Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- CHECK REAR SEATBACK SWITCH (DRIVER SIDE) GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect rear seatback switch (driver side) connector.
- Check continuity between rear seatback switch (driver side) harness connector and ground.
Rear seatback switch (driver side) Ground Continuity Connector Terminal B90 6 Yes Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair or replace harness.
- CHECK REAR SEATBACK SWITCH (DRIVER SIDE) RETURN SIGNAL
Check voltage between rear seatback switch (driver side) harness connector and ground.
(+) (-) Voltage (V) Rear seatback switch (driver side) Connector Terminal B90 9 Ground 4.7 - 5.3 Is the inspection result normal?
YES
GO TO STEP 4 .
NO
GO TO STEP 3 .
- CHECK REAR SEATBACK SWITCH (DRIVER SIDE) CIRCUIT
- Disconnect seatback power return control unit connector.
- Check continuity between seatback power return control unit harness connector and rear seatback switch (driver side) harness connector.
Seatback power return control unit Rear seatback switch (driver side) Continuity Connector Terminal Connector Terminal B414 29 B90 9 Yes - Check continuity between seatback power return control unit harness connector and ground.
Seatback power return control unit Ground Continuity Connector Terminal B414 29 No
Is the inspection result normal?
YES
Replace seatback power return control unit. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness.
- CHECK REAR SEATBACK SWITCH (DRIVER SIDE)
Check rear seatback switch (driver side).
Refer to COMPONENT INSPECTION .
Is the inspection result normal?
YES
GO TO STEP 5 .
NO
Replace rear seatback switch (driver side). Refer to REMOVAL AND INSTALLATION .
- CHECK INTERMITTENT INCIDENT
Refer to INTERMITTENT INCIDENT .
Inspection End.