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.
DTC Will Clear When
The PZM determines the voltage at connector C2 terminal D14 is greater than ground for at least 1 monitoring cycle.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Lighting Systems Diagnostic System Check? | -- | Go to Step 2 | |
2 |
Does the test lamp illuminate? | -- | Go to Step 3 | Go to Step 4 |
3 | Test for a short to voltage in CKT 646 (DK GRN) between the reverse relay and the body control module (PZM). Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 6 | Go to Step 5 |
4 | Replace the reverse relay. Did you complete the replacement? | -- | Go to Step 6 | -- |
5 | Replace the Body control module (PZM). Refer to Body Control Module Replacement in Body Control Systems. Did you complete the replacement? | -- | Go to Step 6 | -- |
6 |
Does the DTC reset? | -- | Go to Step 2 | System OK. |
