Diagnostic System Check
- Install scan tool. If scan tool powers up, go to next step. If scan tool does not power up, see
SCAN TOOL DOES NOT POWER UP in BODY CONTROL MODULES - PARK AVENUE article.
- Turn ignition on, engine off. Try to establish scan tool 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, see
SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE in BODY CONTROL MODULES - PARK AVENUE article.
- Select display DTC function for DDM. Record all displayed DTCs, status of displayed DTCs and module that set the DTC. If DTCs are displayed, see DIAGNOSTIC TROUBLE CODE INDEX
table. If no DTCs are displayed, see SYMPTOM TESTS
.
DIAGNOSTIC TROUBLE CODE INDEX
| DTC |
Description |
| B2200 |
Left Front Window Switch Stuck In Up Position |
| B2201 |
Left Front Window Switch Stuck In Down Position |
| B2202 |
Right Front Window Switch Stuck In Up Position |
| B2203 |
Right Front Window Switch Stuck In Down Position |
| B2204 |
Left Rear Window Switch Stuck In Up Position |
| B2205 |
Left Rear Window Switch Stuck In Down Position |
| B2206 |
Right Rear Window Switch Stuck In Up Position |
| B2207 |
Right Rear Window Switch Stuck In Down Position |
| B2208 |
Express Window Contact Shorted To Ground |
| B2212 |
Right Front Switch On Left Front Door Stuck In Up Position |
| B2213 |
Right Front Switch On Left Front Door Stuck In Down Position |
| B2214 |
Left Rear Switch On Left Front Door Stuck In Up Position |
| B2215 |
Left Rear Switch On Left Front Door Stuck In Down Position |
| B2216 |
Right Rear Switch On Left Front Door Stuck In Up Position |
| B2217 |
Right Rear Switch On Left Front Door Stuck In Down Position |
| PXXXX |
|
| U1161 |
Loss Of PDM Serial Data |
| U1162 |
Loss Of RDM Serial Data |
| U1170 |
Loss Of Driver Door Switch Assembly Serial Data |
| UXXXX |
|