Pinpoint Test J: The Rear Video Is Inoperative
Parking Aid - Video
Pinpoint Test J: The Rear Video Is Inoperative
Normal Operation
When the ignition switch is in the RUN position, the video camera receives voltage. For vehicles without navigation, with the gear selector in the REVERSE (R) position, a reverse voltage signal is sent to the auto-dimming interior mirror. For vehicles with navigation, with the gear selector in the REVERSE (R) position, a reverse signal is sent from the Instrument Panel Cluster (IPC) to the Audio Control Module (ACM) over the Medium Speed Controller Area Network (MS-CAN), enabling the system. The video signal from the video camera displays an image on the left portion of the auto-dimming interior mirror (for vehicles without navigation) or displays an image on the ACM (Audio Control Module) (for vehicles with navigation).
- DTC C1001:01 (Vision System Camera: General Electrical Failure)- a continuous DTC that sets in the ACM (Audio Control Module) when no video signal is detected for more than 3 seconds when the vehicle is in REVERSE (R).
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Video camera
- Auto-dimming interior mirror (without navigation)
- ACM (Audio Control Module) (With navigation)
PINPOINT TEST J : THE REAR VIDEO IS INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.
J1 VERIFY VEHICLE EQUIPMENT - NAVIGATION
- Check the vehicle for navigation.
Is the vehicle equipped with navigation?
Yes
GO to J7.
No
GO to J2.
J2 CHECK THE REVERSING LAMPS OPERATION
- Ignition OFF.
- Apply the parking brake.
- Ignition ON.
- Select REVERSE.
- Check the operation of the reversing lamps.
Do the reversing lamps operate correctly?
Yes
GO to J3.
No
REFER to Lighting and Horns.
J3 CHECK FOR VIDEO CAMERA SIGNAL
- Observe the auto-dimming interior mirror.
- Select PARK.
- Select REVERSE.
Does the auto-dimming interior mirror momentarily display a blue screen and then turns black?
Yes
The auto-dimming interior mirror is functional. There is no signal from the video camera. GO to J9.
No
GO to J4.
J4 CHECK THE AUTO-DIMMING INTERIOR MIRROR VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Auto-Dimming Interior Mirror C9039.
- Ignition ON.
- Measure the voltage between the auto-dimming interior mirror C9039-1, circuit CBP41 (BU), harness side and ground.
Is the voltage greater than 10 volts?
Yes
GO to J5.
No
REPAIR the circuit. TEST the system for normal operation.
J5 CHECK THE AUTO-DIMMING INTERIOR MIRROR REVERSE INPUT CIRCUIT
- Select REVERSE.
- Measure the voltage between the auto-dimming interior mirror C9039-2, circuit CLS28 (BU/WH), harness side and ground.
Is the voltage greater than 10 volts?
Yes
GO to J6.
No
REPAIR the circuit. TEST the system for normal operation.
J6 CHECK THE AUTO-DIMMING INTERIOR MIRROR GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Negative Battery Cable.
- Measure the resistance between the auto-dimming interior mirror C9039-3, circuit GD133 (BK), harness side and ground.
Is the resistance less than 5 ohms?
Yes
INSTALL a new auto-dimming interior mirror. CONNECT the negative battery cable. TEST the system for normal operation.
No
REPAIR the circuit. CONNECT the negative battery cable. TEST the system for normal operation.
J7 CHECK FOR ACM (Audio Control Module) DTCs
- Review the recorded DTCs from the ACM (Audio Control Module) self-test.
Is DTC C1001:01 or DTC U0155:00 present?
Yes
For DTC C1001:01, GO to J9.
For DTC U0155:00, REFER to Accessories and Optional Equipment.
No
GO to J8.
J8 CHECK THE ACM (Audio Control Module) DISPLAY
- Select REVERSE.
- Observe the ACM (Audio Control Module) display.
Does the ACM (Audio Control Module) display "PLEASE CHECK SURROUNDINGS FOR SAFETY" at the top for the screen?
Yes
GO to J9.
No
INSTALL a new ACM (Audio Control Module). TEST the system for normal operation.
J9 CHECK THE VIDEO CAMERA VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Video Camera C4357.
- Ignition ON.
- Measure the voltage between the video camera C4357-1, circuit CBP35 (YE/GY), harness side and ground.
Is the voltage greater than 10 volts?
Yes
GO to J10.
No
REPAIR the circuit. TEST the system for normal operation.
J10 CHECK THE VIDEO CAMERA GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Negative Battery Cable.
- Measure the resistance between the video camera C4357-6, circuit GD149 (BK/GY), harness side and ground.
Is the resistance less than 5 ohms?
Yes
GO to J11.
No
REPAIR the circuit. CONNECT the negative battery cable. TEST the system for normal operation.
J11 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO GROUND WITH THE AUTO-DIMMING INTERIOR MIRROR (WITHOUT NAVIGATION) OR ACM (Audio Control Module) (WITH NAVIGATION) DISCONNECTED
- Disconnect: Auto-Dimming Interior Mirror C9039 (Without Navigation) or ACM (Audio Control Module) C240C (With Navigation).
- Measure the resistance between the video camera C4357-4, circuit VME19 (BN), harness side and ground; and between the video camera C4357-5, circuit RME19 (BN/YE), harness side and ground.
Are the resistances greater than 10,000 ohms?
Yes
GO to J12.
No
REPAIR the circuit in question. TEST the system for normal operation.
J12 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO VIDEO SHIELD
- Measure the resistance between the video camera C4357-4, circuit VME19 (BN), harness side and the video camera C4357-2, circuit DME19 (BK), harness side.
- Measure the resistance between the video camera C4357-5, circuit RME19 (BN/YE), harness side and the video camera C4357-2, circuit DME19 (BK), harness side.
Are the resistances greater than 10,000 ohms?
Yes
GO to J13.
No
REPAIR the circuit in question. CONNECT the negative battery cable. TEST the system for normal operation.
J13 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO VOLTAGE
- Connect: Negative Battery Cable.
- Ignition ON.
- Measure the voltage between the video camera C4357-4, circuit VME19 (BN), harness side and ground.
- Measure the voltage between the video camera C4357-5, circuit RME19 (BN/YE), harness side and ground.
Is any voltage present on either circuit?
Yes
REPAIR the circuit in question. TEST the system for normal operation.
No
GO to J14.
J14 CHECK VIDEO SIGNAL CIRCUITS FOR AN OPEN
- Ignition OFF.
- Disconnect: Auto-Dimming Interior Mirror (Without Navigation) C9039.
- Disconnect: ACM (Audio Control Module) (With Navigation) C240C.
- Connect a fused jumper wire between the video camera C4357-4, circuit VME19 (BN), harness side and the video camera C4357-5, circuit RME19 (BN/YE), harness side.
- For vehicles without navigation, measure the resistance between the auto-dimming interior mirror C9039-8, circuit VME19 (BN), harness side and the auto-dimming interior mirror C9039-16, circuit RME19 (BN/YE), harness side.
- For vehicles with navigation, measure the resistance between the ACM (Audio Control Module) C240C-6, circuit RME19 (BN/YE), harness side and the ACM (Audio Control Module) C240C-1, circuit VME19 (BN), harness side.
Are the resistances less than 5 ohms?
Yes
REMOVE the jumper wire. CARRY OUT the video camera component test Parking Aid - Video. If the camera is inoperative, INSTALL a new video camera. REFER to Video Camera Service and Repair. TEST the system for normal operation.
No
REMOVE the jumper wire. GO to J15.
J15 CHECK VIDEO (+) SIGNAL CIRCUIT FOR AN OPEN
- For vehicles without navigation, measure the resistance between the auto-dimming interior mirror C9039-8, circuit VME19 (BN), harness side and the video camera C4357-4, circuit VME19 (BN), harness side.
- For vehicles with navigation, measure the resistance between the ACM (Audio Control Module) C240C-1, circuit VME19 (BN), harness side and the video camera C4357-4, circuit VME19 (BN), harness side.
Are the resistances less than 5 ohms?
Yes
REPAIR circuit RME19 (BN/YE). TEST the system for normal operation.
No
REPAIR circuit VME19 (BN). TEST the system for normal operation.