosis Procedure

  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to " «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «GROUND INSPECTION»(ref-319464-S13954895262009062600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of Intelligent Key unit. Check the resistance between the Intelligent Key unit harness connector terminals. RESISTANCE SPECIFICATION CHART Intelligent Key unit harness connector Resistance (ohms) Connector No. Terminal No. M52 2 3 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the Intelligent Key unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the Intelligent Key unit. Refer to «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «GROUND INSPECTION»(ref-319464-S13954895262009062600000) . Is the inspection result normal? YES (Present error) : Replace the Intelligent Key unit. Refer to «REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT»(ref-319465-S05765381862009062600000) . YES (Past error) : Error was detected in the Intelligent Key unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ABS actuator and electric unit (control unit). Check the resistance between the ABS actuator and electric unit (control unit) harness connector terminals. RESISTANCE SPECIFICATION CHART ABS actuator and electric unit (control unit) harness connector Resistance (ohms) Connector No. Terminal No. E33 26 15 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ABS actuator and electric unit (control unit) branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to «ABS CONTROL UNIT POWER AND GROUND SYSTEMS INSPECTION»(ref-337617-S07342613982009080600000) . Is the inspection result normal? YES (Present error) : Replace the ABS actuator and electric unit (control unit). Refer to «REMOVAL AND INSTALLATION»(ref-337617-S07298660942009080600000) . YES (Past error) : Error was detected in the ABS actuator and electric unit (control unit) branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connector of the TCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of TCM. Check the resistance between the TCM harness connector terminals. RESISTANCE SPECIFICATION CHART TCM harness connector Resistance (ohms) Connector No. Terminal No. E31 5 6 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the TCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the TCM. Refer to the following. A/T models: «MAIN POWER SUPPLY AND GROUND CIRCUIT»(ref-337615-S07525382762009080600000) «DIAGNOSTIC PROCEDURE»(ref-337615-S17313175972009080600000) CVT models: «CIRCUIT DIAGRAM»(ref-337628-S26322840412009080600000) «DIAGNOSTIC PROCEDURE»(ref-337628-S23805678082009080600000) Is the inspection result normal? YES (Present error) : Replace the TCM. Refer to the following. A/T models: «REMOVAL AND INSTALLATION»(ref-337615-S08940048342009080600000) CVT models: «REMOVAL AND INSTALLATION»(ref-337628-S04507148422009080600000) YES (Past error) : Error was detected in the TCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.

Scheme 10

Scheme 10: INSPECTION PROCEDURE
Scheme 10: INSPECTION PROCEDURE
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «BCM POWER SUPPLY AND GROUND CIRCUIT CHECK»(ref-337631-S40459676582009080600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) «DTC C1601 BATTERY VOLT»(ref-337639-S03221636282009080600000) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.

Scheme 11

Scheme 11: INSPECTION PROCEDURE
Scheme 11: INSPECTION PROCEDURE
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to (ECM) «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «BCM POWER SUPPLY AND GROUND CIRCUIT CHECK»(ref-337631-S40459676582009080600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) «DTC C1601 BATTERY VOLT»(ref-337639-S03221636282009080600000) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of Intelligent Key unit. Check the resistance between the Intelligent Key unit harness connector terminals. RESISTANCE SPECIFICATION CHART Intelligent Key unit harness connector Resistance (ohms) Connector No. Terminal No. M52 2 3 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the Intelligent Key unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the Intelligent Key unit. Refer to (Intelligent Key) «BCM POWER SUPPLY AND GROUND CIRCUIT»(ref-319465-S02854636742009062600000) . Is the inspection result normal? YES (Present error) : Replace the Intelligent Key unit. Refer to (Intelligent Key) «REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT»(ref-319465-S05765381862009062600000) . YES (Past error) : Error was detected in the Intelligent Key unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to (combination meter) «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to (combination meter) «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side). Harness connector M69 Harness connector E7 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the harness connectors M69 and E7. Check the continuity between the data link connector and the harness connector. CONTINUITY REFERENCE CHART Data link connector Harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M22 6 M69 32A Existed 14 31A Existed Is the inspection result normal? YES : GO TO 3. NO : Repair the main line between the data link connector and the harness connector M69.
  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the connector of ABS actuator and electric unit (control unit). Check the continuity between the harness connector and the ABS actuator and electric unit (control unit) harness connector. CONTINUITY REFERENCE CHART Harness connector ABS actuator and electric unit (control unit) harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. E7 32A E33 26 Existed 31A 15 Existed Is the inspection result normal? YES (Present error) : Check CAN system type decision again. YES (Past error) : Error was detected in the main line between the data link connector and the ABS actuator and electric unit (control unit). NO : Repair the main line between the harness connector E7 and the ABS actuator and electric unit (control unit).
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to (ECM) «POWER SUPPLY AND GROUND CIRCUIT»(ref-337635-S10156395132009080600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «BCM POWER SUPPLY AND GROUND CIRCUIT CHECK»(ref-337631-S40459676582009080600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) «DTC C1601 BATTERY VOLT»(ref-337639-S03221636282009080600000) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to (combination meter) «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to (combination meter) «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ABS actuator and electric unit (control unit). Check the resistance between the ABS actuator and electric unit (control unit) harness connector terminals. RESISTANCE SPECIFICATION CHART ABS actuator and electric unit (control unit) harness connector Resistance (ohms) Connector No. Terminal No. E33 26 15 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ABS actuator and electric unit (control unit) branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to «ABS CONTROL UNIT POWER AND GROUND SYSTEMS INSPECTION»(ref-337617-S07342613982009080600000) . Is the inspection result normal? YES (Present error) : Replace the ABS actuator and electric unit (control unit). Refer to «REMOVAL AND INSTALLATION»(ref-337617-S07298660942009080600000) . YES (Past error) : Error was detected in the ABS actuator and electric unit (control unit) branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side). Harness connector M69 Harness connector E7 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the harness connectors M69 and E7. Check the continuity between the data link connector and the harness connector. CONTINUITY REFERENCE CHART Data link connector Harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M22 6 M69 32A Existed 14 31A Existed Is the inspection result normal? YES : GO TO 3. NO : Repair the main line between the data link connector and the harness connector M69.
  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the connector of ABS actuator and electric unit (control unit). Check the continuity between the harness connector and the ABS actuator and electric unit (control unit) harness connector. CONTINUITY REFERENCE CHART Harness connector ABS actuator and electric unit (control unit) harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. E7 32A E33 26 Existed 31A 15 Existed Is the inspection result normal? YES (Present error) : Check CAN system type decision again. YES (Past error) : Error was detected in the main line between the data link connector and the ABS actuator and electric unit (control unit). NO : Repair the main line between the harness connector E7 and the ABS actuator and electric unit (control unit).
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to (ECM) «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «BCM POWER SUPPLY AND GROUND CIRCUIT CHECK»(ref-337631-S40459676582009080600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of Intelligent Key unit. Check the resistance between the Intelligent Key unit harness connector terminals. RESISTANCE SPECIFICATION CHART Intelligent Key unit harness connector Resistance (ohms) Connector No. Terminal No. M52 2 3 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the Intelligent Key unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the Intelligent Key unit. Refer to «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «GROUND INSPECTION»(ref-319464-S13954895262009062600000) . Is the inspection result normal? YES (Present error) : Replace the Intelligent Key unit. Refer to «REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT»(ref-319465-S05765381862009062600000) . YES (Past error) : Error was detected in the Intelligent Key unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ABS actuator and electric unit (control unit). Check the resistance between the ABS actuator and electric unit (control unit) harness connector terminals. RESISTANCE SPECIFICATION CHART ABS actuator and electric unit (control unit) harness connector Resistance (ohms) Connector No. Terminal No. E33 26 15 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ABS actuator and electric unit (control unit) branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to «ABS CONTROL UNIT POWER AND GROUND SYSTEMS INSPECTION»(ref-337617-S07342613982009080600000) . Is the inspection result normal? YES (Present error) : Replace the ABS actuator and electric unit (control unit). Refer to «REMOVAL AND INSTALLATION»(ref-337617-S07298660942009080600000) . YES (Past error) : Error was detected in the ABS actuator and electric unit (control unit) branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side). Harness connector M69 Harness connector E7 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the harness connectors M69 and E7. Check the continuity between the data link connector and the harness connector. CONTINUITY REFERENCE CHART Data link connector Harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M22 6 M69 32A Existed 14 31A Existed Is the inspection result normal? YES : GO TO 3. NO : Repair the main line between the data link connector and the harness connector M69.
  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the connector of TCM. Check the continuity between the harness connector and the TCM. CONTINUITY REFERENCE CHART Harness connector TCM harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. E7 32A E31 5 Existed 31A 6 Existed Is the inspection result normal? YES (Present error) : Check CAN system type decision again. YES (Past error) : Error was detected in the main line between the data link connector and the TCM. NO : Repair the main line between the harness connector E7 and the TCM.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to (ECM) «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «BCM POWER SUPPLY AND GROUND CIRCUIT CHECK»(ref-337631-S40459676582009080600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connector of the TCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of TCM. Check the resistance between the TCM harness connector terminals. RESISTANCE SPECIFICATION CHART TCM harness connector Resistance (ohms) Connector No. Terminal No. E31 5 6 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the TCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the TCM. Refer to the following. A/T models: «MAIN POWER SUPPLY AND GROUND CIRCUIT»(ref-337615-S07525382762009080600000) CVT models: «CIRCUIT DIAGRAM»(ref-337628-S26322840412009080600000) Is the inspection result normal? YES (Present error) : Replace the TCM. Refer to the following. A/T models: «REMOVAL AND INSTALLATION»(ref-337615-S08940048342009080600000) CVT models: «REMOVAL AND INSTALLATION»(ref-337628-S04507148422009080600000) YES (Past error) : Error was detected in the TCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side). Harness connector M69 Harness connector E7 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the harness connectors M69 and E7. Check the continuity between the data link connector and the harness connector. CONTINUITY REFERENCE CHART Data link connector Harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M22 6 M69 32A Existed 14 31A Existed Is the inspection result normal? YES : GO TO 3. NO : Repair the main line between the data link connector and the harness connector M69.
  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the connector of TCM. Check the continuity between the harness connector and the TCM. CONTINUITY REFERENCE CHART Harness connector TCM harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. E7 32A E31 5 Existed 31A 6 Existed Is the inspection result normal? YES (Present error) : Check CAN system type decision again. YES (Past error) : Error was detected in the main line between the data link connector and the TCM. NO : Repair the main line between the harness connector E7 and the TCM.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «BCM POWER SUPPLY AND GROUND CIRCUIT CHECK»(ref-337631-S40459676582009080600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ABS actuator and electric unit (control unit). Check the resistance between the ABS actuator and electric unit (control unit) harness connector terminals. RESISTANCE SPECIFICATION CHART ABS actuator and electric unit (control unit) harness connector Resistance (ohms) Connector No. Terminal No. E33 26 15 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ABS actuator and electric unit (control unit) branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to «ABS CONTROL UNIT POWER AND GROUND SYSTEMS INSPECTION»(ref-337617-S07342613982009080600000) . Is the inspection result normal? YES (Present error) : Replace the ABS actuator and electric unit (control unit). Refer to «REMOVAL AND INSTALLATION»(ref-337617-S07298660942009080600000) . YES (Past error) : Error was detected in the ABS actuator and electric unit (control unit) branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connector of the TCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of TCM. Check the resistance between the TCM harness connector terminals. RESISTANCE SPECIFICATION CHART TCM harness connector Resistance (ohms) Connector No. Terminal No. E31 5 6 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the TCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the TCM. Refer to the following. A/T models: «MAIN POWER SUPPLY AND GROUND CIRCUIT»(ref-337615-S07525382762009080600000) CVT models: «CIRCUIT DIAGRAM»(ref-337628-S26322840412009080600000) Is the inspection result normal? YES (Present error) : Replace the TCM. Refer to the following. A/T models: «REMOVAL AND INSTALLATION»(ref-337615-S08940048342009080600000) CVT models: «REMOVAL AND INSTALLATION»(ref-337628-S04507148422009080600000) YES (Past error) : Error was detected in the TCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side). Harness connector M69 Harness connector E7 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the harness connectors M69 and E7. Check the continuity between the data link connector and the harness connector. CONTINUITY REFERENCE CHART Data link connector Harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M22 6 M69 32A Existed 14 31A Existed Is the inspection result normal? YES : GO TO 3. NO : Repair the main line between the data link connector and the harness connector M69.
  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the connector of TCM. Check the continuity between the harness connector and the TCM. CONTINUITY REFERENCE CHART Harness connector TCM harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. E7 32A E31 5 Existed 31A 6 Existed Is the inspection result normal? YES (Present error) : Check CAN system type decision again. YES (Past error) : Error was detected in the main line between the data link connector and the TCM. NO : Repair the main line between the harness connector E7 and the TCM.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «BCM POWER SUPPLY AND GROUND CIRCUIT CHECK»(ref-337631-S40459676582009080600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connector of the TCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of TCM. Check the resistance between the TCM harness connector terminals. RESISTANCE SPECIFICATION CHART TCM harness connector Resistance (ohms) Connector No. Terminal No. E31 5 6 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the TCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the TCM. Refer to the following. A/T models: «MAIN POWER SUPPLY AND GROUND CIRCUIT»(ref-337615-S07525382762009080600000) CVT models: «CIRCUIT DIAGRAM»(ref-337628-S26322840412009080600000) Is the inspection result normal? YES (Present error) : Replace the TCM. Refer to the following. A/T models: «REMOVAL AND INSTALLATION»(ref-337615-S08940048342009080600000) CVT models: «REMOVAL AND INSTALLATION»(ref-337628-S04507148422009080600000) YES (Past error) : Error was detected in the TCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side). Harness connector M69 Harness connector E7 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the harness connectors M69 and E7. Check the continuity between the data link connector and the harness connector. CONTINUITY REFERENCE CHART Data link connector Harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M22 6 M69 32A Existed 14 31A Existed Is the inspection result normal? YES : GO TO 3. NO : Repair the main line between the data link connector and the harness connector M69.
  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the connector of TCM. Check the continuity between the harness connector and the TCM. CONTINUITY REFERENCE CHART Harness connector TCM harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. E7 32A E31 5 Existed 31A 6 Existed Is the inspection result normal? YES (Present error) : Check CAN system type decision again. YES (Past error) : Error was detected in the main line between the data link connector and the TCM. NO : Repair the main line between the harness connector E7 and the TCM.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «BCM POWER SUPPLY AND GROUND CIRCUIT CHECK»(ref-337631-S40459676582009080600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of Intelligent Key unit. Check the resistance between the Intelligent Key unit harness connector terminals. RESISTANCE SPECIFICATION CHART Intelligent Key unit harness connector Resistance (ohms) Connector No. Terminal No. M52 2 3 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the Intelligent Key unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the Intelligent Key unit. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-319465-S18749281282009062600000) . Is the inspection result normal? YES (Present error) : Replace the Intelligent Key unit. Refer to «REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT»(ref-319465-S05765381862009062600000) . YES (Past error) : Error was detected in the Intelligent Key unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connector of the TCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of TCM. Check the resistance between the TCM harness connector terminals. RESISTANCE SPECIFICATION CHART TCM harness connector Resistance (ohms) Connector No. Terminal No. E31 5 6 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the TCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the TCM. Refer to the following. A/T models: «MAIN POWER SUPPLY AND GROUND CIRCUIT»(ref-337615-S07525382762009080600000) CVT models: «CIRCUIT DIAGRAM»(ref-337628-S26322840412009080600000) Is the inspection result normal? YES (Present error) : Replace the TCM. Refer to the following. A/T models: «REMOVAL AND INSTALLATION»(ref-337615-S08940048342009080600000) CVT models: «REMOVAL AND INSTALLATION»(ref-337628-S04507148422009080600000) YES (Past error) : Error was detected in the TCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side). Harness connector M69 Harness connector E7 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the harness connectors M69 and E7. Check the continuity between the data link connector and the harness connector. CONTINUITY REFERENCE CHART Data link connector Harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M22 6 M69 32A Existed 14 31A Existed Is the inspection result normal? YES : GO TO 3. NO : Repair the main line between the data link connector and the harness connector M69.
  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the connector of TCM. Check the continuity between the harness connector and the TCM. CONTINUITY REFERENCE CHART Harness connector TCM harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. E7 32A E31 5 Existed 31A 6 Existed Is the inspection result normal? YES (Present error) : Check CAN system type decision again. YES (Past error) : Error was detected in the main line between the data link connector and the TCM. NO : Repair the main line between the harness connector E7 and the TCM.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «BCM POWER SUPPLY AND GROUND CIRCUIT CHECK»(ref-337631-S40459676582009080600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ABS actuator and electric unit (control unit). Check the resistance between the ABS actuator and electric unit (control unit) harness connector terminals. RESISTANCE SPECIFICATION CHART ABS actuator and electric unit (control unit) harness connector Resistance (ohms) Connector No. Terminal No. E33 26 15 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ABS actuator and electric unit (control unit) branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to «ABS CONTROL UNIT POWER AND GROUND SYSTEMS INSPECTION»(ref-337617-S07342613982009080600000) . Is the inspection result normal? YES (Present error) : Replace the ABS actuator and electric unit (control unit). Refer to (ABS actuator) «REMOVAL AND INSTALLATION»(ref-337617-S07298660942009080600000) . YES (Past error) : Error was detected in the ABS actuator and electric unit (control unit) branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connector of the TCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of TCM. Check the resistance between the TCM harness connector terminals. RESISTANCE SPECIFICATION CHART TCM harness connector Resistance (ohms) Connector No. Terminal No. E31 5 6 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the TCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the TCM. Refer to the following. A/T models: «MAIN POWER SUPPLY AND GROUND CIRCUIT»(ref-337615-S07525382762009080600000) CVT models: «CIRCUIT DIAGRAM»(ref-337628-S26322840412009080600000) Is the inspection result normal? YES (Present error) : Replace the TCM. Refer to the following. A/T models: «REMOVAL AND INSTALLATION»(ref-337615-S08940048342009080600000) CVT models: «REMOVAL AND INSTALLATION»(ref-337628-S04507148422009080600000) YES (Past error) : Error was detected in the TCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side). Harness connector M69 Harness connector E7 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the harness connectors M69 and E7. Check the continuity between the data link connector and the harness connector. CONTINUITY REFERENCE CHART Data link connector Harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. M22 6 M69 32A Existed 14 31A Existed Is the inspection result normal? YES : GO TO 3. NO : Repair the main line between the data link connector and the harness connector M69.
  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Disconnect the connector of TCM. Check the continuity between the harness connector and the TCM. CONTINUITY REFERENCE CHART Harness connector TCM harness connector Continuity Connector No. Terminal No. Connector No. Terminal No. E7 32A E31 5 Existed 31A 6 Existed Is the inspection result normal? YES (Present error) : Check CAN system type decision again. YES (Past error) : Error was detected in the main line between the data link connector and the TCM. NO : Repair the main line between the harness connector E7 and the TCM.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). ECM Harness connector E7 Harness connector M69 Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. RESISTANCE SPECIFICATION CHART ECM harness connector Resistance (ohms) Connector No. Terminal No. E16 84 83 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ECM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to «POWER SUPPLY AND GROUND CIRCUIT»(ref-319464-S36109663602009062600000) «DIAGNOSIS PROCEDURE»(ref-319464-S39652130762009062600000) . Is the inspection result normal? YES (Present error) : Replace the ECM. Refer to «PROCEDURE AFTER REPLACING ECM»(ref-319464-S00938030642009062600000) . YES (Past error) : Error was detected in the ECM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of BCM. Check the resistance between the BCM harness connector terminals. RESISTANCE SPECIFICATION CHART BCM harness connector Resistance (ohms) Connector No. Terminal No. M18 39 40 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the BCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the BCM. Refer to «BCM POWER SUPPLY AND GROUND CIRCUIT CHECK»(ref-337631-S40459676582009080600000) . Is the inspection result normal? YES (Present error) : Replace the BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-337631-S05941440782009080600000) . YES (Past error) : Error was detected in the BCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check the resistance between the data link connector terminals. RESISTANCE SPECIFICATION CHART Data link connector Resistance (ohms) Connector No. Terminal No. M22 6 14 Approx. 54 - 66 Is the measurement value within the specification? YES (Present error) : Check the CAN system type decision again. YES (Past error) : Error was detected in the data link connector branch line circuit. NO : Repair the data link connector branch line.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of EPS control unit. Check the resistance between the EPS control unit harness connector terminals. RESISTANCE SPECIFICATION CHART EPS control unit harness connector Resistance (ohms) Connector No. Terminal No. M53 9 16 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the EPS control unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the EPS control unit. Refer to «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS»(ref-337618) . Is the inspection result normal? YES (Present error) : Replace the EPS control unit. Refer to «REMOVAL AND INSTALLATION»(ref-337621-S42121218432009080600000) . YES (Past error) : Error was detected in the EPS control unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of Intelligent Key unit. Check the resistance between the Intelligent Key unit harness connector terminals. RESISTANCE SPECIFICATION CHART Intelligent Key unit harness connector Resistance (ohms) Connector No. Terminal No. M52 2 3 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the Intelligent Key unit branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the Intelligent Key unit. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-319465-S18749281282009062600000) . Is the inspection result normal? YES (Present error) : Replace the Intelligent Key unit. Refer to «REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT»(ref-319465-S05765381862009062600000) . YES (Past error) : Error was detected in the Intelligent Key unit branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of combination meter. Check the resistance between the combination meter harness connector terminals. RESISTANCE SPECIFICATION CHART Combination meter harness connector Resistance (ohms) Connector No. Terminal No. M24 1 2 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the combination meter branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the combination meter. Refer to «POWER SUPPLY AND GROUND CIRCUIT INSPECTION»(ref-337635-S35246333152009080600000) . Is the inspection result normal? YES (Present error) : Replace the combination meter. Refer to «REMOVAL AND INSTALLATION»(ref-337635-S38821939382009080600000) . YES (Past error) : Error was detected in the combination meter branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ABS actuator and electric unit (control unit). Check the resistance between the ABS actuator and electric unit (control unit) harness connector terminals. RESISTANCE SPECIFICATION CHART ABS actuator and electric unit (control unit) harness connector Resistance (ohms) Connector No. Terminal No. E33 26 15 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the ABS actuator and electric unit (control unit) branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to «ABS CONTROL UNIT POWER AND GROUND SYSTEMS INSPECTION»(ref-337617-S07342613982009080600000) . Is the inspection result normal? YES (Present error) : Replace the ABS actuator and electric unit (control unit). Refer to (ABS actuator) «REMOVAL AND INSTALLATION»(ref-337617-S07298660942009080600000) . YES (Past error) : Error was detected in the ABS actuator and electric unit (control unit) branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connector of the TCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of TCM. Check the resistance between the TCM harness connector terminals. RESISTANCE SPECIFICATION CHART TCM harness connector Resistance (ohms) Connector No. Terminal No. E31 5 6 Approx. 54 - 66 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the TCM branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the TCM. Refer to the following. A/T models: «MAIN POWER SUPPLY AND GROUND CIRCUIT»(ref-337615-S07525382762009080600000) CVT models: «CIRCUIT DIAGRAM»(ref-337628-S26322840412009080600000) Is the inspection result normal? YES (Present error) : Replace the TCM. Refer to the following. A/T models: «REMOVAL AND INSTALLATION»(ref-337615-S08940048342009080600000) CVT models: «REMOVAL AND INSTALLATION»(ref-337628-S04507148422009080600000) YES (Past error) : Error was detected in the TCM branch line. NO : Repair the power supply and the ground circuit.
  1. CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). IPDM E/R Harness connector E7 (Models without ABS) Harness connector M69 (Models without ABS) Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of IPDM E/R. Check the resistance between the IPDM E/R harness connector terminals. RESISTANCE SPECIFICATION CHART IPDM E/R harness connector Resistance (ohms) Connector No. Terminal No. E46 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 3. NO : Repair the IPDM E/R branch line.
  3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the IPDM E/R. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-337618-S04775502612009080600000) . Is the inspection result normal? YES (Present error) : Replace the IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-337618-S28938113412009080600000) . YES (Past error) : Error was detected in the IPDM E/R branch line. NO : Repair the power supply and the ground circuit.
  1. CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication system. Check terminals and connectors for damage, bend and loose connection. Is the inspection result normal? YES : GO TO 2. NO : Repair the terminal and connector.
  2. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector terminals. CONTINUITY REFERENCE CHART Data link connector Continuity Connector No. Terminal No. M22 6 14 Not existed Is the inspection result normal? YES : GO TO 3. NO : Check the harness and repair the root cause.
  3. CHECK HARNESS CONTINUITY (SHORT CIRCUIT) Check the continuity between the data link connector and the ground. CONTINUITY REFERENCE CHART Data link connector Ground Continuity Connector No. Terminal No. M22 6 Not existed 14 Not existed Is the inspection result normal? YES : GO TO 4. NO : Check the harness and repair the root cause.
  4. CHECK ECM AND IPDM E/R TERMINATION CIRCUIT Remove the ECM and the IPDM E/R. Check the resistance between the ECM terminals. RESISTANCE SPECIFICATION CHART ECM Resistance (ohms) Terminal No. 84 83 Approx. 108 - 132 Check the resistance between the IPDM E/R terminals. RESISTANCE SPECIFICATION CHART IPDM E/R Resistance (ohms) Terminal No. 41 40 Approx. 108 - 132 Is the measurement value within the specification? YES : GO TO 5. NO : Replace the ECM and/or the IPDM E/R.
  5. CHECK SYMPTOM Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. Inspection result Reproduced : GO TO 6. Non-reproduced : Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
  6. CHECK UNIT REPRODUCTION Perform the reproduction test as per the following procedure for each unit. Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect one of the unit connectors of CAN communication system. NOTE: ECM and IPDM E/R have a termination circuit. Check other units first. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced. NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms. Inspection result Reproduced : Connect the connector. Check other units as per the above procedure. Non-reproduced : Replace the unit whose connector was disconnected.

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