Power Liftgate Module (PLGM)

B21DD-17-SYSTEM VOLTAGE - CIRCUIT VOLTAGE ABOVE 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 system voltage was above 18.4 volts for over 10 seconds.





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

Are there any ENGINE Charging or Battery DTCs present?

Yes

- Testing and Inspection Perform the appropriate diagnostic procedure.

No

- This code is a CAN system message for information only. At some time the battery system was over 18.4 volts. Check the charging system and system grounds.
- Perform the BODY VERIFICATION TEST. Body Verification Test.