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 |
|---|---|---|---|---|
DDS B+ | 1 | 1 | -- | -- |
LR Window Switch B+ | 3 | 3 | -- | -- |
PDS B+ | 2 | 2 | -- | -- |
RR Window Switch B+ | 4 | 4 | -- | -- |
LR Window Motor Control | 3 | 3 | 3 | -- |
RR Window Motor Control | 4 | 4 | 4 | -- |
Window Master Switch LR Down Control | B3820 00 | B3820 00 | B3820 00 | -- |
LR Window Master Switch Lockout Control | B3821 00 | B3821 00 | B3821 00 | -- |
RR Window Master Switch Lockout Control | B3824 00 | B3824 00 | B3824 00 | -- |
Window Master Switch LR Up Control | B3819 00 | B3819 00 | B3819 00 | -- |
Window Master Switch RR Down Control | B3823 00 | B3823 00 | B3823 00 | -- |
Window Master Switch RR Up Control | B3822 00 | B3822 00 | B3822 00 | -- |
LR Window Switch Ground | -- | 3 | 3 | -- |
RR Window Switch Ground | -- | 4 | 4 | -- |
1. Driver Window Malfunction 2. Passenger Window Malfunction 3. Left Rear Window Malfunction 4. Right Rear Window Malfunction | ||||
Circuit/System Description
The driver and passenger door lock and side window switches are integrated control module switch assemblies. The driver door switch (DDS) controls the passenger window through a serial data message to the passenger door switch (PDS). When a power window switch is activated in the up or down positions the DDS or PDS supplies power and ground to their respective window motor control circuits to drive the window motor in the required direction.
Reference Information
Schematic Reference
Connector End View Reference
Window Systems Connector End Views
Power Windows Description and Operation
Power Windows Description and Operation
Electrical Information Reference
Scan Tool Reference
Circuit/System Verification
Ignition ON, observe the operation of the driver power window while commanding the window UP and DOWN by using the LF window switch, the driver window should perform the UP and DOWN function.
Circuit/System Testing
- Ignition OFF, disconnect the C1 harness connector at the DDS
- Test for less than 1 ohm between the ground circuit terminal 6 and ground.
- Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 2 and ground.
- Ignition OFF, connect the C1 harness connector at the DDS.
- Ignition ON, observe the scan tool Driver Window Switch parameters while using the LF power window switch. The parameter should change between Off, Up, Down, and Express Down.
- Ignition OFF, disconnect the harness connector at the driver window motor.
- Connect a test lamp between the control circuit terminal A and control circuit terminal B.
- Ignition ON, command the driver window UP and DOWN by using the LF power window switch. The test lamp should turn ON when commanding the UP and DOWN states.
- If all circuits test normal, test or replace the driver window motor.
| ⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
| ⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or open/high resistance |
| ⇒ | If the value does not change, replace the DDS. |
| ⇒ | If the test lamp is always OFF during either of the commands, test for a short to ground or open/high resistance on either control circuit. If the circuits test normal, replace the DDS. |
| ⇒ | If the test lamp is always ON, test for a short to voltage on either control circuit. If the circuits test normal, replace the DDS. |
Component Testing
- Ignition OFF, disconnect the harness connector at the driver window motor.
- Install a 25A fused jumper wire between one of the control terminals and 12V. Momentarily install a jumper wire between the other control terminal and ground. Reverse the jumper wires at least two times, the window motor should perform the UP/DOWN functions.
| ⇒ | If it does not perform as specified, replace the driver window motor. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for DDS replacement, programming, and setup |
