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 - SEVILLE article.
- Turn ignition on, engine off. Try to establish scan tool communication with Driver Door Module (DDM). If communication with DDM is established, go to next step. If communication with DDM is not established, see SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE in BODY CONTROL MODULES - SEVILLE 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
| Code No. |
Description |
| B2220 |
Driver Door Lock/Unlock Switch Stuck In LOCK |
| B2221 |
Driver Door Lock/Unlock Switch Stuck In UNLOCK |
| B2222 |
Pass. Door Lock/Unlock Switch Stuck In LOCK |
| B2223 |
Pass. Door Lock/Unlock Switch Stuck In UNLOCK |
| B2224 |
Left Rear Door Lock/Unlock Switch Stuck In LOCK |
| B2226 |
Right Rear Door Lock/Unlock Switch Stuck In LOCK |
| U1161, U1162 Or U1170 |
|
| UXXXX |
|