Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Do not disconnect the battery negative terminal and the driver seat control unit connector until DTC is confirmed with CONSULT.
- CHECK FUSE
Check that the following fusible link is not blown.
Signal name
Fusible link No.
Battery power supply
I (40 A)
Is the inspection result normal?
YES
GO TO 2.
NO
Replace the blown fusible link after repairing the affected circuit.
- CHECK POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect driver seat control unit.
- Check voltage between driver seat control unit harness connector and ground.
(+)
(-)
Power source
Condition
Voltage (V)
(Approx.)
Driver seat control unit
Connector
Terminal
B223
37
Ground
Battery power supply
Ignition switch OFF
Battery voltage
Is the inspection result normal?
YES
GO TO 3.
NO
Check the following:
- Repair or replace harness.
- Circuit breaker.
- CHECK GROUND CIRCUIT
Check continuity between the driver seat control unit harness connector and ground.
Driver seat control unit
Ground
Continuity
Connector
Terminal
B223
39
Yes
Is the inspection result normal?
YES
Inspection End.
NO
Repair or replace harness.