Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK TCM POWER SOURCE
- Turn ignition switch OFF.
- Disconnect TCM connector.
- Check voltage between TCM harness connector terminals and ground.
TCM
-
Condition
Voltage (Approx.)
Connector
Terminal
E74
9
Ground
Turn ignition switch ON
Battery voltage
Turn ignition switch OFF
0 V
E73
41
Always
Battery voltage
42
Is the inspection result normal?
YES
GO TO 2 .
NO
GO TO 3 .
- CHECK TCM GROUND CIRCUIT
Check continuity between TCM harness connector terminals and ground.
TCM
-
Continuity
Connector
Terminal
E73
36
Ground
Existed
37
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace malfunctioning parts.
- DETECT MALFUNCTIONING ITEM
Check the following.
- Harness open circuit or short circuit between fuse block (J/B) and TCM.
- Harness open circuit or short circuit between fuse block (J/B) and battery.
- 10A fuse (No. 2)
- Fuse block (J/B)
- Battery
- Harness open circuit or short circuit between IPDM E/R and TCM.
- Harness open circuit or short circuit between IPDM E/R and ignition switch.
- 10A fuse (No. 47)
- IPDM E/R
- Ignition switch
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace malfunctioning parts.