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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1657 (Lighting Systems) >> Diagnostic Information and Procedures >> Hazard Lamps Always On

Hazard Lamps Always On

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 Always On

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 always on.
Do the hazard lamps operate normally?
Go to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS in Wiring Systems Go to Step 3 
3
  1. Disconnect the turn/hazard flasher.
  2. Ensure that the hazard lamp switch is in the OFF position.
  3. Test for a ground signal at the hazard switch signal circuit input terminal of the hazard/turn flasher connector. Refer to CIRCUIT TESTING in Wiring Systems.
Is a ground signal present?
Go to Step 4  Go to Step 5 
4 Test the multifunction turn signal switch hazard switch signal circuit for a short to ground. Refer to CIRCUIT TESTING and WIRING REPAIRS in Wiring Systems.
Did you find and correct a condition?
Go to Step 9  Go to Step 6 
5 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 the condition?
Go to Step 9  Go to Step 7 
6 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 9  Go to Step 8 
7 Replace the hazard/turn flasher. Refer to Hazard and Turn Signal Flasher Replacement .
Did you complete the repair?
Go to Step 9  -
8 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 9  -
9 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 3