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 Eldorado BaseFACTORY OEM SERVICE PROCEDURE
Body Control Module DTCS
BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| B0532 | FUEL LEVEL SENSOR SHORT TO GROUND |
| B0533 | FUEL LEVEL SENSOR SHORT TO BATTERY |
| B1552 | LOSS OF PZM KEEP ALIVE MEMORY (KAM) |
| B1556 | PZM EEPROM WRITE ERROR |
| B1558 | PZM EEPROM CHECKSUM ERROR |
| B1970 | EXTERIOR LIGHT POWER FAULT |
| B1971 | INADVERTENT POWER FAULT |
| B1972 | LOW POWER OUTPUT FAULT |
| B1973 | HIGH POWER CONTROL FAULT |
| B1981 | BATTERY VOLTAGE TOO LOW |
| B1982 | BATTERY VOLTAGE TOO HIGH |
| B1983 | SOURCE VOLTAGE TOO LOW |
| B2470 | DAYTIME RUNNING LIGHTS FAULT |
| B2471 | INTERIOR LIGHTS FAULT |
| B2472 | LOW BEAM OUTPUT FAULT |
| B2473 | HIGH BEAM OUTPUT FAULT |
| B2476 | PARKING LIGHTS OUTPUT FAULT |
| B2477 | REVERSE LIGHT RELAY SHORTED TO GROUND |
| B2478 | REVERSE LIGHT RELAY SHORTED TO BATTERY |
| B2502 | PARK RELAY (BTSI) SHORTED TO GROUND |
| B2503 | PARK RELAY (BTSI) SHORTED TO BATTERY |
| B2550 | STORAGE MODE ENTERED |
| B2719 | UTD - TRUNK TAMPER SWITCH FAULT |
| U1016 | LOSS OF SERIAL COMMUNICATIONS - PCM |
| U1088 | LOSS OF SERIAL COMMUNICATIONS - SDM |
| U1096 | LOSS OF SERIAL COMMUNICATIONS - IPC |
| U1128 | LOSS OF SERIAL COMMUNICATIONS - IRC |
| U1153 | LOSS OF SERIAL COMMUNICATIONS - CCP |
| U1169 | LOSS OF SERIAL COMMUNICATIONS - MMM |
| U1255 | CLASS 2 INITIALIZATION ERROR |
| U1300 | CLASS 2 SHORT TO GROUND |
| U1301 | CLASS 2 SHORT TO BATTERY |
Factory Service Tools
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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.
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