Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Disconnect IPDM E/R harness connector E119.
- Check the continuity between IPDM E/R harness connector and ECM harness connector.
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
E119
16
F79
99
Existed
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 2 .
NO
Repair or replace error-detected parts.
- CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT
- Check the continuity between IPDM E/R sensor harness connector and ECM harness connector.
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
E119
11
F79
111
Existed
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
Perform the trouble diagnosis for IPDM E/R power supply circuit.
NO
Repair or replace error-detected parts.
- Check the continuity between IPDM E/R sensor harness connector and ECM harness connector.