Step
| Action
| Value(s)
| Yes
| No
|
DEFINITION: The courtesy lights do not turn on when the IP dimmer switch
is in the DOME position. The courtesy lights turn on when any door is open.
|
1
| Was the Interior Lamps System Check performed?
| --
| Go to
Step 2
| Go to
Interior Lamps System Check
|
2
| Was the BCM Diagnostic System Check performed?
| --
| Go to
Step 3
| Go to
Diagnostic System Check - Body Control System
in Body Control System
|
3
|
- Turn the IP dimmer switch to the DOME position.
- Using a test light, backprobe between B+ and the body control
module (BCM) connector C2 terminal C2.
Does the test light illuminate?
| --
| Go to
Step
4
| Go to
Step 5
|
4
|
- Inspect the BCM connector C2 terminal C2 for a poor
terminal contact. Perform repairs as needed.
- If the terminal contact is OK, replace the BCM. Refer to
Body Control Module Replacement
in Body Control System.
Is the repair complete?
| --
| Go to
Step
10
| --
|
5
|
- Disconnect the headlamp switch harness connector.
- Using a test light, probe between B+ and the headlamp switch harness
connector terminal A.
Does the test light illuminate?
| --
| Go to
Step
6
| Go to
Step 7
|
6
|
- Disconnect the BCM connector C2.
- Using a DMM, measure the resistance between the BCM harness connector C2
terminal C2 and the headlamp switch harness connector terminal B.
Is the resistance less than the specified value?
| 2ohms
| Go to
Step 8
| Go to
Step
9
|
7
| Repair the poor connection or an open in circuit 1450.
Is the repair complete?
| --
| Go to
Step
10
| --
|
8
| Replace the headlamp switch assembly. Refer to
Headlamp Switch Replacement
.
Is the repair complete?
| --
| Go to
Step
10
| --
|
9
| Repair the poor connection or an open in circuit 156.
Is the repair complete?
| --
| Go to
Step
10
| --
|
10
|
- Turn the ignition switch to the OFF position.
- Reconnect the connectors and reinstall the components that were
removed.
- Turn the ignition switch to the RUN position for 6 seconds.
- Turn the ignition switch to the OFF position.
- Remove the MALL fuse.
- Turn the ignition switch to the ACC position. (The BCM sounds
the chime a number of times equivalent to the BCM type installed on the vehicle.)
- Within 1 second, turn the ignition switch from the ACC
position, to the OFF position, then back to the ACC position. (The BCM sounds
any DTCs stored.)
Are there any BCM DTCs present?
| --
| Go to
Diagnostic System Check - Body Control System
in Body Control System
| Go to
Interior Lamps System Check
|
