GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Oldsmobile
🢒
1998
🢒
Aurora
🢒
Brakes
🢒 Antilock Brake System
Brakes
All Component Locator
ABS Components
Antilock Brake System Component Views
All Description and Operation
Abbreviations and Definitions
ABS/TCS System Description
ABS/TCS System Operation
Basic Knowledge Required
General System Description
Service Precautions
All Special Tools and Equipment
Special Tools
All Visual Identification
Antilock Brake System Connector End Views
Cleaning, Inspection, and Adjustment
Antilock Brake System Automated Bleed Procedure
Diagnostic Procedures
ABS Indicator Always On
ABS Indicator Inoperative
No Communication with Electronic Brake Control Module/Electronic Brake and Traction Control Module
Traction Active Indicator Not Operating Properly
Traction Off Indicator Always On
Traction Off Indicator Inoperative
Diagnostic Trouble Codes
DTC C1211 Valve Supply Voltage Interruption
DTC C1215 Suspect Valve Malfunction
DTC C1221 RF Wheel Speed Sensor Circuit Open or Shorted
DTC C1222 RF Wheel Speed Sensor Signal Intermittent
DTC C1223 RF Wheel Speed Sensor Signal Missing
DTC C1225 LF Wheel Speed Sensor Circuit Open or Shorted
DTC C1226 LF Wheel Speed Sensor Signal Intermittent
DTC C1227 LF Wheel Speed Sensor Signal Missing
DTC C1231 RR Wheel Speed Sensor Circuit Open or Shorted
DTC C1232 RR Wheel Speed Sensor Signal Intermittent
DTC C1233 RR Wheel Speed Sensor Signal Missing
DTC C1235 RR Wheel Speed Circuit Open or Shorted
DTC C1236 LR Wheel Speed Sensor Signal Intermittent
DTC C1237 LR Wheel Speed Sensor Signal Missing
DTC C1241 RF Inlet Valve Circuit Malfunction
DTC C1242 RF Outlet Valve Circuit Malfunction
DTC C1244 RF Isolation Valve Circuit Malfunction
DTC C1245 LF Inlet Valve Circuit Malfunction
DTC C1246 LF Outlet Valve Circuit Malfunction
DTC C1248 LF Isolation Valve Circuit Malfunction
DTC C1251 RR Inlet Valve Circuit Malfunction
DTC C1252 RR Outlet Valve Circuit Malfunction
DTC C1255 LR Inlet Valve Circuit Malfunction
DTC C1256 LR Outlet Valve Circuit Malfunction
DTC C1261 Pump Motor Run Malfunction
DTC C1262 Pump Pressure Malfunction During ABS Stop
DTC C1271 EBCM/EBTCM Internal Malfunction
DTC C1272 Brake Travel Switch Circuit Malfunction
DTC C1273 BPMV Fluid Level Switch Circuit Malfunction
DTC C1274 BPMV Pressure Switch Circuit Malfunction
DTC C1275 PCM Requested TCS to Be Disabled
DTC C1276 Serial Data Malfunction
DTC C1277 Delivered Torque Signal Circuit Malfunction
DTC C1278 Requested Torque Signal Circuit Malfunction
DTC C1281 Brake Thermal Model Limit Exceeded
Electrical/Electronic Schematic Diagrams
ABS Schematic References
ABS/TCS Schematics
Antilock Brake System Schematic Icons
General Diagnostic Information
Clearing DTCs
Diagnostic System Check
Diagnostic Trouble Code (DTC) List
Displaying Diagnostic Trouble Codes (DTC)
Electromagnetic Interference
Intermittents and Poor Connections
Scan Tool Diagnostics
Self-Diagnostics
Mechanical Specifications
Fastener Tightening Specifications
Removal, Installation, and Replacement
Antilock Diode Replacement
Brake Pressure Modulator Valve Block Replacement
Brake Pressure Modulator Valve Bracket Replacement
Brake Pressure Modulator Valve Replacement
Brake Pressure Modulator Valve Reservoir Replacement
Electronic Brake and Traction Control Module Replacement
Electronic Traction Control Switch Replacement