Step
| Action
| Value(s)
| Yes
| No
|
1
| Was the Audible Warning System Check performed?
| --
|
Go to Step 2
| Go to
Audible Warnings System Check
.
|
2
|
- Disconnect the headlamp switch connector.
- Use the DMM to measure the voltage between terminal 17 of the
headlamp switch connector and a known good ground.
Is the measured voltage within the specified value?
| B+
|
Go to Step 4
|
Go to Step
3
|
3
|
- Locate an open or a high resistance in circuit A5.
- Repair the open or the high resistance in circuit A5.
Is the repair complete?
| --
|
Go to Step
11
| --
|
4
|
- Turn the ignition switch to the ON position.
- Use the DMM to measure the voltage between terminal 3 of the headlamp
switch connector and a known good ground.
Is the measured voltage within the specified range?
| B+
|
Go to Step 6
|
Go to Step
5
|
5
|
- Locate an open or a high resistance in circuit X22.
- Repair the open or the high resistance in circuit X22.
Is the repair complete?
| --
|
Go to Step
11
| --
|
6
| Use the DMM to measure the resistance between 13 of the headlamp switch
connector and a known good ground.
Is the measured resistance within the specified range?
| Less than 5 ohms
|
Go to Step 8
|
Go to Step 7
|
7
|
- 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
| --
|
8
|
- Open the LH front side door.
- Use the DMM to measure the resistance between terminal 18 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 10
|
Go to Step 9
|
9
|
- Locate an open or a high resistance in circuits RM1 and/or RM2.
- Repair the open or the high resistance in circuits RM1 and/or
RM2.
- If these circuits are OK, replace the LH front side door jamb
switch. Refer to Doors.
Is the repair or replacement complete?
| --
|
Go to Step 11
| --
|
10
| Replace the headlamp switch. Refer to
Headlamp Switch Replacement
in Lighting Systems.
Is the replacement complete?
| --
|
Go to Step
11
| --
|
11
|
- Connect all connectors and components that were disconnected.
- Verify that the lights-on warning operates properly.
Does the lights-on warning operate properly?
| --
| System OK
|
Go to Step 1
|
