1997 Cadillac Eldorado BaseFACTORY OEM SERVICE PROCEDURE

Anti-Lock Brake System DTCS

ANTI-LOCK BRAKE SYSTEM DTCS

DTC Description
C1211 ABS INDICATOR LIGHT CIRCUIT MALFUNCTION
C1214 SOLENOID VALVE RELAY CONTACT OR COIL CIRCUIT OPEN
C1217 BPMV PUMP MOTOR RELAY CONTACT CIRCUIT OPEN
C1221 LEFT FRONT WHEEL SPEED SENSOR FAULT
C1222 RIGHT FRONT WHEEL SPEED SENSOR FAULT
C1223 LEFT REAR WHEEL SPEED SENSOR FAULT
C1224 RIGHT REAR WHEEL SPEED SENSOR FAULT
C1225 LEFT FRONT WHEEL SPEED SENSOR FAULT
C1226 RIGHT FRONT WHEEL SPEED SENSOR FAULT
C1227 LEFT REAR WHEEL SPEED SENSOR FAULT
C1228 RIGHT REAR WHEEL SPEED SENSOR FAULT
C1232 LEFT FRONT WHEEL SPEED SENSOR CIRCUIT OPEN OR SHORTED
C1233 RIGHT FRONT WHEEL SPEED SENSOR CIRCUIT OPEN OR SHORTED
C1234 LEFT REAR WHEEL SPEED SENSOR CIRCUIT OPEN OR SHORTED
C1235 RIGHT REAR WHEEL SPEED SENSOR CIRCUIT OPEN OR SHORTED
C1236 LOW SYSTEM VOLTAGE
C1237 HIGH SYSTEM VOLTAGE
C1238 BRAKE THERMAL MODEL LIMIT EXCEEDED
C1241 MAGNASTEER CIRCUIT MALFUNCTION
C1242 BPMV PUMP MOTOR GROUND CIRCUIT OPEN
C1243 BPMV PUMP MOTOR STALLED
C1251 RSS STEERING SENSOR DATA MALFUNCTION
C1252 ICCS2 DATA LINK LEFT MALFUNCTION
C1253 ICCS2 DATA LINK RIGHT MALFUNCTION
C1255XX EBTCM INTERNAL MALFUNCTION (ABS/TCS DISABLED)
C1256XX EBTCM INTERNAL MALFUNCTION
C1261 LEFT FRONT HOLD VALVE SOLENOID MALFUNCTION
C1262 LEFT FRONT RELEASE VALVE SOLENOID MALFUNCTION
C1263 RIGHT FRONT HOLD VALVE SOLENOID MALFUNCTION
C1264 RIGHT FRONT RELEASE VALVE SOLENOID MALFUNCTION
C1265 LEFT REAR HOLD VALVE SOLENOID MALFUNCTION
C1266 LEFT REAR RELEASE VALVE SOLENOID MALFUNCTION
C1267 RIGHT REAR HOLD VALVE SOLENOID MALFUNCTION
C1268 RIGHT REAR RELEASE VALVE SOLENOID MALFUNCTION
C1271 LEFT FRONT MASTER CYLINDER ISOLATION VALVE MALFUNCTION
C1272 LEFT FRONT TCS PRIME VALVE MALFUNCTION
C1273 RIGHT FRONT TCS MASTER CYLINDER ISOLATION VALVE MALFUNCTION
C1274 RIGHT FRONT TCS PRIME VALVE MALFUNCTION
C1276 DELIVERED TORQUE SIGNAL CIRCUIT MALFUNCTION
C1277 REQUESTED TORQUE SIGNAL CIRCUIT MALFUNCTION
C1278 TCS TEMPORARILY INHIBITED BY PCM
C1281 ABC SENSORS UNCORRELATED
C1282 YAW RATE SENSOR BIAS CIRCUIT MALFUNCTION
C1283 EXCESSIVE TIME TO CENTER STEERING
C1284 LATERAL ACCELEROMETER SENSOR SELF TEST MALFUNCTION
C1285 LATERAL ACCELEROMETER SENSOR CIRCUIT MALFUNCTION
C1286 STEERING/LATERAL ACCELEROMETER SENSOR BIAS MALFUNCTION
C1287 STEERING SENSOR RATE MALFUNCTION
C1288 STEERING SENSOR CIRCUIT MALFUNCTION
C1291 OPEN BRAKELIGHT SWITCH DURING DECELERATION
C1293 DTC C1291 SET IN CURRENT OR PREVOIUS IGNITION CYCLE
C1294 BRAKELIGHT SWITCH CIRCUIT ALWAYS ACTIVE
C1295 BRAKELIGHT SWITCH CIRCUIT OPEN
C1297 PCM INDICATED EXTENDED TRAVEL BRAKE SWITCH FAILURE
C1298 PCM INDICATED CLASS 2 SERIAL DATA LINK MALFUNCTION
U1016 LOSS OF PCM COMMUNICATIONS
U1056 LOSS OF CVRSS COMMUNICATIONS
U1255 GENERIC LOSS OF COMMUNICATIONS
U1300 CLASS 2 CIRCUIT SHORTED TO GROUND
U1301 CLASS 2 CIRCUIT SHORTED TO VOLTAGE
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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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