Diagnosis Procedure
WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to "CONSULT FUNCTION (TRANSMISSION) ".
Is a malfunction in the CAN communication indicated in the results?
YES: Check CAN communication line. Refer to U1000 CAN COMM CIRCUIT .
NO: GO TO 2.
- CHECK DTC WITH TCM
With CONSULT
- Turn ignition switch "ON". (Do not start engine.)
- Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT.
- Depress accelerator pedal and read out the value of "ACCELE POSI".
Item name Condition Display value (Approx.) ACCELE POSI Released accelerator pedal. 0.0/8 Fully depressed accelerator pedal. 8/8 - Select "SELF-DIAG RESULTS" mode for "TRANSMISSION" with CONSULT. Refer to
"CONSULT FUNCTION (TRANSMISSION) ".
OK or NG
OK: GO TO 4.
NG: GO TO 3.
- CHECK DTC WITH ECM
With CONSULT
- Turn ignition switch "ON". (Do not start engine.)
- Select "SELF-DIAG RESULTS" mode for "ENGINE" with CONSULT. Refer to
"CONSULT FUNCTION (TRANSMISSION) ".
OK or NG
OK: GO TO 4.
NG: Check the DTC detected item. Refer to "DTC NO. INDEX ".
- If CAN communication line is detected, go to "DIAGNOSIS PROCEDURE ".
- CHECK DTC
Perform "DTC Confirmation Procedure".
- Refer to
"DTC CONFIRMATION PROCEDURE ".
OK or NG
OK: INSPECTION END
NG: GO TO 5.
- Refer to
"DTC CONFIRMATION PROCEDURE ".
- CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to "DIAGNOSIS PROCEDURE ".
OK or NG
OK: GO TO 6.
NG: Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM
Check the following items:
- The 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 ".
NG: Repair or replace damaged parts.
- The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.