DTC Diagnosis Procedure
WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace damaged parts.
- CHECK SUB-HARNESS
- Remove control valve with TCM. Refer to Exploded View .
- Disconnect transmission range switch connector and TCM connector.
- Check continuity between transmission range switch harness connector (A) terminals and TCM harness connector (B) terminals.
Transmission range switch
TCM
Continuity
Connector
Terminal
Connector
Terminal
F505
8
F503
20
Existed
9
17
10
16
- If OK, check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM
Check the following items:
- The harness connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace damaged parts.
- REPLACE THE OUTPUT SPEED SENSOR AND CHECK DTC
- Replace the output speed sensor. Refer to Exploded View .
- Reinstall any parts removed.
- Perform "DTC CONFIRMATION PROCEDURE". Refer to DTC Logic .
Is the inspection result normal?
YES
INSPECTION END
NO
Replace the control valve with TCM. Refer to Exploded View .