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 AUTOMATIC BACK DOOR MAIN SWITCH INPUT SIGNAL
- Turn ignition switch OFF.
- Disconnect automatic back door main switch connector.
- Check voltage between automatic back door main switch harness connector and ground.
(+) (-) Voltage
(Approx.)Automatic back door main switch Connector Terminal M185 1 Ground Battery voltage
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
GO TO STEP 2 .
- CHECK AUTOMATIC BACK DOOR MAIN SWITCH CIRCUIT
- Disconnect automatic back door control module connector.
- Check continuity between automatic back door control module harness connector and automatic back door main switch harness connector.
Automatic back door control module Automatic back door main switch Continuity Connector Terminal Connector Terminal B55 10 M185 1 Yes - Check continuity between automatic back door control module connector and ground.
Automatic back door control module Ground Continuity Connector Terminal B55 10 No
Is the inspection result normal?
YES
Replace automatic back door control module. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness.
- CHECK AUTOMATIC BACK DOOR MAIN SWITCH GROUND CIRCUIT
Check continuity between automatic back door main switch connector and ground.
Automatic back door main switch Ground Continuity Connector Terminal M185 3 Yes Is the inspection result normal?
YES
GO TO STEP 4 .
NO
Repair or replace harness.
- CHECK AUTOMATIC BACK DOOR MAIN SWITCH
Refer to COMPONENT INSPECTION .
Is the inspection result normal?
YES
GO TO STEP 5 .
NO
Replace automatic back door main switch. Refer to REMOVAL AND INSTALLATION .
- CHECK INTERMITTENT INCIDENT
Refer to INTERMITTENT INCIDENT .
Inspection End.