For 1990-2009 cars only
Circuit Description
The body control module (SBM) controls the courtesy lamps for theater dimming. The SBM fades the lamps by controlling CKT 156.
Conditions for Setting the DTC
The SBM detects a short to ground or an open in CKT 156.
Action Taken When the DTC Sets
| • | DTC B2452 is stored in the SBM memory. |
| • | No driver warning message is displayed for this DTC. |
Conditions for Clearing the DTC
| • | A short to ground is no longer detected by the SBM in CKT 156. |
| • | An open is no longer detected by the SBM in CKT 156. |
| • | A history DTC clears after 50 consecutive ignition cycles if the condition for the fault is no longer present. |
Diagnostic Aids
The following conditions may cause an intermittent malfunction to occur:
| • | An intermittent short to ground in CKT 156 |
| • | An intermittent open in CKT 156 |
| • | A short to ground or an open internally to the SBM |
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Body Control Module Diagnostic System Check ? | -- | Go to Step 2 | |
2 |
Is voltage present? | -- | Go to Step 3 | Go to Step 4 |
3 |
Did you complete the repair? | -- | Go to Step 5 | -- |
4 | Repair the open or a short to ground in CKT 156. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 5 | -- |
5 |
Did you complete the repair? | -- | -- |
