DTC C1214 Brake Control Relay Contact Circuit Open
DTC C1215 Brake Control Relay Contact Circuit Active
DTC C1216 Brake Control Relay Coil Circuit Open
DTC C1217 Brake Control Relay Coil Circuit Short to Ground
DTC C1218 Brake Control Relay Coil Circuit Short to Voltage
DTC C1221 LF Wheel Speed Sensor Input Signal is 0
DTC C1222 RF Wheel Speed Sensor Input Signal is 0
DTC C1223 LR Wheel Speed Sensor Input Signal is 0
DTC C1224 RR Wheel Speed Sensor Input Signal is 0
DTC C1225 LF Excessive Wheel Speed Variation
DTC C1226 RF Excessive Wheel Speed Variation
DTC C1227 LR Excessive Wheel Speed Variation
DTC C1228 RR Excessive Wheel Speed Variation
DTC C1232 LF Wheel Speed Circuit Open or Shorted
DTC C1233 RF Wheel Speed Circuit Open or Shorted
DTC C1234 LR Wheel Speed Circuit Open or Shorted
DTC C1235 RR Wheel Speed Circuit Open or Shorted
DTC C1236 Low System Supply Voltage
DTC C1237 High System Supply Voltage
DTC C1238 Left Front ESB Does Not Hold Motor
DTC C1241 Right Front ESB Does Not Hold Motor
DTC C1242 Rear ESB Does Not Hold Motor
DTC C1244 Left Front ABS Channel Does Not Move
DTC C1245 Right Front ABS Channel Does Not Move
DTC C1246 Rear ABS Channel Does Not Move
DTC C1247 Left Front ABS Motor Free Spins
DTC C1248 Right Front ABS Motor Free Spins
DTC C1251 Rear ABS Motor Free Spins
DTC C1252 LF ABS Channel in Release Too Long
DTC C1253 RF ABS Channel in Release Too Long
DTC C1254 Rear ABS Channel in Release Too Long
DTC C1255 EBCM Internal Malfunction
DTC C1256 Left Front ABS Motor Circuit Open
DTC C1257 LF ABS Motor Circuit Shorted to Ground
DTC C1258 LF ABS Motor Circuit Shorted to Voltage
DTC C1261 Right Front ABS Motor Circuit Open
DTC C1262 RF ABS Motor Circuit Shorted to Ground
DTC C1263 RF ABS Motor Circuit Shorted to Voltage
DTC C1264 Rear ABS Motor Circuit Open
DTC C1265 Rear ABS Motor Circuit Shorted to Ground
DTC C1266 Rear ABS Motor Circuit Shorted to Voltage
DTC C1276 LF Solenoid Circuit Open or Short to Ground
DTC C1277 LF Solenoid Circuit Shorted to Voltage
DTC C1278 RF Solenoid Circuit Open or Shorted to Ground
DTC C1281 RF Solenoid Circuit Shorted to Voltage
DTC C1282 Calibration Malfunction
DTC C1286 EBCM Turned On Brake Warning Indicator
DTC C1291 Open Brake Lamp Switch Contacts During Deceleration
DTC C1292 Open Brake Lamp Switch When ABS Was Required
DTC C1293 DTC C1291/C1292 Set in Current or Previous Ignition Cycle
DTC C1294 Brake Lamp Switch Circuit Always Active
DTC C1295 Brake Lamp Switch Circuit Open
DTC C1215 Brake Control Relay Contact Circuit Active
DTC C1216 Brake Control Relay Coil Circuit Open
DTC C1217 Brake Control Relay Coil Circuit Short to Ground
DTC C1218 Brake Control Relay Coil Circuit Short to Voltage
DTC C1221 LF Wheel Speed Sensor Input Signal is 0
DTC C1222 RF Wheel Speed Sensor Input Signal is 0
DTC C1223 LR Wheel Speed Sensor Input Signal is 0
DTC C1224 RR Wheel Speed Sensor Input Signal is 0
DTC C1225 LF Excessive Wheel Speed Variation
DTC C1226 RF Excessive Wheel Speed Variation
DTC C1227 LR Excessive Wheel Speed Variation
DTC C1228 RR Excessive Wheel Speed Variation
DTC C1232 LF Wheel Speed Circuit Open or Shorted
DTC C1233 RF Wheel Speed Circuit Open or Shorted
DTC C1234 LR Wheel Speed Circuit Open or Shorted
DTC C1235 RR Wheel Speed Circuit Open or Shorted
DTC C1236 Low System Supply Voltage
DTC C1237 High System Supply Voltage
DTC C1238 Left Front ESB Does Not Hold Motor
DTC C1241 Right Front ESB Does Not Hold Motor
DTC C1242 Rear ESB Does Not Hold Motor
DTC C1244 Left Front ABS Channel Does Not Move
DTC C1245 Right Front ABS Channel Does Not Move
DTC C1246 Rear ABS Channel Does Not Move
DTC C1247 Left Front ABS Motor Free Spins
DTC C1248 Right Front ABS Motor Free Spins
DTC C1251 Rear ABS Motor Free Spins
DTC C1252 LF ABS Channel in Release Too Long
DTC C1253 RF ABS Channel in Release Too Long
DTC C1254 Rear ABS Channel in Release Too Long
DTC C1255 EBCM Internal Malfunction
DTC C1256 Left Front ABS Motor Circuit Open
DTC C1257 LF ABS Motor Circuit Shorted to Ground
DTC C1258 LF ABS Motor Circuit Shorted to Voltage
DTC C1261 Right Front ABS Motor Circuit Open
DTC C1262 RF ABS Motor Circuit Shorted to Ground
DTC C1263 RF ABS Motor Circuit Shorted to Voltage
DTC C1264 Rear ABS Motor Circuit Open
DTC C1265 Rear ABS Motor Circuit Shorted to Ground
DTC C1266 Rear ABS Motor Circuit Shorted to Voltage
DTC C1276 LF Solenoid Circuit Open or Short to Ground
DTC C1277 LF Solenoid Circuit Shorted to Voltage
DTC C1278 RF Solenoid Circuit Open or Shorted to Ground
DTC C1281 RF Solenoid Circuit Shorted to Voltage
DTC C1282 Calibration Malfunction
DTC C1286 EBCM Turned On Brake Warning Indicator
DTC C1291 Open Brake Lamp Switch Contacts During Deceleration
DTC C1292 Open Brake Lamp Switch When ABS Was Required
DTC C1293 DTC C1291/C1292 Set in Current or Previous Ignition Cycle
DTC C1294 Brake Lamp Switch Circuit Always Active
DTC C1295 Brake Lamp Switch Circuit Open
GM ABS (Anti-lock brakes) CODES LIST
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Check engine light - Also known as the SERVICE ENGINE SOON or SES light. This
indicates a malfunction in the engine control and emissions systems of your car. Step by
step instructions on how to do a simple scan to check for computer trouble codes. These
codes give an indication as to what system is having a problem.
indicates a malfunction in the engine control and emissions systems of your car. Step by
step instructions on how to do a simple scan to check for computer trouble codes. These
codes give an indication as to what system is having a problem.
Car maintenance - A list of some common auto maintenance checks that you can do
yourself. Check fluid levels. Adjust tire pressures. Drive belt inspection, etc. Pictures
videos, and more.
yourself. Check fluid levels. Adjust tire pressures. Drive belt inspection, etc. Pictures
videos, and more.
Automotive questions - Browse lists of some previously answered questions. Choose
your vehicle by Make and Model and read articles our expert mechanics have answered.
your vehicle by Make and Model and read articles our expert mechanics have answered.
Anti-lock brakes are designed to prevent skidding and help drivers maintain steering control during an
emergency stopping situation. In cars equipped with conventional brakes, the driver pumps the brakes,
whereas in cars equipped with four-wheel ABS, the driver keeps a firm foot on the brake allowing the
system to rapidly and automatically pump the brakes. Because the wheels don't lock up, drivers have
the ability to steer around hazards if they are unable to stop in time.
When the braking force created by the driver is greater than the tire can handle, the wheel can lock up.
Locking wheels can create vehicle instability problems and prevent steering around obstacles in the
road. Stopping distance on many slippery surfaces will also increase with locked wheels. Four-wheel
ABS prevents wheel lock-up in situations in which the wheels might normally lock, such as on slippery
roads.
ABS can also prevent tire damage. Locked wheels on dry asphalt or concrete can quickly create flat
spots on tires, which can cause an annoying vibration while driving.
When a driver operating a four-wheel ABS-equipped vehicle steps firmly on the brake pedal, the system
automatically modulates the brake pressure at all four wheels, adjusting pressure to each wheel
independently to prevent wheel lock-up.
With ABS, stopping distances decrease in many cases and the driver can maintain steering control of
the vehicle. Importantly, four-wheel ABS allows the driver continuing control to help steer around
hazards if a complete stop cannot be accomplished in time.
emergency stopping situation. In cars equipped with conventional brakes, the driver pumps the brakes,
whereas in cars equipped with four-wheel ABS, the driver keeps a firm foot on the brake allowing the
system to rapidly and automatically pump the brakes. Because the wheels don't lock up, drivers have
the ability to steer around hazards if they are unable to stop in time.
When the braking force created by the driver is greater than the tire can handle, the wheel can lock up.
Locking wheels can create vehicle instability problems and prevent steering around obstacles in the
road. Stopping distance on many slippery surfaces will also increase with locked wheels. Four-wheel
ABS prevents wheel lock-up in situations in which the wheels might normally lock, such as on slippery
roads.
ABS can also prevent tire damage. Locked wheels on dry asphalt or concrete can quickly create flat
spots on tires, which can cause an annoying vibration while driving.
When a driver operating a four-wheel ABS-equipped vehicle steps firmly on the brake pedal, the system
automatically modulates the brake pressure at all four wheels, adjusting pressure to each wheel
independently to prevent wheel lock-up.
With ABS, stopping distances decrease in many cases and the driver can maintain steering control of
the vehicle. Importantly, four-wheel ABS allows the driver continuing control to help steer around
hazards if a complete stop cannot be accomplished in time.
GM dash warning lights