Schematic Reference: Exterior Lights Schematics

Connector End View Reference: Master Electrical Component List in Wiring Systems

1

Did you perform the Lighting Systems Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

1. Turn ON the ignition, with the engine OFF.
2. Observe the hazard lamps.
3. Turn ON the hazard lamps.
4. Turn OFF the hazard lamps.

Did the hazard lamps operate properly?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Turn OFF the hazard lamps.
4. Observe the Hazard Lamp Switch parameter in the dash integration module (DIM) Inputs data list.

Does the Hazard Lamp Switch parameter indicate OFF?

Go to Step 6

Go to Step 4

1. Turn OFF the ignition.
2. Disconnect the hazard switch.
3. Turn ON the ignition, with the engine OFF.
4. With a scan tool, observe the Hazard Lamp Switch parameter.

Does the Hazard Lamp Switch parameter indicate OFF?

Go to Step 7

Go to Step 5

Test the hazard switch output circuit 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 13

Go to Step 9

Test the hazard switch signal circuit 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 13

Go to Step 8

Inspect for poor connections at the harness connector of the hazard 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 13

Go to Step 10

Inspect for poor connections at the harness connector of the turn signal/hazard flasher module. 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 13

Go to Step 11

Inspect for poor connections at the harness connector of the DIM. 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 13

Go to Step 12

Replace the hazard switch. Refer to Hazard Warning Switch Replacement .

Did you complete the replacement?

Go to Step 13

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Replace the turn signal/hazard flasher module. Refer to Hazard and Turn Signal Flasher Replacement .

Did you complete the replacement?

Go to Step 13

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Important: Perform the setup procedure for the DIM.

Replace the DIM. Refer to Dash Integration Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 13

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2