Diagnostic System Check
- Install scan tool. If scan tool powers up, go to next step. If scan tool does not power up, perform appropriate diagnostic procedure. See SELF-DIAGNOSTIC SYSTEM in appropriate BODY CONTROL MODULES article.
- Turn ignition on, engine off. Following scan tool manufacturer's instructions, attempt to establish communication with Driver Door Module (DDM) and Powertrain Control Module (PCM). If communication with DDM and PCM is established, go to next step. If communication with DDM and PCM is not established, diagnose communication problem with class 2 device. See SELF-DIAGNOSTIC SYSTEM in appropriate BODY CONTROL MODULES article.
- Select display DTC function for DDM and PCM. Record all displayed DTCs and status of displayed DTCs. If DTCs are displayed, go to next step. If no DTCs are displayed, diagnose by symptom. See SYMPTOM TESTS
.
- Retrieve DTCs and perform appropriate test. See DIAGNOSTIC TROUBLE CODE INDEX
table.
DIAGNOSTIC TROUBLE CODE INDEX
| DTC |
Description |
| B1000, B1004, B1007, B1009, B1327 Or B1328 |
|
| B2757, B2762 Or B2772 |
|
| B3172 |
Right Front Window Up Switch Circuit Low |
| B3177 |
Right Front Window Down Switch Circuit Low |
| B3182 |
Left Rear Window Up Switch Circuit Low |
| B3187 |
Left Rear Window Down Switch Circuit Low |
| B3192 |
Right Rear Window Up Switch Circuit Low |
| B3197 |
Right Rear Window Down Switch Circuit Low |
| B3377 |
Left Front Window Up Switch Circuit Low |
| B3382 |
Left Front Window Down Switch Circuit Low |
| B3387 |
Right Front Window Up Switch Circuit Low, Drivers Door |
| B3392 |
Right Front Window Down Switch Circuit Low, Drivers Door |
| B3397 |
Left Rear Window Up Switch Circuit Low, Drivers Door |
| B3452 |
Left Rear Window Down Switch Circuit Low, Drivers Door |
| B3457 |
Right Rear Window Up Switch Circuit Low, Drivers Door |
| B3462 |
Right Rear Window Down Switch Circuit Low, Drivers Door |
| B3467 |
Left Front Express Down Circuit Low |
| B3472 |
Right Front Express Down Circuit Low |
| B3527 |
Window Lock-Out switch Circuit Low |
| PXXXX |
|
| U1161 |
Loss of PDM Serial Data |
| U1162 |
Loss of LRDM Serial Data |
| U1163 |
Loss of RRDM Serial Data |
| U1170 |
Loss Of Driver Door Switch Assembly Serial Data |
| UXXXX |
|