Twilight Sentinel Inoperative

Step	Action	Yes	No
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics Connector End View Reference: Master Electrical Component List
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Do the headlamps and DRL operate properly?	Go to Step 3	Go to Daytime Running Lamps (DRL) Inoperative (Domestic/Canadian) or Daytime Running Lamps (DRL) Inoperative (Norway/Sweden) or Headlamps Inoperative - Low Beams (HID Headlamps) or Headlamps Inoperative - Low Beams (Standard Headlamps)
3	Install a scan tool. Turn ON the ignition, with the engine OFF. Place the headlamp switch in the AUTO position. With a scan tool, observe the Twilight Enable parameter in the instrument panel module (IPM) exterior lamps data list. Does the Twilight Enable parameter display ENABLED?	Go to Step 8	Go to Step 4
4	Turn OFF the ignition. Disconnect the turn signal/multifunction switch C3 harness connector. Connect a 3-amp fused jumper between the turn signal/multifunction switch twilight sentinel display signal circuit at the turn signal/multifunction switch C3 harness connector and the ground circuit of the turn signal/multifunction switch at the C3 harness connector. Turn ON the ignition, with the engine OFF. With a scan tool, observe the Twilight Enable parameter in the IPM exterior lamps data list. Does the Twilight Enable parameter display ENABLED?	Go to Step 7	Go to Step 5
5	Test the turn signal/multifunction switch ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 6
6	Test the twilight sentinel display signal circuit for an open, high resistance, or short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 8
7	Inspect for poor connections at the C3 harness connector of the turn signal/multifunction switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 9
8	Inspect for poor connections at the harness connector of the IPM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 10
9	Replace the turn signal/multifunction switch. Refer to Turn Signal Multifunction Switch Replacement . Did you complete the replacement?	Go to Step 11	-
10	Replace the IPM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	Go to Step 11	-
11	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2