Step
| Action
| Value(s)
| Yes
| No
|
1
|
- Install the scan tool.
- Establish communication with the BCM.
- Check for any current and/or history and/or intermittent DTCs.
Are there any current and/or history and/or intermittent DTCs present?
| --
|
Go to Step 2
|
Go to Step 3
|
2
| Go to Body Control Module to diagnose the problem.
Did you complete the repair?
| --
| System OK
| --
|
3
|
- Turn the head lamp switch to the HEAD position.
- Verify that the low beam headlamps operate properly.
Do the low beam headlamps operate properly when the headlamp switch
is turned to the HEAD position?
| --
|
Go to Step
4
| Go to
Headlamps Inoperative - Low Beams
.
|
4
|
- Turn ON the high beam headlamps.
- Verify that the high beam headlamps operate properly.
- Also verify that the high beam indicator operates properly.
Do the high beam headlamps and the high beam indicator operate properly?
| --
|
Go to Step 6
|
Go to Step 5
|
5
|
- If both of the high beam headlamps are inoperative, go to
Headlamps Inoperative - High Beams
for diagnosis.
- If only the LH high beam headlamp is inoperative, go to
Headlamps Inoperative - Left High Beam
for diagnosis.
- If only the RH high beam headlamp is inoperative, go to
Headlamps Inoperative - Right High Beam
for diagnosis.
- If the high beam indicator is inoperative, go to
High Beam Indicator Inoperative
for diagnosis.
Did you complete the repair?
| --
| Go to
Step 6
| --
|
6
|
- Press and release the FLASH-TO-PASS switch.
- Verify that the FLASH-TO-PASS system operates properly.
Does the FLASH-TO-PASS operate properly?
| --
|
Go to Step 7
| Go to
Headlamps Flash to Pass Inoperative
.
|
7
|
- Start the engine.
- Place the transmission into any gear besides PARK.
- Verify that the daytime running lamps operate properly.
Do the daytime running lamps operate properly?
| --
|
Go to Step 8
| Go to
Daytime Running Lamps (DRL) Headlamps Inoperative
.
|
8
|
- Turn the twilight sentinel switch to the ON position.
- Use a dark cloth in order to cover the headlamp automatic control
ambient light sensor.
- Verify that the twilight sentinel system operates properly.
Does the twilight sentinel system operate properly?
| --
| System OK
| Go to
Twilight Sentinel Inoperative
.
|
