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.
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HOMESERVICE MANUALSBUICK1999REGAL LSREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESTRACTION CONTROLANTI-LOCK BRAKE SYSTEM - TCS-ETS - DELPHI DBC 7
1999 Buick Regal LS
Anti-Lock Brake System - TCS-ETS - DELPHI DBC 7
1999 Buick Regal LSSECTION Anti-Lock Brake System - TCS-ETS - DELPHI DBC 7
- Description
- Operation
- Component Locations
- Bleeding Brake System
- Diagnosis & Testing
- Symptom Tests
- Notes
- Test A: Abs Indicator Inoperative With No DTCS Set
- Test B: Abs Indicator On With No DTCS Set
- Test C: Low Traction Indicator Always On
- Test D: Low Traction Indicator Inoperative
- Test E: Traction Control Indicator Always Off With No DTC Set
- Test F: Traction Control Indicator Always On With No DTC Set
- Test G: No Communication With EBCM/EBTCM
- Test H: Low Tire Pressure Indicator Always On
- Test I: Low Tire Pressure Indicator Does Not Turn On
- Diagnostic Tests
- Notes
- DTC C1214: Solenoid Valve Relay Contact Or Coil Circuit Open
- DTC C1217: Pump Motor Shorted To Ground
- DTC C1218: Pump Motor Shorted To Voltage
- DTC C1221: Left Front Wheel Speed Sensor Input Signal Equals Zero Or DTC C1225: Left Front Excessive Wheel Speed Variation
- DTC C1222: Right Front Wheel Speed Sensor Input Signal Equals Zero Or DTC C1226: Right Front Excessive Wheel Speed Variation
- DTC C1223: Left Rear Wheel Speed Sensor Input Signal Equals Zero Or DTC C1227: Left Rear Excessive Wheel Speed Variation
- DTC C1224: Right Rear Wheel Speed Sensor Input Signal Equals Zero Or DTC C1228: Right Rear Excessive Wheel Speed Variation
- DTC C1232: Left Front Wheel Speed Sensor Circuit Open Or Shorted
- DTC C1233: Right Front Wheel Speed Sensor Circuit Open Or Shorted
- DTC C1234: Left Rear Wheel Speed Sensor Circuit Open Or Shorted
- DTC C1235: Right Rear Wheel Speed Sensor Circuit Open Or Shorted
- DTC C1236: Low System Voltage
- DTC C1237: High System Voltage
- DTC C1238: Brake Thermal Model Limit Exceeded
- DTC C1242: BPMV Pump Motor Circuit Open
- DTC C1243: BPMV Pump Motor Stalled
- DTC C1245: Low Tire Pressure Detected
- DTC C1247: Low Brake Fluid Detected
- DTC C1254: Abnormal Shutdown Detected
- DTC C1255: EBCM/EBTCM Internal Malfunction Solenoid Malfunction
- DTC C1256: EBCM/EBTCM Internal Malfunction Solenoid Malfunction
- DTC C1261: LF Inlet Valve Solenoid Malfunction
- DTC C1262: LF Outlet Valve Solenoid Malfunction
- DTC C1263: RF Inlet Valve Solenoid Malfunction
- DTC C1264: RF Outlet Valve Solenoid Malfunction
- DTC C1265: LR Inlet Valve Solenoid Malfunction
- DTC C1266: LR Outlet Valve Solenoid Malfunction
- DTC C1267: RR Inlet Valve Solenoid Malfunction
- DTC C1268: RR Outlet Valve Solenoid Malfunction
- DTC C1272: LF TCS Valve Solenoid Malfunction
- DTC C1274: RF TCS Valve Solenoid Malfunction
- DTC C1275: Pcm Requested ETS To Be Disabled
- DTC C1276: Delivered Torque Signal CKT Malfunction
- DTC C1277: Requested Torque Signal CKT Malfunction
- DTC C1278: TCS Temporarily Inhibited By Pcm
- DTC C1291: Open Brake Lamp Switch Contacts During Deceleration
- DTC C1293: DTC C1291 Set In Current Or Previous Ignition Cycle
- DTC C1294: Brake Lamp Switch Circuit Always Active
- DTC C1295: Brake Lamp Switch Circuit Open
- DTC C1298: Pcm Class 2 Serial Data Link Malfunction
- Removal & Installation
- Torque Specifications
- Wiring Diagrams
RENDER: 1.0x
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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.