Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1998 Cadillac Seville SLSFACTORY OEM SERVICE PROCEDURE
BCM DTC Definitions
BCM DTC DEFINITIONS (1)
| Code No. | Circuit Affected | ||
|---|---|---|---|
| B0530 | Fuel Level Sensor Stuck | ||
| B0532 | Fuel Level Sensor Shorted To Ground Or Open | ||
| B0533 | Fuel Level Sensor Feedback Shorted High | ||
| B1007 | EEPROM Write Error | ||
| B1009 | EEPROM Checksum Error | ||
| B1310 | Outside (Ambient) Temperature Sensor Failure | ||
| B1317 | In-Car Air Temperature Sensor | ||
| B1318 | Driver-Side Solar Sensor | ||
| B1321 | A/C Low Side Temperature Sensor | ||
| B1324 | A/C Refrigerant Overpressure | ||
| B1327 | Source/Battery Voltage Low | ||
| B1328 | Source/Battery Voltage High | ||
| B1329 | Passenger-Side Solar Sensor Fault | ||
| B1330 | Left A/C Temperature Sensor | ||
| B1331 | Right A/C Temperature Sensor | ||
| B1332 | Left Heater Temperature Sensor | ||
| B1333 | Right Heater Temperature Sensor | ||
| B1340 | Driver-Side Air Mix Actuator Feedback | ||
| B1341 | Passenger-Side Air Mix Actuator Feedback | ||
| B1343 | Air Inlet Door Movement Fault | ||
| B1344 | HTR/DEF/AC Door Movement Fault | ||
| B1390 | Battery Voltage Sensor Failure | ||
| B1652 | Loss Of Keep Alive Memory (KAM) | ||
| B1656 | EEPROM Write Error | ||
| B1658 | EEPROM Checksum Error | ||
| B1805 | Ignition Switch Problem | ||
| B1982 | Source/Battery Voltage High | ||
| B1983 | Source/Battery Voltage Low | ||
| B2419 | Twilight Photocell Circuit Problem | ||
| B2420 | Twilight Delay Pot Failure | ||
| B2422 | Interior Light Rheostat Failure | ||
| B2510 | Steering Wheel HVAC Control Switches Stuck | ||
| B2511 | Steering Wheel Convenience Control Switches Stuck | ||
| B2512 | Steering Wheel Controls Illegal A/D Values | ||
| U1016 | Loss Of Communications With PCM | ||
| U1040 | Loss Of Communications With ABS | ||
| U1056 | Loss Of Communications With RSS | ||
| U1064 | Loss Of Communications With DIM | ||
| U1065 | Loss Of Communications With IPM | ||
| U1066 | Loss Of Communications With RIM | ||
| U1088 | Loss Of Communications With SDM | ||
| U1096 | Loss Of Communications With IPC | ||
| U1128 | Loss Of Communications With IRC | ||
| U1129 | Loss Of Communications With AMP | ||
| U1160 | Loss Of Communications With DDM | ||
| U1176 | Loss Of Communications With RFA | ||
| U1192 | Loss Of Communications With VTD | ||
| U1255 | Class-II Initialization Error | ||
| U1300 | Class-II BUS Shorted To Ground | ||
| U1301 | Class-II BUS Shorted To Voltage | ||
|
|||
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.