B1294

DTC B1294

CIRCUIT DESCRIPTION
The power sliding door control module (PSDM) uses the power sliding door (PSD) detent switch to determine when the door is latched, ajar, or open. The detent switch is part of the sliding door rear lock assembly. The detent switch signal circuit is supplied 12 volts through a resistor within the module. The signal circuit is briefly pulled to ground as the door moves from latched to ajar while opening, and from ajar to latched while closing. All PSD circuits are connected to the body harness through the contact plungers, which are mounted to the door, and the contact plate pads, which are mounted to the B-pillar, whenever the plungers and pads are in contact with one another.

DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC B1294 Power Sliding Door Detent Switch Circuit

CONDITIONS FOR SETTING THE DTC
The PSDM does not detect the detent switch signal pulled low between the primary latched and ajar positions while attempting to power open or close.

ACTION TAKEN WHEN THE DTC SETS
The PSDM sets DTC B1294.

CONDITIONS FOR CLEARING THE DTC
When the failure is no longer present and the DTC has been cleared with the scan tool.

DIAGNOSTIC AIDS
- If DTC B1294 is accompanied by DTC B1293, perform the DTC B1293 diagnostic table before performing this table. B1293
- Prior to performing the diagnostic table test steps, inspect the PSD plungers and corresponding B-Pillar pads for the following conditions:
- Proper door plunger operation.
- Clean electrical contact from the door plungers to the B-pillar pads.
- Proper alignment of the door plungers to the B-pillar pads.
- If the ground circuit to the right PSD detent switch is open between splice S320 and body ground G302, the right PSD unlatch actuator and other components may also be inoperative. Other components affected may include the following:
- Right PSD jamb switch
- Power Seats
- Heated Seats
- Right front window and lock switches backlighting
- Right heated mirror, if equipped

TEST DESCRIPTION

Step 1 - Step 11:

Step 12 - Step 14:

The numbers below refer to the step numbers on the diagnostic table.
2. This step determines if the PSD detent switch signal circuit is shorted to ground. If the shorted circuit is within the door itself, the scan tool detent switch parameter will display Active when the door is closed and Inactive when the door is open. If the short is located in the body of the vehicle, the scan tool will display Active at all times. The PSD must be disabled at the multifunction switch in order to prevent the power assist feature from taking control of the door during manual operations.
3. This step determines if the PSDM can recognize the detent switch signal inputs. While the door is open or closed, the detent switch parameter should display Inactive. Then, as the PSD is slowly operated from latched to ajar or ajar to latched, the parameter should briefly display Active
4. This step determines if the detent switch or detent switch signal and ground circuits have a high resistance or are open within the door. The detent switch is connected to the handle mechanism by means of mechanical linkage rods. Turning the handle and holding it to the open position will close the switch contacts in order to facilitate testing.