Power Liftgate Module (PLGM)

B21DD-16-SYSTEM VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD

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

- When Monitored:
Anytime the power liftgate module is awake

- Set Condition:
This is a CAN message that the battery voltage was below 7.3 volts for over 10 seconds.





CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. Turn the ignition on.
2. With the scan tool, read the ENGINE DTCs.

Are there any ENGINE Charging or Battery DTCs present?

Yes

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

No

- This code is for information only. At some time there was a low battery system voltage. Check the battery and charging system.
- Perform the BODY VERIFICATION TEST. Body Verification Test.