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Hazard Lamps Inoperative

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Hazard Lamps Inoperative

Step Action Yes No
Schematic Reference:  Exterior Lights Schematics  
1 Did you review the Exterior Lighting Systems Description and Operation and perform the necessary inspections? Go to Step 2  Go to Exterior Lighting Systems Description and Operation 
2 Verify that the hazard lamps are inoperative.
Do the hazard lamps operate normally?		 Go to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS in Wiring Systems Go to Step 3 
3 Do the turn signal lamps operate normally? Go to Step 4  Go to Symptoms - Lighting Systems 
4
  1. Disconnect the turn/hazard flasher.
  2. Activate the hazard lamp switch.
  3. Test for a ground signal at the hazard switch signal circuit input terminal of the turn/hazard flasher connector. Refer to CIRCUIT TESTING in Wiring Systems.
Is a ground signal present?		 Go to Step 6  Go to Step 5 
5 Test the multifunction turn signal switch hazard switch signal circuit and ground circuit for an open or high resistance. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
Did you find and correct a condition?		 Go to Step 10  Go to Step 7 
6 Inspect for poor connections at the harness connector of the hazard/turn flasher. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
Did you find and correct a condition?		 Go to Step 10  Go to Step 8 
7 Inspect for poor connections at the harness connector of the multifunction turn signal switch. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
Did you find and correct the condition?		 Go to Step 10  Go to Step 9 
8 Replace the hazard/turn flasher. Refer to Hazard and Turn Signal Flasher Replacement .
Did you complete the repair?		 Go to Step 10  -
9 Replace the multifunction turn signal switch. Refer to MULTIFUNCTION, TURN SIGNAL & HAZARD SWITCH in Steering Wheel and Column.
Did you complete the repair?		 Go to Step 10  -
10 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 3 
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