LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2002 >> Century Custom >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Antilock Brake DTCS
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Antilock Brake DTCS

ANTI-LOCK BRAKE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description
DTC B2747 TRACTION CONTROL SWITCH CIRCUIT LOW
DTC C1214 ELECTRONIC BRAKE CONTROL RELAY CONTACT CIRCUIT OPEN
DTC C1216 EBCM COMMANDED PRESSURE RELEASE IS TOO LONG
DTC C1217 PUMP MOTOR SHORTED TO GROUND
DTC C1218 PUMP MOTOR CIRCUIT SHORT TO VOLTAGE OR MOTOR GROUND OPEN
DTC C1221, C1222, C1223, C1224, C1225, C1226, C1227, C1228, C1229, C1232, C1233, C1234, C1235 C1221: LF WHEEL SPEED SENSOR INPUT SIGNAL EQUALS ZERO; C1222: RF WHEEL SPEED SENSOR INPUT SIGNAL EQUALS ZERO; C1223: LR WHEEL SPEED SENSOR INPUT SIGNAL EQUALS ZERO; C1224: RR WHEEL SPEED SENSOR INPUT SIGNAL EQUALS ZERO; C1225: LF EXCESSIVE WHEEL SPEED VARIATION; C1226: RF EXCESSIVE WHEEL SPEED VARIATION; C1227: LR EXCESSIVE WHEEL SPEED VARIATION; C1228: RR EXCESSIVE WHEEL SPEED VARIATION; C1229: SIMULTANEOUS DROP OUT OF FRT. WHL SPD. SIGNALS; C1232: LF WHEEL SPEED CIRCUIT OPEN OR SHORTED: C1233: RF WHEEL SPEED CIRCUIT OPEN OR SHORTED; C1234: LR WHEEL SPEED CIRCUIT OPEN OR SHORTED; C1235: RR WHEEL SPEED CIRCUIT OPEN OR SHORTED
DTC C1236 LOW SYSTEM SUPPLY VOLTAGE
DTC C1237 HIGH SYSTEM VOLTAGE
DTC C1238 BRAKE TEMP STATUS TEMPORARILY EXCEEDED
DTC C1242, C1243 C1243: BPMV PUMP MOTOR GROUND CIRCUIT OPEN; C1243: BPMV PUMP MOTOR STALLED
DTC C1248 DRP DISABLED
DTC C1254 ABNORMAL SHUTDOWN DETECTED
DTC C1255, C1256 C1255: EBTCM INTERNAL MALFUNCTION (ABS/TCS/ICCS DISABLED); C1256: EBTCM INTERNAL MALFUNCTION
DTC C1261, C1262, C1263, C1264, C1265, C1266, C1267, C1268, C1269, C1271, C1272, C1273, C1274 C1261: LF INLET VALVE SOLENOID MALFUNCTION; C1262: LF OUTLET VALVE SOLENOID; C1263: RF INLET VALVE SOLENOID; C1264: RF OUTLET VALVE SOLENOID; C1265: LR INLET VALVE SOLENOID; C1266: LR OUTLET VALVE SOLENOID; C1267: RR INLET VALVE SOLENOID; C1268: RR OUTLET VALVE SOLENOID; C1269: VCM/4WAL VOLTAGE LOW DURING ABS STOP; C1271: LF TCS MASTER CYLINDER ISOLATION VALVE: C1272: LF TCS PRIME VALVE; C1273: RF TCS MASTER CYLINDER ISOLATION VALVE; C1274: RF TCS PRIME VALVE
DTC C1275 PCM SERIAL DATA MALFUNCTION
DTC C1276, P1644, P1689 C1276: DELIVERED TORQUE SIGNAL MALFUNCTION; P1644: DRIVER 1 LINE 4; P1689: TCS DELIVERED TORQUE CONTROL CIRCUIT
DTC C1277, P1571 C1277: REQUESTED TORQUE SIGNAL CIRCUIT MALFUNCTION; P1571: TRACTION CONTROL DESIRED TORQUE SIGNAL
DTC C1278 TCS TEMPORARILY INHIBITED BY PCM (TCS/ETS ONLY)
DTC C1291 OPEN BRAKE LAMP SWITCH CONTACTS DURING DECELERATION
DTC C1294 BRAKE LAMP SWITCH CIRCUIT ALWAYS ACTIVE
DTC C1295 BRAKE LIGHT SWITCH CIRCUIT OPEN