Step
| Action
| Value(s)
| Yes
| No
|
1
| Did you perform the Power Door Locks System Check?
| --
| Go to
Step 2
| Go to
Power Door Locks System Check
|
2
|
- Connect a scan tool to the data link connector (DLC).
- Select the body control module (PZM) on the scan tool.
- Move the inoperative door lock switch from the LOCK to the UNLOCK
position.
Does the PZM receive the door lock switch input?
| --
| Go to
Step 3
| Go to
Step 4
|
3
| Replace the PZM. Refer to
Body Control Module Replacement
in Body Control Systems.
Did you complete the repair?
| --
| Go to
Power Door Locks System Check
| --
|
4
|
- Disconnect the inoperative door lock switch connector.
- Test the resistance from the switch connector terminal B
to ground.
Is the resistance within the specified range?
| 0-5 ohms
| Go to
Step 6
| Go to
Step 5
|
5
| Repair the open in one of the following
circuits:
Refer to
Wiring Repairs
in Wiring
Systems.
Did you complete the repair?
| --
| Go to
Power Door Locks System Check
| --
|
6
|
- On the DeVille model, momentarily connect a fused jumper between
the door lock switch connector terminal B and terminal D,
then terminal B and terminal A (front door only).
- On the Eldorado model, momentarily connect a fused jumper between
the door lock switch connector terminal B and terminal C,
then terminal B and terminal A (front door only).
Did the door locks lock, then unlock?
| --
| Go to
Step 8
| Go to
Step 7
|
7
| Repair the open in one of the following circuits:
Refer to
Wiring Repairs
in Wiring
Systems.
Did you complete the repair?
| --
| Go to
Power Door Locks System Check
| --
|
8
|
- Inspect the power door lock switch connector for poor terminal
contact.
- If the contact is OK, replace the power door lock switch. Refer
to
Door Lock Switch Replacement
.
Did you complete the repair?
| --
| Go to
Power Door Locks System Check
| --
|
