Pinpoint Test

CHECK THE DOOR LATCH FOR BINDING
1. Lock and unlock the inoperative door lock using the door lock rod.
Does the door lock and unlock?
- Yes: GO to 3.
- No: GO to 2 .
CHECK THE LOCK ROD FOR BINDING
1. Operate the door lock rod manually while observing the door lock rod for any binding or if the rod is bent.
Is the door lock rod bent or binding?
- Yes: REPAIR as necessary. TEST the system for normal operation.
- No: INSTALL a new door latch:
  REFER to Front Door Latch , or REFER to Rear Door Latch .

CHECK THE ALL LOCK OUTPUT CIRCUIT FOR VOLTAGE

NOTE: The following step uses a test light to simulate normal circuit loads. Use only the test lamp recommended in the Special Tools table at the beginning of this section or electrical equivalent. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test light probe connection to the vehicle. Do not use the test lamp probe directly on any connector. See Special Tool(s) .

Ignition OFF.
Disconnect Inoperative Door Lock Actuator.

NOTE: The BCM only supplies voltage to the actuator momentarily. It is important to monitor the test light while pressing LOCK on the door lock control switch.

While pressing the door lock control switch in the LOCK position, monitor the test light.

Inoperative Door Lock Actuator			Ground

Inoperative Door Lock Actuator			Ground
Connector-Pin	Circuit	Measurement / Action	Pin	Circuit
C525-4	CPL11 (GY/BN)	Test Light	-	Ground
C609-4	CPL11 (GY/BN)	Test Light	-	Ground
C705-4	CPL11 (GY/BN)	Test Light	-	Ground
C805-4	CPL11 (GY/BN)	Test Light	-	Ground

Does the test light momentarily illuminate?

Yes: GO to 4 .
No: REPAIR the circuit for an open.

CHECK THE UNLOCK OUTPUT CIRCUIT FOR VOLTAGE

NOTE: The BCM only supplies voltage to the actuator momentarily. It is important to monitor the test light while pressing UNLOCK on the door lock control switch.

While pressing the door lock control switch in the UNLOCK position, monitoror the test light.

Inoperative Door Lock Actuator			Ground

Inoperative Door Lock Actuator			Ground
Connector-Pin	Circuit	Measurement / Action	Pin	Circuit
C525-3	CPL51 (BU/GN)	Test Light	-	Ground
C609-3	CPL52 (VT/GY)	Test Light	-	Ground
C705-3	CPL52 (VT/GY)	Test Light	-	Ground
C805-3	CPL52 (VT/GY)	Test Light	-	Ground

Does the test light momentarily illuminate?

Yes: INSTALL a new door latch:
REFER to Front Door Latch , or REFER to Rear Door Latch .
No: GO to 5 .

CHECK THE UNLOCK OUTPUT CIRCUIT FOR AN OPEN

Disconnect BCM C2280D.

Measure:

Inoperative Door Lock Actuator			BCM

Inoperative Door Lock Actuator			C2280D
Connector-Pin	Circuit	Measurement / Action	Pin	Circuit
C525-3	CPL51 (BU/GN)		3	CPL51 (BU/GN)
C609-3	CPL52 (VT/GY)		3	CPL52 (VT/GY)
C705-3	CPL52 (VT/GY)		3	CPL52 (VT/GY)
C805-3	CPL52 (VT/GY)		3	CPL52 (VT/GY)

Is the resistance less than 3 ohms?

Yes: GO to 6 .
No: REPAIR the affected circuit.

CHECK FOR CORRECT BCM OPERATION
1. Ignition OFF.
2. Disconnect all the BCM connectors.
3. Repair:
  - corrosion, (install new connectors or terminals - clean module pins)
  - damaged or bent pins - install new terminals pins
  - pushed-out pins - install new pins as necessary
4. Connect all the BCM connectors and make sure they seat correctly.
5. Operate the system and determine if the concern is still present.
Is the concern still present?
- Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and follow TSB instructions. If no TSBs address this concern, INSTALL a new BCM. REFER to BODY CONTROL MODULE (BCM) - WITHOUT INTELLIGENT ACCESS (IA) .
- No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.