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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1799 (Lighting System) >> Diagnostic Information and Procedures >> Low and High Beams Headlamps Inoperative

Low and High Beams Headlamps Inoperative

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Low and High Beams Headlamps Inoperative

Step Action Yes No
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Place the headlamp switch in the HEADLAMP position.
  2. Place the headlamp dimmer switch in the LOW position.
  3. Observe the headlamps.
  4. Place the headlamp dimmer switch in the HIGH position.
  5. Observe the headlamps.
Do both the low and high beam headlamps illuminate?		 Go to Testing for Intermittent Conditions and Poor Connections Go to Step 3 
3 Test the headlamp ground circuit of the headlamp switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 6  Go to Step 4 
4 Inspect for poor connections at the harness connector of the headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?		 Go to Step 6  Go to Step 5 
5 Replace the headlamp switch. Refer to Turn Signal Multifunction Switch Replacement .
Did you complete the replacement?		 Go to Step 6  -
6 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 3 
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