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). If communication with DDM is established, go to next step. If communication with DDM 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. Record all displayed DTCs and status of displayed DTCs. If DTCs are displayed, perform appropriate test. See DIAGNOSTIC TROUBLE CODE INDEX
table. If no DTCs are displayed, perform system operation check. See SYSTEM OPERATION CHECK
under TROUBLE SHOOTING.
DIAGNOSTIC TROUBLE CODE INDEX
| DTC |
Description |
| B1656 |
EEPROM Write Error |
| B1698 |
Mirror Switch Left Up Input Stuck High |
| B1703 |
Mirror Switch Left Down Input Stuck High |
| B1708 |
Mirror Switch Right Up Input Stuck High |
| B1713 |
Mirror Switch Right Down Input Stuck High |
| B1718 |
Power Fold Switch Stuck High |
| B1982 |
Source Battery Voltage High |
| B1983 |
Source Battery Voltage Low |
| B2240 |
Memory 1 Switch Failed |
| B2241 |
Memory 2 Switch Failed |
| B2242 |
Memory Exit Switch Failed |
| B2243 |
Memory Set Switch Failed |
| U1161 |
Loss Of Right Front Door Module Simple Bus Serial Data |
| U1162 |
Loss Of Left Rear Door Module Simple Bus Serial Data |
| U1163 |
Loss Of Right Rear Door Module Simple Bus Serial Data |
| U1170 |
Loss Of Left Front Door Module Simple Bus Serial Data |
| UXXXX |
|