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B3260




DTC B3260

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor
DTC B3260
- Power Sliding Door Secondary Latch Circuit

Diagnostic Fault Information






Circuit/System Description

The power sliding door (PSD) latch/unlatch motor/actuator is responsible for latching and unlatching the PSD when the power sliding door control module (PSDM) has received a request to open or close the door. The latch/unlatch motor/actuator receives battery positive voltage from the PSDM via the PSD latch/unlatch motor/actuator control circuit. Ground is supplied to the motor/actuator via G301 for the left side sliding door and G302 for the right side sliding door. The PSDM monitors the voltage on the latch/unlatch motor/actuator control circuit during latching and unlatching operations in order to determine when a failure has occurred.

Conditions for Running the DTC

Battery voltage must be between 9-16 volts.

Conditions for Setting the DTC

The PSD latch/unlatch motor/actuator circuit is open, short to ground, or short to battery while the PSDM is attempting to latch or unlatch the door.

Action Taken When the DTC Sets

The PSDM will attempt to operate the door and stop if the condition is current

Conditions for Clearing the DTC

* The DTC will be current for as long as the fault is present.
* When the fault is no longer present, the DTC will be a history DTC.
* A history DTC will clear after 50 ignition cycles.

Diagnostic Aids

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

Reference Information
Schematic Reference

Sliding Door Schematics Sliding Door Schematics
Connector End View Reference

Component Connector End Views
Description and Operation

Power Sliding Door (PSD) Description and Operation Description and Operation
Electrical Information Reference

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Circuit Testing Circuit Testing
* Wiring Repairs Wiring Repairs
* Connector Repairs Connector Repairs

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

Ignition ON, command the appropriate power sliding door to UNLATCH with a scan tool. The power sliding door should perform the UNLATCH function.

Circuit/System Testing

1. Ignition OFF, disconnect the X1 harness connector at the appropriate door contact plate.
2. Test for less than 1 ohm between the ground circuit terminal D and ground.

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

3. Connect a test lamp between the control circuit terminal G and ground.
4. Ignition ON, command the sliding door unlatch actuator to UNLATCH with a scan tool. The test lamp should illuminate while commanding the UNLATCH state.

• If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal replace the PSDM.

• If the test lamp is always OFF, test the control circuit for a short to ground or and open/high resistance. If the circuit tests normal, replace the PSDM.

5. Ignition OFF, reconnect the harness connector X1 at the door contact plate. Close the sliding door and disconnect the harness connector at sliding door unlatch actuator.
6. Test for less than 1.0 ohm between the ground circuit terminal A and ground.

• If greater than the specified range, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the door contact plate.

7. Connect a test lamp between the control circuit terminal B and ground.
8. Ignition ON, command the sliding door unlatch actuator to UNLATCH with a scan tool. The test lamp illuminate while commanding the UNLATCH state.

• If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the door contact plate.

• If the test lamp is always OFF, test the control circuit for a short to ground or and open/high resistance. If the circuit tests normal, replace the door contact plate.

9. If all circuits test normal, test or replace the sliding door unlatch actuator.

Component Testing

1. Ignition OFF, disconnect the harness connector at appropriate sliding door unlatch actuator.
2. Install a 15 A fused jumper wire between the control terminal B and 12 volts, install a jumper wire between the ground terminal A and ground. The sliding door unlatch actuator should perform the UNLATCH function.

• If the function does not perform as specified, replace the sliding door unlatch actuator.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

* Power Sliding Door Unlatch Actuator Replacement Service and Repair
* Sliding Door Jamb Contact Plate Replacement Service and Repair
* Control Module References Control Module References for PSDM replacement, programming, and setup

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