Step
| Action
| Value(s)
| Yes
| No
|
DEFINITION:
Neither door lock switch is able to lock the doors. However, the switches
can unlock the doors.
|
1
| Was the BCM diagnostic system check performed?
| --
| Go to
Step 2
| Go to
Diagnostic System Check - Body Control System
|
2
|
- Ensure that the key is removed from the ignition cylinder.
- Ensure that all the doors are closed.
- Press LOCK on either door lock switch.
Do the doors lock?
| --
| Go to
Step 6
| Go
to
Step 3
|
3
| Use a test lamp in order to backprobe between B+ and the BCM connector C2
terminal C7.
Does the test lamp light?
| --
| Go to
Step
5
| Go to
Step 4
|
4
|
- Leave the test lamp connected from the previous step.
- Press LOCK on either door lock switch while observing the test
lamp.
Does the test lamp light?
| --
| Go to
Step
8
| Go to
Step 7
|
5
|
- Leave the test lamp connected from the previous step.
- Disconnect both door lock switches, one switch at a time.
- Observe the test lamp.
Does the test lamp light?
| --
| Go to
Step
9
| Go to
Step 10
|
6
| Ensure that the lockout prevention feature was not activated while locking
the doors. Refer to
Automatic Door Lock Circuit Description
.
Is the action complete?
| --
| Go to System Diagnostic Check
| --
|
7
| Repair the poor
connection or the open in CKT 195.
Is the repair complete?
| --
| Go to
Step
11
| --
|
8
|
- Inspect the BCM connector C2 terminal C7 for a poor
terminal contact. Repair the terminal contact as needed.
- If connector C2 terminal C7 is OK, replace the BCM.
Refer to
Body Control Module Replacement
in Body Control Systems.
Is the repair complete?
| --
| Go to
Step
11
| --
|
9
| Repair the short to ground in circuit 195.
Is the repair complete?
| --
| Go to
Step
11
| --
|
10
|
- Close the internal contact.
- This causes a ground signal in circuit 194 at all times
(terminal A). Replace the door lock switch. Refer to
Front Side Door Lock Replacement
or
Lock Replacement - Sliding Door Front
in Doors.
| --
| Go to
Step 11
| --
|
11
|
- Turn the ignition switch to the LOCK position.
- Re-install the connectors/components that were removed.
- Turn the ignition switch to the RUN position for 6 seconds.
- Turn the ignition switch to the LOCK position.
- Remove the BCM PRGRM 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.
- Turn the ignition switch from the ACC position to the LOCK position
and then back to the ACC position within 1 second. The BCM sounds any
DTCs stored.
Are there any BCM DTCs present?
| --
| Go to
Diagnostic System Check - Body Control System
| Go to
Automatic Door Locks System Check
|
