Chime/Buzzer

9084-LOSS COMMUNICATION WITH LEFT OUTSIDE MIRROR WARNING ELEMENT





For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
With the ignition on. Vehicle in Reverse, Neutral, or Drive.

- Set Condition:
The Park Assist Module lost communication with the Rear Park Assist Display.





Diagnostic Test

1. CHECK FOR ACTIVE DTC
Turn the ignition on.
With the scan tool, read DTCs.
Is the DTC active?

Yes

- Go To 2

No

- The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.

2. CHECK VOLTAGE OF REAR PARK ASSIST DISPLAY SUPPLY CIRCUIT




Disconnect the Left Outside Rearview Mirror.
Measure the voltage of the Rear Park Assist Display Supply circuit.
Is the voltage present?

Yes

- Go To 5

No

- Go To 3

3. REAR PARK ASSIST DISPLAY SUPPLY CIRCUIT OPEN




Turn the ignition off.
Disconnect the Park Assist Module C1 harness connector.
Measure the resistance of the Rear Park Assist Display Supply circuit between the Park Assist Module C1 and Rear Park Assist Display harness connectors.
Is the resistance above 10K ohms?

Yes

- Repair the Rear Park Assist Display Supply circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests

No

- Go To 4

4. REAR PARK ASSIST DISPLAY SUPPLY CIRCUIT SHORT TO GROUND




Measure the resistance between ground and the Rear Park Assist Display Supply circuit.
Is the resistance below 10K ohms?

Yes

- Repair the Rear Park Assist Display Supply circuit for a short to ground.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests

No

- Replace the Park Assist Module.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests

5. REAR PARK ASSIST DISPLAY GROUND CIRCUIT




Turn the ignition off.
Measure the resistance between ground and the Rear Park Assist Display Ground circuit at the Rear Park Assist Display harness connector.
Is the resistance below 10K ohms.

Yes

- Go To 7

No

- Go To 6

6. REAR PARK ASSIST DISPLAY GROUND CIRCUIT OPEN




Disconnect the Park Assist Module C1 harness connector.
Measure the resistance of the Rear Park Assist Display Ground circuit
Is the resistance below 10K ohms?

Yes

- Repair the Rear Park Assist Display Ground circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests

No

- Replace the Park Assist Module.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests

7. REAR PARK ASSIST DISPLAY SIGNAL CIRCUIT




Measure the voltage of the Rear Park Assist Display Signal circuit.
Is there voltage present?

Yes

- Replace the Left Outside Rearview Mirror.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests

No

- Go To 8

8. REAR PARK ASSIST DISPLAY SIGNAL CIRCUIT OPEN




Disconnect the Park Assist Module C1 harness connector.
Measure the resistance of the Rear Park Assist Display Signal circuit.
Is the resistance below 10K ohms?

Yes

- Replace the Park Assist Module.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests

No

- Repair the Rear Park Assist Display Signal circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests