Schematic Reference: Exterior Lights Schematics

DEFINITION: Hazard lamps are inoperative. Turn signal lamps may also be inoperative.

Did you perform the Lighting System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

1. Turn ON the ignition, with the engine OFF.
2. Place the hazard lamp switch to the ON position.

Do all of the turn signal tamps flash on and off?

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

Go to Step 3

1. Disconnect the turn/hazard-headlamp switch.
2. Probe the hazard flasher signal circuit of the turn/hazard-headlamp switch with a test lamp that is connected to a good ground.

Does the test lamp illuminate and flash?

Go to Step 7

Go to Step 4

1. Disconnect the turn/hazard-flasher.
2. Probe the battery positive voltage circuit of the turn/hazard-flasher with a test lamp that is connected to a good ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 9

Connect a test lamp between the battery positive voltage circuit of the turn/hazard-flasher and the ground circuit of the turn/hazard-flasher.

Does the test lamp illuminate?

Go to Step 6

Go to Step 10

Test for an open, high resistance, or short to ground in the hazard flasher signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 7

Inspect for poor connections at the harness connector of the turn/hazard-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 13

Go to Step 11

Inspect for poor connections at the harness connector of the turn/hazard-flasher. 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

Repair an open, high resistance, or short to ground in the battery positive voltage circuit of the turn/hazard-flasher. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 13

--

Repair an open or high resistance in the ground circuit of the turn/hazard-flasher. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 13

--

Replace the turn hazard headlamp switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column - Standard or Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column - Tilt.

Did you complete the replacement?

Go to Step 13

--

Replace the turn/hazard-flasher.

Did you complete the replacement?

Go to Step 13

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3