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. |
Diagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Power Sliding Door Module B+ | B1420 | B1420 | -- | -- |
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 | 1 | 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 Unlatch Actuator Control | B3260 | B3260 | 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 | -- |
Left/Right Sliding Door Unlatch Actuator Ground | -- | B3260 | 1 | -- |
PSDM Ground | -- | 1 | 1 | -- |
1. Power Sliding Door Malfunction 2. Power Sliding Door Open/Close Switch Inoperative | ||||
Circuit/System Description
The left and right power sliding door modules (PSDM) monitor the voltage of the left and right sliding door open/close switch signal circuit in the overhead console multifunction switch and the sliding door open/close switch in the left and right B-pillar. When the door open/close switch is pressed, it provides a ground for the appropriate sliding door open/close switch signal circuit. The corresponding PSDM detects the voltage drop and interprets this as a request to open or close the power sliding door. The door disable switch works in a very similar manner, except when the PSDM detects the voltage drop, it interprets this as a request to disable the appropriate sliding door switch located on the B pillar.
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 Front Control Switch parameters while pressing and releasing the appropriate door open/close switch in the overhead console. The parameter should change between Active and Inactive.
- Observe the scan tool PSD System Enable Switch parameters while pressing and depressing the appropriate door enable/disable switch in the overhead console. The parameter should change between On and Off.
- Observe the scan tool PSD Rear Control Switch parameters while pressing and releasing the appropriate B-pillar sliding door open/close switch. The parameters should change between Active and Inactive.
| ⇒ | If the value does not change, refer to Overhead Console Multifunction Switch Malfunction. |
| ⇒ | If the value does not change, refer to Overhead Console Multifunction Switch Malfunction. |
| ⇒ | If the value does not change, refer to B-pillar Switch Malfunction. |
Circuit/System Testing
Overhead Console Multifunction Switch Malfunction
- Ignition OFF, disconnect the C1 harness connector at the overhead console multifunction switch.
- Test for less than 5 ohms between the ground circuit terminal B and ground.
- Ignition ON, verify the appropriate scan tool PSD System Enable Switch parameter is Inactive.
- Verify the scan tool PSD Front Control Switch parameter is Inactive.
- Install a 3A fused jumper wire between the signal circuit terminal listed below and ground.
- Verify the scan tool PSD System Enable Switch parameter is Active.
- Install a 3A fused jumper wire between the signal circuit terminal listed below and ground.
- Verify the scan tool PSD Front Control Switch parameter is Active.
- If all circuits test normal, test or replace the overhead console multifunction 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 listed below for a short to ground. If the circuit tests normal, replace the PSDM. |
| • | Left door enable/disable terminal D |
| • | Right door enable/disable terminal F |
| ⇒ | If not the specified value, test the signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the PSDM. |
| • | Left door open/close terminal C |
| • | Right door open/close terminal G |
| • | Left door enable/disable terminal D |
| • | Right door enable/disable terminal F |
| ⇒ | 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. |
| • | Left door open/close terminal C |
| • | Right door open/close terminal G |
| ⇒ | 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. |
B-pillar Switch Malfunction
- Ignition OFF, disconnect the harness connector at the appropriate sliding door open/close switch.
- Test for less than 5 ohms between the ground circuit terminal D and ground.
- Ignition ON, verify the scan tool PSD Rear Control Switch parameter is Inactive.
- Install a 3A fused jumper wire between the signal circuit terminal A and ground. Verify the scan tool PSD Rear Control Switch parameter is Active.
- If all circuits test normal, test or replace the sliding door open/close 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 A for a short to ground. If the circuit tests normal, replace the appropriate 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. |
Component Testing
Overhead Console Multifunction Switch
- Ignition Off, disconnect the C1 harness connector at the overhead console multifunction switch.
- Test for infinite resistance between the terminals listed below with the switch in the open position.
- Test for less than 2 ohms between the terminals listed below with the switch in the closed position
| • | Terminal C and terminal B |
| • | Terminal D and terminal B |
| • | Terminal F and terminal B |
| • | Terminal G and terminal B |
| ⇒ | If not the specified value, replace the overhead console multifunction switch. |
| • | Terminal C and terminal B |
| • | Terminal D and terminal B |
| • | Terminal F and terminal B |
| • | Terminal G and terminal B |
| ⇒ | If greater than the specified range, replace the overhead console multifunction switch. |
B-Pillar Switch
- Ignition OFF, disconnect the harness connector at the appropriate sliding door open/close switch.
- Test for infinite resistance between the signal terminal A and the ground terminal D with the switch in the inactive position.
- Test for less than 2 ohms between the signal terminal A and the ground terminal D with the switch in the active position.
| ⇒ | If not the specified value, replace the sliding door open/close switch. |
| ⇒ | If greater than the specified range, replace the sliding door open/close switch. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for PSDM replacement, setup, and programming |
