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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 90 (Lighting Systems) >> Diagnostic Information and Procedures >> Hazard Lamps Inoperative

Hazard Lamps Inoperative

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. 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 
Connector End View Reference: Master Electrical Component List in Wiring Systems
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2 Place the hazard switch to the ON position.
Do the hazard lamps turn ON?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3
  1. Disconnect the driver information center (DIC)/hazard switch.
  2. Install a fused jumper between the hazard switch signal circuit and the ground circuit.
Do the hazard lamps illuminate?
Go to Step 8  Go to Step 4 
4 Using a test lamp connected to battery positive voltage, probe the ground circuit of the hazard switch.
Does the test lamp illuminate?
Go to Step 5  Go to Step 6 
5 Test the hazard warning switch signal circuit for an open, a poor connection or a short to battery positive voltage. 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 Repair a poor connection, an open or a short to battery positive voltage in the hazard warning switch ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 9  -
7 Replace the body control module (BCM). Refer to Control Module References in Computer/Integrating Systems for replacement, setup and programming.
Did you complete the replacement?
Go to Step 9  -
8 Replace the DIC/hazard switch. Refer to Driver Information Center Switch Replacement in Instrument Panel, Gages and Console.
Is the repair complete?
Go to Step 6  -
9 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 3