LO Beams Inoperative
Step
| Action
| Value(s)
| Yes
| No
|
1
| Were you
sent here from the DRL System Check?
| --
|
Go to Step
2
| Go to DRL System Check
|
2
|
- Turn the headlamp switch to the ON position (headlamps on).
- Turn the headlamp dimmer switch to the low beam position.
- Use a DMM and backprobe between C209 terminal L and ground.
- Measure the voltage at C209 terminal L.
Is the voltage within the specified values?
| 10.0-14.0V
|
Go to Step 4
|
Go to Step 3
|
3
| Replace the headlamp switch.
Is the repair complete?
| --
| Go to DRL System Check
| --
|
4
|
- Remove the HDLOBML MiniFuse® #10 from the underhood electrical
center.
- Connect a DMM between the underhood electrical center terminal
A (which is used for the HDLOBML MiniFuse® #10) and ground.
- Turn the headlamp switch to the ON position (headlamps on).
- Turn the headlamp dimmer switch to the low beam position.
- Measure the voltage at the underhood electrical connector terminal
A.
Is the voltage within the specified values?
| 10.0-14.0V
|
Go to Step
8
|
Go to Step 5
|
5
|
- Disconnect the underhood electrical connector C2.
- Connect a DMM between the underhood electrical connector C2 terminal
D3 and ground.
- Turn the headlamp switch to the ON position (headlamps on).
- Turn the headlamp dimmer switch to the low beam position.
- Measure the voltage at the underhood electrical connector C2 terminal
D3.
Is the voltage within the specified values?
| 10.0-14.0V
|
Go to Step 7
|
Go to Step 6
|
6
| Repair the open in CKT 12 between the underhood electrical connector
C2 and connector C209.
Is the repair complete?
| --
| Go to DRL System Check
| --
|
7
| Replace the underhood
electrical center.
Is the repair complete?
| --
| Go to DRL System Check
| --
|
8
|
- Reinstall the HDLOBML MiniFuse® #10 into the underhood electrical
center.
- Connect a DMM between the LF headlamp connector terminal C and
ground.
- Turn the headlamp switch to the ON position (headlamps on).
- Turn the headlamp dimmer switch to the low beam position.
- Measure the voltage at the LF headlamp connector terminal C.
Is the voltage within the specified values?
| 10.0-14.0V
|
Go to Step
9
|
Go to Step 10
|
9
|
- Turn the headlamp switch to the OFF position.
- Connect a DMM between the LF headlamp connector terminal E and
ground.
- Measure CKT 150 for continuity to ground.
Is CKT 150 continuous to ground?
| --
|
Go to Step 12
|
Go to Step 11
|
10
| Repair the open in CKT 712 and CKT 312 between
the underhood electrical center and each of the front low beam headlamps.
Is the repair complete?
| --
| Go
to DRL System Check
| --
|
11
| Repair the open in CKT 150 between each of the front low beam headlamps
and G101/G102.
Is the repair complete?
| --
| Go
to DRL System Check
| --
|
12
| Replace the front low beam headlamp bulbs.
Is the repair complete?
| --
| Go
to DRL System Check
| --
|
