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
|
- Enter the body control module (MALL) diagnostic mode.
- Press and hold the power door unlock switch.
- Cycle the headlamps ON and OFF 6 times.
- Release the power door unlock switch.
- The MALL may sound a series of bongs (history codes) upon entering
the diagnostic mode. Refer to
Body Control Module Diagnostic Information
in Body Control Systems.
- Press a door lock switch to the UNLOCK position, then to the LOCK
position.
- Does the MALL sound one bong for each press of the door lock or
unlock switch?
| --
| Go to
Step 4
| Go to
Step 3
|
3
|
- Use a digital multimeter (DMM) in order to backprobe the MALL
connector C1 between terminal A and terminal C.
- Press the door lock switch to the LOCK position.
Does the voltage measure within the specified range?
| 10-15 V
| Go to
Step 8
| Go to
Step 5
|
4
|
- Turn off the ignition switch.
- Disconnect the MALL connector C1.
- Disconnect the left front door lock actuator connector C2.
- Measure the resistance between connector C1 terminal A
and connector C2 terminal A.
Does the resistance measure within the specified range?
| 0-5 ohms
| Go to
Step 6
| Go to
Step 8
|
5
| With the DMM still
connected, press the door lock switch to the UNLOCK position.
Does the voltage measure within the specified range?
| 10-15 V
| Go to
Power Door Locks System Check
| --
|
6
| Replace the MALL. Refer to
Body Control Module Replacement
in Body Control System.
Did you complete the repair?
| --
| Go to
Power Door Locks System Check
| --
|
7
|
- Use a DMM in order to backprobe any door lock actuator connector
between terminal B and ground.
- Press the door lock switch to the LOCK position.
Does the voltage measure within the specified range?
| 10-15 V
| Go to
Step 9
| Go to
Step 8
|
8
| Repair the open
in CKT 295 (GRY). Refer to
Wiring Repairs
in Wiring Systems.
Did you complete the repair?
| --
| Go to
Power Door Locks System Check
| --
|
9
| Repair the open in CKT 694 (TAN). Refer to
Wiring Repairs
in Wiring Systems.
Did you complete the repair?
| --
| Go to
Power Door Locks System Check
| --
|
