Circuit Description
When the body control module (PZM) receives a class 2 serial data message that the transaxle is in reverse, the PZM energizes the reverse lamp relay and the backup lamps are turned on. When the PZM has commanded the backup lamps on, the voltage at connector C2 terminal D14 is measured every 1000 ms.
Conditions for Setting the DTC
The PZM determines the voltage at connector C2 terminal D14 is not at ground potential for at least 2 seconds.
Actions Taken When the DTC Sets
The PZM continues commanding the requested state until the state is achieved or until the request changes.
Conditions for Clearing the DTC
The PZM determines the voltage at connector C2 terminal D14 is greater than ground for at least one monitoring cycle.
Diagnostic Aids
Inspect CKT 646 (DK GRN) for a short to voltage.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Body Control Module Diagnostic System Check performed? | -- | Go to Step 2 | |
2 |
Is voltage present? | -- | Go to Step 3 | Go to Step 4 |
3 | Repair the short to battery positive voltage in CKT 646 (DK GRN). Is the repair complete? | -- | -- | |
4 | Replace the PZM. Refer to Body Control Module Replacement . Is the repair complete? | -- | -- |
