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Headlamps Inoperative - High Beams

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Headlamps Inoperative - High Beams

Step Action Yes No
Schematic Reference:  Headlights/Daytime Running Lights (DRL) Schematics  
Connector End View Reference:  Lighting Systems Connector End Views   or  Body Control System Connector End Views  in Body Control System
1 Did you perform the Lighting Systems Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Lighting Systems 
2
  1. Place the headlamp switch in the ON position.
  2. Place the dimmer switch in the high beam position.
Do the high beam headlamps operate normally?		 Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Is only one high beam headlamp inoperative? Go to Step 4  Go to Step 5 
4 Test the high beam headlamp supply voltage circuit for high resistance, an open or a short to ground. Refer to Circuit Testing andWiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 15  Go to Step 8 
5
  1. Disconnect the headlamp high relay.
  2. Connect a test lamp between the control circuit of the headlamp high relay and the battery positive voltage circuit of the headlamp high relay connector.
Does the test lamp illuminate?		 Go to Step 13  Go to Step 6 
6 Test the headlamp dimmer switch signal and ground circuits for an open or high resistance. Refer to Circuit Testing andWiring Repairs in Wiring Systems.
Did you find and correct a condition?		 Go to Step 15  Go to Step 7 
7
  1. Place the headlamp switch in the HEAD position.
  2. Connect a fused jumper from ground to the headlamp dimmer switch signal terminal of the headlamp dimmer switch connector.
Do the high beam headlamps illuminate?		 Go to Step 9  Go to Step 10 
8 Inspect for poor connections at the harness connector of the inoperative bulb. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 15  Go to Step 11 
9 Inspect for poor connections at the harness connector of the headlamp dimmer switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 15  Go to Step 14 
10 Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 15  Go to Step 12 
11 Replace the high beam bulb. Refer to Headlamp Assembly or Headlamp Bulb Replacement (Old Style) .
Did you complete the replacement?		 Go to Step 15  -
12
IMPORTANT: Perform the setup procedure for the BCM.
Replace the BCM. Refer to Body Control Module Replacement in Body Control System.Did you complete the replacement?		 Go to Step 15  -
13 Replace the high beam headlamp relay. Refer to Relay Replacement (Within an Electrical Center) or Relay Replacement (Attached to Wire Harness) in Wiring Systems.
Did you complete the replacement?		 Go to Step 15  -
14 Replace the headlamp dimmer switch. Refer to Multifunction, Turn Signal Switch Replacement in Steering Wheel and Column.
Did you complete the repair?		 Go to Step 15  -
15 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 3 
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