Step
| Action
| Value(s)
| Yes
| No
|
1
| Did you perform the Headlight Diagnostic System Check?
| --
|
Go to Step 2
| Go to
Headlight System Check
.
|
2
|
- Disconnect the headlamp switch connector.
- Use the DMM to measure the resistance between terminal 13 of the
headlamp switch connector and a known good ground.
Is the measured resistance within the specified value?
| Less than 5 ohms
|
Go to Step 4
|
Go to Step 3
|
3
|
- Locate an open or a high resistance in circuit F18.
- Repair the open or the high resistance in circuit F18.
Is the repair complete?
| --
|
Go to Step
11
| --
|
4
|
- Connect the headlamp switch connector.
- Disconnect the BCM connector C2.
- Turn the headlamp switch to the HEAD position.
- Use the DMM to measure the resistance between terminal D10 of
the BCM connector C2 and a known good ground.
Is the measured resistance within the specified value?
| Less than 5 ohms
|
Go to Step 6
|
Go to Step 5
|
5
|
- Locate an open or a high resistance in circuits B899 and/or B60.
- Repair the open or the high resistance in circuits B899 and/or
B60.
- Replace the headlamp switch if these circuits are OK. Refer to
Headlamp Switch Replacement
in
Instrument Panel, Gauges and Console.
Is the repair or replacement complete?
| --
|
Go to Step 11
| --
|
6
|
- Disconnect the low beam relay K131 connector.
- Use the DMM to measure the voltage between terminal 5 of the low
beam relay K131 connector and a known good ground.
Is the measured voltage within the specified value?
| B+
|
Go to Step 8
|
Go to Step 7
|
7
|
- Locate an open or a high resistance in circuit A814.
- Repair the open or the high resistance in circuit A814.
Is the repair complete?
| --
|
Go to Step
11
| --
|
8
| Connect a fused jumper between terminals 4 and 5 of the low beam relay
K131 connector.
Do the low beam headlamps turn ON?
| --
|
Go to Step
10
|
Go to Step 9
|
9
|
- Locate an open or a high resistance in circuit B50.
- Repair the open or the high resistance in circuit B50.
Is the repair complete?
| --
|
Go to Step
11
| --
|
10
| Replace the low beam relay K131.
Is the replacement complete?
| --
|
Go to Step
11
| --
|
11
|
- Connect all of the connectors and components that were disconnected.
- Verify that the low beam headlamps operate properly.
Do the low beam headlamps operate properly?
| --
| Go to
Headlight System Check
|
Go to Step 1
|
