Circuit Description
The headlamp switch in the AUTO position provides a ground for the twilight sentinel delay signal circuit. The instrument panel module (IPM) determines the switch position based on the status of the headlamp switch.
Conditions for Running the DTC
The IPM is powered.
Conditions for Setting the DTC
The twilight sentinel delay signal voltage is less than 0.02 volts.
Action Taken When the DTC Sets
Auto status set to ON.
Conditions for Clearing the DTC
The IPM does not detect a voltage that is less than the predetermined value.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics | ||||
1 | Did you perform the Lighting Systems Diagnostic System Check? | -- | Go to Step 2 | |
2 |
Does the scan tool indicate that the Twilight Delay Pot data parameter is more the specified value? | 0.02 V | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the scan tool indicate that the Twilight Delay Pot data parameter is less than the specified value? | 0.02 V | Go to Step 4 | Go to Step 5 |
4 | Test the twilight sentinel delay signal circuit of the twilight delay pot for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 9 | Go to Step 6 |
5 | Inspect for poor connections at the harness connector of the headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 9 | Go to Step 7 |
6 | Inspect for poor connections at the harness connector of the IPM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 9 | Go to Step 8 |
7 | Replace the headlamp switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column. Did you complete the replacement? | -- | Go to Step 9 | -- |
8 |
Important:: Perform the setup procedure for the IPM. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System. Replace the IPM. Refer to Instrument Panel Module Replacement in Body Control System. Did you complete the replacement? | -- | Go to Step 9 | -- |
9 |
Does the DTC reset? | -- | Go to Step 2 | System OK |
