Cruze

DTC B297B or B297C

The keyless entry control module receives a discrete input from the driver and passenger door open switch signal circuits. The driver window motor receives a discrete input from the driver door ajar switch signal circuit. The passenger window switch receives a discrete input from the passenger door ajar switch signal circuit. The door open switches and the door ajar switches are integral to each door catch assembly.

The door open switch and the door ajar switch contacts will be open with the door is fully closed, the door switches within the door latch are designed so that the when the door is ajar, the contact in the door ajar switch closes and the window motor will then send a serial data message to the BCM indicating that the door is ajar. When the door is opened further, the contact in the door open switch will then close providing a ground for the door open signal circuit, the keyless entry control module will then detect that the door is open.

Battery voltage is between 9-16 V.

B297B 5A

B297C 5A

B297B 5A

The keyless entry control module ignores the inputs from the driver exterior door handle switch.

B297C 5A

The keyless entry control module ignores the inputs from the passenger exterior door handle switch.

Schematic Reference

Door Lock/Indicator Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Power Door Locks Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, observe the scan tool BCM Driver Door Ajar Switch parameter while opening and closing the driver door. The parameter should change between Active and Inactive.

⇒	If the value does not change, refer to Driver Door Ajar Switch Malfunction.

2. Observe the scan tool BCM Passenger Door Ajar Switch parameter while opening and closing the passenger door. The parameter should change between Active and Inactive.

⇒	If the value does not change, refer to Passenger Door Ajar Switch Malfunction.

Driver Door Ajar Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the A23D door latch assembly - driver.
2. Test for less than 5 Ω between the ground circuit terminal 8 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify the scan tool BCM Driver Door Ajar Switch parameter is Inactive.

⇒	If not the specified value, test the signal circuit terminal 6 for a short to ground. If the circuit tests normal, replace the M74D window motor - driver.

4. Install a 3 A fused jumper wire between the signal circuit terminal 6 and ground. Verify the scan tool BCM Driver Door Ajar Switch parameter is Active.

⇒	If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the M74D window motor - driver.

5. If all circuits test normal, test or replace the A23D door latch assembly - driver.

Passenger Door Ajar Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the A23P door latch assembly - passenger.
2. Test for less than 5 Ω between the ground circuit terminal 3 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify the scan tool BCM Passenger Door Ajar Switch parameter is Inactive.

⇒	If not the specified value, test the signal circuit terminal 1 for a short to ground. If the circuit tests normal, replace the M74P window motor - passenger.

4. Install a 3 A fused jumper wire between the signal circuit terminal 1 and ground. Verify the scan tool BCM Passenger Door Ajar Switch parameter is Active.

⇒	If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the M74P window motor - passenger.

5. If all circuits test normal, test or replace the A23P door latch assembly - passenger.

1. Ignition OFF, disconnect the wiring harness plug at the appropriate A23 door latch assembly.
2. With the switch in the open position, test for infinite resistance between the signal terminal and ground terminal listed below:

•	A23D door latch assembly - driver signal terminal 6 and ground terminal 8

•	A23P door latch assembly - passenger signal terminal 1 and ground terminal 3

⇒	If not the specified value, replace the door catch assembly.

3. With the switch in the closed position, test for less than 5 Ω between the signal terminal and ground terminal listed below:

•	A23D door latch assembly - driver signal terminal 6 and ground terminal 8

•	A23P door latch assembly - passenger signal terminal 1 and ground terminal 3

⇒	If greater than the specified range, replace the A23 door latch assembly.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.