Diagnostic Procedure
- CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to "SELF-DIAGNOSTIC RESULT MODE ", "DIAGNOSTIC PROCEDURE WITHOUT CONSULT-II ".
Is a malfunction in the CAN communication indicated in the results?
YES : Check CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE ".
NO : GO TO 2.
- CHECK DTC WITH TCM
With CONSULT-II
- Turn ignition switch ON. (Do not start engine.)
- Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
- Depress accelerator pedal and read out the value of "ACCELE POSI".ACCELE POSI REFERENCE CHART
Item name Condition Display value (Approx.) ACCELE POSI Released accelerator pedal. 0.0/8 Fully depressed accelerator pedal. 8.0/8 - Select "SELF-DIAG RESULTS" mode for "A/T" with CONSULT-II. Refer to "SELF-DIAGNOSTIC RESULT MODE ".
OK or NG
OK : GO TO 4.
NG : GO TO 3.
- CHECK DTC WITH ECM
With CONSULT-II
- Turn ignition switch ON. (Do not start engine.)
- Select "SELF-DIAG RESULTS" mode for "ENGINE" with CONSULT-II. Refer to "CONSULT-II FUNCTION (ENGINE) " (for VQ35DE) or REFER TO "CONSULT-II FUNCTION (ENGINE) " (for VK45DE).
OK or NG
OK : GO TO 4.
NG : Check the DTC detected item. Refer to "CONSULT-II FUNCTION (ENGINE) " (for VQ35DE) or "CONSULT-II FUNCTION (ENGINE) " (for VK45DE).
- If CAN communication line is detected, go to "DTC U1000 CAN COMMUNICATION LINE ".
- CHECK DTC
Perform "DTC CONFIRMATION PROCEDURE ".
OK or NG
OK : INSPECTION END
NG : GO TO 5.
- CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to "MAIN POWER SUPPLY AND GROUND CIRCUIT ".
OK or NG
OK : GO TO 6.
NG : Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM
Check the following.
- A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK : Replace the control valve with TCM. Refer to "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 ".
NG : Repair or replace damaged parts.