Key In Ignition Warning Chime Inoperative
Step
| Action
| Value(s)
| Yes
| No
|
1
| Were you sent here from the IPC Diagnostic System Check?
| --
|
Go to Step 2
| Go to
Diagnostic System Check - Instrument Cluster
|
2
|
- Turn the ignition switch to the OFF position.
- Install a scan tool.
- Turn the ignition switch to the ON position.
- Attempt to establish communications with the BCM.
Does the scan tool communicate with the BCM?
| --
|
Go to Step 3
| Go to
Diagnostic System Check - Body Control System
|
3
| Using a
scan tool, select IPC special functions and command all IPC chime functions.
Is the scan tool able to operate all chime functions?
| --
|
Go to Step 4
|
Go to Step 12
|
4
| Using a scan tool, select BCM data display and monitor the key-IN-ignition
status with the key IN then OUT of the ignition.
Does the scan tool indicate key-IN-ignition status as ACTIVE with the
key IN the ignition, and INACTIVE with the OUT of the ignition?
| --
| System OK
|
Go to Step 5
|
5
|
- Turn the ignition switch to the OFF position.
- Remove the key from the ignition switch.
- Using a scan tool, select BCM data display and monitor the key-IN-ignition
status.
Does the scan tool indicate the key-IN-ignition status as ACTIVE with
the OUT of the ignition?
| --
|
Go to Step 6
|
Go to Step 7
|
6
|
- Turn the ignition switch to the OFF position.
- Disconnect the ignition switch connector C1.
- Using a scan tool, select BCM data display and monitor the key-IN-ignition
status.
Does the scan tool indicate the key-IN-ignition status as ACTIVE?
| --
|
Go to Step 9
|
Go to Step 11
|
7
|
- At the ignition switch connector C1 (harness side), jumper terminal
D to ground.
- Using a scan tool, select BCM data display and monitor the key-IN-ignition
status.
Does the scan tool indicate the key-IN-ignition status as ACTIVE?
| --
|
Go to Step 8
|
Go to Step 9
|
8
|
- Turn the ignition switch to the OFF position.
- Disconnect the ignition switch connector C2.
- With a test light connected to B+, probe ignition switch connector
terminal E (harness side).
Is the test light ON?
| --
|
Go to Step
11
|
Go to Step
10
|
9
| Locate and repair open or short
to ground in CKT 80.
Was a problem found and repaired?
| --
|
Go to Step
13
|
Go to Step
12
|
10
| Locate and repair open in CKT 150.
Is the circuit repair complete?
| --
|
Go to Step
13
| --
|
11
| Replace the ignition switch. Refer to
Ignition Switch Lock Cylinder Replacement
.
Is the replacement complete?
| --
|
Go to Step
13
| --
|
12
| Replace the IPC assembly. Refer to
Instrument Cluster Replacement
.
Is the replacement complete?
| --
|
Go to Step
13
| --
|
13
|
- Turn OFF the ignition switch.
- Reconnect or install any connectors or components that were disconnected
or removed.
- Turn ON the ignition switch.
Is the repair complete?
| --
| Go to
Diagnostic System Check - Instrument Cluster
| --
|
