Park Assist Module (PAM)

B21DD-16-SYSTEM VOLTAGE-CIRCUIT VOLTAGE BELOW THRESHOLD

For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
Vehicle in reverse.

During the self-test while vehicle is in drive between 11 mph (18 km/h) and 25 mph (40 km/h).

- Set Condition:
Vehicle System voltage less than 6.5-volts.





1. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. Turn the ignition on.
2. Using the scan tool, read Park Assist Module DTCs.

Does the scan tool display this DTC as 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 the BODY VERIFICATION TEST. Body Verification Test.

2. VERIFY OPERATION OF THE VEHICLE CHARGING SYSTEM

NOTE: Troubleshoot any PCM charging/cranking DTCs before proceeding.

NOTE: Make sure the battery is fully charged.

Are any charging system DTCs present?

Yes

- Testing and Inspection Perform the appropriate charging system or battery diagnostic procedure.

No

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