Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptors
DTC B1292: Power Sliding Door Motor Control CircuitDTC B1293: Power Sliding Door Clutch Control Circuit
DTC B1294: Power Sliding Door Detent Switch Circuit
Diagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Power Sliding Door Module B+ | B1292, B1395 | B1292, B1395 | -- | -- |
Left/Right Sliding Door Open/Close Switch Signal | 2 | 2 | 2 | -- |
Left/Right Door Enable Switch Signal | 1, 2 | -- | 2 | -- |
Left/Right Sliding Door Latch Motor Control | 1 | 1 | 1 | -- |
Park/Neutral Position Park Signal | -- | 1 | -- | -- |
Left/Right Sliding Door Clutch Control | B1292, B1293, B1294 | B1292, B1293, B1294 | B1293 | -- |
Left/Right Sliding Door Motor Open Control | B1292 | B1292 | B1292 | -- |
Left/Right Sliding Door Motor Close Control | B1292 | B1292 | B1292 | -- |
Left/Right Sliding Door Detent Switch Signal | 1 | B1294 | 1 | -- |
Left/Right Sliding Door Sensor Voltage Reference | 1 | B1395 | 1 | -- |
Left/Right Sliding Door Sensor Low Reference | 1 | B1395 | 1 | -- |
Left/Right Sliding Door Sensor 1 Signal | 1 | B1395 | 1 | -- |
Left/Right Sliding Door Sensor 2 Signal | 1 | B1395 | 1 | -- |
Left/Right Sliding Door Clutch Ground | -- | B1292, B1293, B1294 | 1 | -- |
PSDM Ground | -- | 1 | 1 | -- |
1. Power Sliding Door Malfunction 2. Power Sliding Door Open/Close Switch Inoperative | ||||
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 9-16V.
Conditions for Setting the DTC
B1292
| • | An open/high resistance in the B+ circuit terminal 14 |
| • | The PSDM detects a fault in the left/right sliding door motor open control or left/right sliding door motor close control circuit. |
B1293 or B1293, B1294 or B1292, B1293, B1294
The PSDM detects a fault in the left/right sliding door clutch control
B1294
| • | The PSDM detects an open/high resistance in the sliding door detent switch signal circuit for greater than 0.3 seconds |
| • | The DTC will set in history only on power close when PSDM detects an obstacle after Pad/Plunger contact detected without seeing the detent switch become active. |
Action Taken When the DTC Sets
B1292
The power sliding door will be inoperative in the power mode
B1293 or B1293, B1294 or B1292, B1293, B1294
The power sliding door will be inoperative from the power mode and may be difficult to latch while closing in the manual mode.
B1294
| • | The power sliding door will unlatch but not open, motor may continue to run for up to 3 seconds and may be difficult to latch while closing in the manual mode |
| • | The power sliding door will close and immediately re-open and may set B3260 after repeated attempts to close. |
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
DTC B1292, B1293, B1294, B1395, B1420, B3250, B3260 or any combination of these DTCs may be set due to an overcinch condition in which the sliding door motor may continue to run for up to 3 seconds after the door is fully closed. Reference any power sliding door overcinching bulletins first before performing any extensive power sliding door diagnostics.
Reference Information
Schematic Reference
Connector End View Reference
Vehicle Access Connector End Views
Description and Operation
Power Sliding Door (PSD) Description and Operation
Electrical Information Reference
Scan Tool Reference
Circuit/System Verification
- Ignition ON, observe the scan tool PSD Detent Switch parameter while manually opening and closing the power sliding door. The parameter should change from Active to Inactive.
- Command the power sliding door to OPEN and CLOSE with a scan tool. The power sliding door should perform the OPEN and CLOSE function.
| ⇒ | If the value does not change, refer to Sliding Door Detent Switch Malfunction. |
| ⇒ | If the power sliding door malfunctions, refer to Power Sliding Door Malfunction. |
Circuit/System Testing
Sliding Door Detent Switch Malfunction
- Ignition OFF, disconnect the C1 harness connector at the appropriate door contact plate.
- Test for less than 1.0 ohm between the ground circuit terminal C and ground.
- Ignition ON, verify the scan tool PSD Detent Switch parameter is Inactive.
- Install a 3A fused jumper wire between the signal circuit terminal E and ground. Verify the scan tool PSD Detent Switch parameter is Active.
- Ignition OFF, connect the C1 harness connector at the door contact plate. Close the door and disconnect the harness connector at sliding door detent switch.
- Test for less than 1.0 ohm between the ground circuit terminal B and ground.
- Ignition ON, verify the scan tool PSD Detent Switch parameter is Inactive.
- Install a 3A fused jumper wire between the signal circuit terminal A and ground. Verify the scan tool PSD Detent Switch parameter is Active.
- If all circuits test normal, test or replace the sliding door detent switch.
| ⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
| ⇒ | If not the specified value, test the signal circuit terminal E for a short to ground. If the circuit tests normal, replace the PSDM. |
| ⇒ | 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 PSDM. |
| ⇒ | 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. |
| ⇒ | If not the specified value, test the signal circuit terminal A for a short to ground. If the circuit tests normal, replace the door contact plate. |
| ⇒ | 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 door contact plate. |
Power Sliding Door Malfunction
- Ignition OFF, disconnect the C1 harness connector at the appropriate PSDM.
- Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 14 and ground
- Ignition OFF, connect the C1 harness connector and disconnect the C460 inline harness connector.
- Connect a test lamp between the control circuit terminal A and the control circuit terminal B.
- Ignition ON, manually open the sliding door to the mid travel position and command the power sliding door to OPEN and CLOSE with a scan tool. The test lamp should illuminate when commanding the OPEN and CLOSE states.
- Ignition OFF, connect the C460 inline harness connector and disconnect the C2 harness connector.
- Connect a test lamp between the control terminal 7 and the ground terminal 14 at the PSDM.
- Ignition ON, manually open the sliding door to the mid travel position and command the power sliding door to OPEN and CLOSE with a scan tool. The test lamp should illuminate when commanding the OPEN and CLOSE states.
- If all circuits test normal, test or replace the sliding door motor assembly.
| ⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. |
| ⇒ | If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the PSDM. |
| ⇒ | If the test lamp always OFF during the OPEN or CLOSE command, replace the PSDM. |
Component Testing
Clutch
- Ignition OFF, disconnect the C2 harness connector at the appropriate PSDM.
- Install a 15A fused jumper wire between the control circuit terminal 7 and 12V. Momentarily install a jumper wire between the ground circuit terminal 14 and ground. The clutch motor should engage.
- Remove the jumper wires, the clutch should disengage.
| ⇒ | If the function does not perform as specified, replace the sliding door motor assembly. |
| ⇒ | If the function does not perform as specified, replace the sliding door motor assembly. |
Sliding Door Detent Switch
- Ignition OFF, disconnect the harness connector at the appropriate sliding door detent switch.
- Test for infinite resistance between the signal terminal A and the ground terminal B with the switch in the open position.
- Test for less than 2.0 ohms between the signal terminal A and the ground terminal B with the switch in the closed position.
| ⇒ | If not the specified value, replace the sliding door detent switch. |
Cable Motor
- Ignition OFF, disconnect the C2 harness connector at the appropriate PSDM.
- Install a 15A fused jumper wire between the control circuit terminal 1 and 12V. Momentarily install a jumper wire between the control circuit terminal 8 and ground. The cable motor should perform the OPEN or CLOSE function.
- Reverse the jumper wires; the cable motor should perform the CLOSE or OPEN function.
| ⇒ | If the function does not perform as specified, replace the sliding door motor assembly |
| ⇒ | If the function does not perform as specified, replace the sliding door motor assembly. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for PSDM replacement, setup, and programming |
