B212A

B212A-PTS DISPLAY SUPPLY VOLTAGE LOW





For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

While the vehicle is in reverse for speeds less than 16km/h (10 mph).

- Set Condition:

Park Assist Sensor Display voltage less than 8.0 volts.





Diagnostic Test

1. CHECK FOR ACTIVE DTC

Turn the ignition on.

Apply the vehicle park brake.

Shift the transmission into Reverse.

With the scan tool, record and erase Park Assist Module DTCs.

Wait 30 seconds.

With the scan tool, read Park Assist Module DTCs.

Is this 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 chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

2. CHECK PARK ASSIST DISPLAY FOR AN INTERNAL SHORT TO GROUND





Turn the ignition off.

Disconnect the Park Assist Display Module harness connector.

Turn the ignition on.

With the scan tool, record and erase Park Assist Module DTCs.

Wait 30 seconds.

With the scan tool, read Park Assist Module DTCs.

Is this DTC still active?

Yes

- Go To 3

No

- Replace the Park Assist Display Module.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

3. CHECK THE (X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT FOR A SHORT GROUND





Using a 12-volt test light connected to 12-volts check the (X777) Park Assist Display Supply circuit.

Does the test light illuminate brightly?

Yes

- Repair the (X777) Park Assist Display Supply circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

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