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 MANUALSBUICK2005LESABRE LIMITED, 4T65E/M15REPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESANTILOCK BRAKE SYSTEM, TRACTION CONTROL SYSTEM & STABILITY CONTROL SYSTEM
2005 Buick LeSabre Limited, 4T65E/M15
Antilock Brake System, Traction Control System & Stability Control System
2005 Buick LeSabre Limited, 4T65E/M15SECTION Antilock Brake System, Traction Control System & Stability Control System
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Anti-Lock Brake System
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Test Drive
- Enhanced Diagnostics
- DTC C1211
- DTC C1214
- DTC C1217
- DTC C1218
- DTC C1221-C1235
- DTC C1236
- DTC C1237
- DTC C1238
- DTC C1242 or C1243
- DTC C1248
- DTC C1254
- DTC C1255 or C1256
- DTC C1261-C1274
- DTC C1276, C1644, or C1689
- DTC C1277 or P0856
- DTC C1278
- DTC C1281, C1283 or C1286
- DTC C1282
- DTC C1284 or C1285
- DTC C1287 or C1288
- DTC C1291 or C1293
- DTC C1294
- DTC C1295
- Symptoms - Anti-Lock Brake System
- ABS Indicator Always On
- ABS Indicator Inoperative
- Traction Off Indicator Always On
- Traction Off Indicator Inoperative
- Vehicle Stability Enhancement System Inoperative
- Vehicle Stability Enhancement System Unwanted Activation
- Vehicle Stability Enhancement System Excessive Brake Pulsation
- Repair Instructions
- Description and Operation
- ABS Description and Operation
- Notes
- Initialization Sequence
- Anti-Lock Brake System
- Pressure Hold
- Pressure Decrease
- Pressure Increase
- Dynamic Rear Proportioning (DRP)
- Traction Control System (TCS) (NW9)
- Vehicle Stability Enhancement System (VSES)
- Brake System Indicator
- ABS Indicators
- Traction Control System Indicator
- Stability System Indicators
- ABS Description and Operation
- Special Tools and Equipment
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Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.