Diagnostic System Check
WARNING: This page is about a different car, the 2000 Cadillac Seville and 1999 Cadillac Seville. However, it is still accessible from the selected car via links, so may be relevant.
- 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
| DTC |
Description |
| B1656 |
EEPROM Write Error |
| B1982 |
Source/Battery Voltage Too High |
| B1983 |
Source/Battery Voltage Too Low |
| B2200 |
Left Front Window Switch In Master Switch Assembly Stuck In Up Position |
| B2201 |
Left Front Window Switch In Master Switch Assembly 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 |
| B2212 |
Right Front Window Switch In Master Switch Assembly Stuck In Up Position |
| B2213 |
Right Front Window Switch In Master Switch Assembly Stuck In Down Position |
| B2214 |
Left Rear Window Switch In Master Switch Assembly Stuck In Up Position |
| B2215 |
Left Rear Window Switch In Master Switch Assembly Stuck In Down Position |
| B2216 |
Right Rear Window Switch In Master Switch Assembly Stuck In Up Position |
| B2217 |
Right Rear Window Switch In Master Switch Assembly Stuck In Down Position |
| B3203 |
Rear Window Lock-Out Switch Stuck High |
| B3282 |
Right Front Door Express Down Shorted To Ground |
| B3287 |
Left Rear Door Express Down Shorted To Ground |
| B3292 |
Right Rear Door Express Down Shorted To Ground |
| B3467 |
Driver's Door Express Down Shorted To Ground |
| B3472 |
Passenger Door Express Down Shorted To Ground |
| B3477 |
Left Rear Door Express Down Shorted To Ground |
| B3482 |
Right Rear Door Express Down Shorted To Ground |
| 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 Master Switch Assembly Simple Bus Serial Data |
| UXXXX |
|