Step
| Action
| Value(s)
| Yes
| No
|
1
|
- Turn the ignition OFF.
- Roll down the windows.
- Close all of the doors.
- Connect a scan tool.
- Turn the ignition to the ON position.
- Using the scan tool, inspect for any DTCs in the body control
module (BCM).
Does the scan tool show any DTCs?
| --
| Go to
Diagnostic System Check - Body Control System
in Body Controls
|
Go to Step 2
|
2
| Using the scan tool, read the key
in ignition switch status.
Does the scan tool show yes?
| --
|
Go to Step
8
|
Go to Step 3
|
3
|
- Connect a fused jumper wire (back probe) terminal B4 of C201B
to ground.
- Using the scan tool, read the key in ignition switch status.
Does the scan tool show yes?
| --
|
Go to Step
4
|
Go to Step 5
|
4
| Locate and repair CKT 1850 (BLK) for a open between C201B and
ground.
Is the repair complete?
| --
| System OK
| --
|
5
|
- Connect a fused jumper wire (back probe) terminal B3 of C201B
to ground.
- Using the scan tool, read the key in ignition switch status.
Does the scan tool show yes?
| --
|
Go to Step
6
|
Go to Step 7
|
6
| Replace the key in ignition switch. Refer to
Ignition Lock Cylinder Replacement - On Vehicle
in Steering Wheel and Column Tilt.
Is the repair complete?
| --
| System OK
| --
|
7
|
- Locate and repair the open in CKT 80 (LT GRN) between C201B
and the BCM.
- If no open is found, replace the BCM. Refer to
Body Control Module Replacement
in Body Control System.
Is the repair complete?
| --
| System OK
| --
|
8
|
- Open the driver door.
- Using the scan tool, read the driver door jamb switch status.
Does the scan tool show ACTIVE?
| --
|
Go to Step
9
|
Go to Step 10
|
9
| Replace the BCM. Refer to
Body Control Module Replacement
in Body Control System.
Is the repair complete?
| --
| System OK
| --
|
10
|
- Disconnect the LH mini wedge (door jamb switch).
- Connect a fused jumper wire from terminal A or C of C1 to terminal
D.
- Using the scan tool, read the driver door jamb switch status.
Does the scan tool show active?
| --
|
Go to Step
11
|
Go to Step 12
|
11
| Replace the LH mini wedge (door jamb switch). Refer to
Front Side Door Lock Actuator Replacement
in Doors.
Is the repair complete?
| --
| System OK
| --
|
12
|
- Connect a fused jumper wire from terminal A or C of C1 to ground.
- Using the scan tool, read the driver door jamb switch status.
Does the scan tool show active?
| --
|
Go to Step
13
|
Go to Step 14
|
13
| Locate and repair CKT 1850 (BLK) for an open between the switch
and ground.
Is the repair complete?
| --
| System OK
| --
|
14
|
- Locate and repair the open in CKT 126 (TAN) between the
switch and the BCM.
- If no open is found, replace the BCM. Refer to
Body Control Module Replacement
in Body Control Systems.
Is the repair complete?
| --
| System OK
| --
|
