B1293
DTC B1292, B1293, or B1294
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.
DTC Descriptors
DTC B1292
- Power Sliding Door Motor Control Circuit
DTC B1293
- Power Sliding Door Clutch Control Circuit
DTC B1294
- Power Sliding Door Detent Switch Circuit
Diagnostic Fault Information
Circuit/System Description
The power sliding door control module (PSDM) supplies the power and ground to operate the power sliding door (PSD) motor and clutch. The direction of the motor rotation is determined by which of the control circuits is supplied 12 volts and which is grounded. The PSDM varies the current flow through the motor ground circuit to control the speed of the motor as necessary. The clutch enables the PSD to be operated manually when de-energized, or by the motor when energized.
Conditions for Running the DTC
Battery voltage must be between 9-16 volts.
Conditions for Setting the DTC
B1292
The PSDM detects a short to voltage or short to ground in the left/right sliding door motor open control or left/right sliding door motor close control circuit.
B1293
A PSDM detects a short to voltage in the left/right sliding door clutch control.
B1294
* 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.
* The conditions above must be present for more than 0.3 second.
Action Taken When the DTC Sets
The PSDM will attempt to activate the sliding motor assembly, but the PSD will be inoperative.
Conditions for Clearing the DTC
* This DTC will change from current to history when the fault is no longer present.
* A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
Reference Information
Schematic Reference
Sliding Door Schematics (Sliding Door Schematics)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
Power Sliding Door (PSD) Description and Operation (Description and Operation)
Electrical Information Reference
* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, command the appropriate power sliding door to open and close by pressing the appropriate open/close switch on the overhead console. The power sliding door should open and close as commanded.
If the power sliding door does not open or close, Refer to Power Sliding Door Motor/Clutch Malfunction.
If the power sliding door closes, then re-opens, Refer to Power Sliding Door Detent Switch Malfunction.
Circuit/System Testing
Power Sliding Door Motor/Clutch Malfunction
1. Ignition OFF, disconnect the X2 harness connector at the appropriate PSDM.
2. Ignition ON, test for less than 1 volt between the following control circuits and ground:
* Control circuit terminal 1
* Control circuit terminal 8
* Control circuit terminal 7
* Control circuit terminal 14
• If greater than the specified range, test the appropriate control circuit for a short to voltage.
3. Test for infinite resistance between the following control circuits and ground:
* Control circuit terminal 1
* Control circuit terminal 8
* Control circuit terminal 7
* Control circuit terminal 14
• If not the specified value, test the appropriate control circuit for a short to ground.
4. Install a 40A fused jumper wire between the control circuit terminal 1 and B+. Momentarily install a jumper wire between the control circuit terminal 8 and ground. The motor should move in the OPEN or CLOSE direction.
• If the function does not perform as specified, test both control circuit for an open/high resistance. If the circuits test normal, test or replace the power sliding door motor assembly.
5. Reverse the jumper wires. The motor should move in the OPEN or CLOSE direction.
• If the function does not perform as specified, test or replace the power sliding door motor assembly.
6. Install a 40A fused jumper wire between the control circuit terminal 7 and B+. Momentarily install a jumper wire between the control circuit terminal 14 and ground. The power sliding door clutch should engage.
• If the clutch does not engage, test both control circuit for an open/high resistance. If the circus test normal, test or replace the power sliding door motor assembly.
7. If all circuits test normal, replace the PSDM.
Power Sliding Door Detent Switch Malfunction
1. Ignition OFF, disconnect the harness connector at the sliding door detent switch. Test for less than 1.0 ohm of resistance between the ground circuit terminal C and ground.
2. Test for less than 1 ohm of resistance between the ground circuit terminal B and ground.
• If greater than the specified range, test the ground circuit for an open/high resistance.
3. Close the sliding door and disconnect the X2 harness connector at the door contact plate.
4. Test for less than 1 ohm of resistance between the signal circuit terminal E and ground.
• If greater than the specified range, test the signal circuit for an open/high resistance. If the circuit tests normal, test or replace the sliding door detent switch.
5. Connect the harness connector at door contact plate.
6. Observe the scan tool PSD Detent Switch parameter while opening and closing the sliding door. The parameter should cycle between Active and Inactive
• If the parameter is always Active, test the signal circuit for a short to ground. If the circuit tests normal, replace the BCM.
• If the parameter is always Inactive, test the signal circuit for an open/high resistance or poor contact at the door contact switch. If the circuit and door contact switch test normal, replace the BCM.
Component Testing
Power Sliding Door Motor
1. Ignition OFF, disconnect the X2 harness connector at the PSDM.
2. Install a 40A fused jumper wire between the control circuit terminal 1 and 12 volts. Momentarily install a jumper wire between the control circuit terminal 8 and ground. The motor should move in the OPEN or CLOSE direction.
• If the function does not perform as specified, replace the power sliding door motor assembly.
3. Reverse the jumper wires. The motor should move in the OPEN or CLOSE direction.
• If the function does not perform as specified, replace the power sliding door motor assembly.
Power Sliding Door Detent Switch
1. Ignition OFF, disconnect the harness connector at the sliding door detent switch.
2. Test for infinite resistance between the signal circuit terminal A and the ground circuit terminal B with the switch in the open position.
• If not the specified value, replace the sliding door detent switch.
3. Test for less than 1 ohms between the signal terminal A and the ground terminal B with the switch in the closed position.
• If greater than the specified range, replace the sliding door detent switch.
Power Sliding Door Clutch
1. Ignition OFF, disconnect the X2 harness connector at the PSDM.
2. Install a 40A fused jumper wire between the control circuit terminal 7 and B+. Momentarily install a jumper wire between the control circuit terminal 14 and ground. The power sliding door clutch should engage.
• If the clutch does not engage, replace the power sliding door motor assembly.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Control Module References (Programming and Relearning) for PSDM replacement, programming, and setup
* Power Sliding Door Motor Clutch Replacement (RPO E58) (Service and Repair)Power Sliding Door Motor Clutch Replacement (RPO E59) (Service and Repair)
* Sliding Door Jamb Contact Plate Replacement (Service and Repair)