Circuit Description
The body control module (BCM) controls the following courtesy lamps when the door switch is ON and an door is opened:
| • | The instrument panel courtesy lamp, LH |
| • | The instrument panel courtesy lamp, RH |
| • | The inside rear view mirror lamps |
| • | The cargo lamp |
| • | The roof rail reading lamp, LH |
| • | The roof rail reading lamp, RH |
| • | The sunshade lighted vanity mirror lamps, LH |
| • | The sunshade lighted vanity mirror lamps, LH |
The BCM monitors all but the sunshade lighted vanity mirror lamps for a open in the ground circuit.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B1354 Courtesy Lamps Control Circuit Open
Conditions for Running the DTC
Voltage supplied to the module is in the normal operating range, approximately 10-16 volts.
Conditions for Setting the DTC
| • | The BCM detects an open in the controlled ground circuit of the courtesy lamps. |
| • | The condition is present for more then 3 ms. |
Action Taken When the DTC Sets
The BCM stores DTC B1354 in memory.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Interior Lights Dimming Schematics Connector End View Reference: Master Electrical Component List | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 |
Do the courtesy lamps turn ON? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | Test the courtesy lamps control circuit for a open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 5 | Go to Step 4 |
4 | Replace the body control module (BCM). Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 5 | -- |
5 |
Does the DTC reset? | Go to Step 2 | System OK |
