Retrieving DTCS
WARNING: This page is about a different car, the 1999 GMC Sierra and 1999 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Connect Tech 2 scan tool to DLC located under steering column. Access 4WAL brake DTCs. Repair DTCs in the order they appear. See 4WAL DIAGNOSTIC TROUBLE CODE (DTC) table for diagnosis. Before diagnosing DTC(s), check system operation. See DIAGNOSTIC SYSTEM CHECK .
4WAL DIAGNOSTIC TROUBLE CODE (DTC)
| DTC | (1) Definition | ||
|---|---|---|---|
| C0221 | Right Front Wheel Speed Sensor Circuit Open | ||
| C0222 | Right Front Wheel Speed Sensor Signal Missing | ||
| C0223 | Right Front Wheel Speed Sensor Signal Erratic | ||
| C0225 | Left Front Wheel Speed Sensor Circuit Open | ||
| C0226 | Left Front Wheel Speed Sensor Signal Missing | ||
| C0227 | Left Front Wheel Speed Sensor Signal Erratic | ||
| C0229 | Drop Out Of Front Wheel Speed Signals | ||
| C0235 | Rear Speed Sensor Signal Circuit Open | ||
| C0236 | Rear Speed Sensor Signal Missing | ||
| C0237 | Rear Speed Sensor Signal Erratic | ||
| C0238 | Wheel Speed Mismatch | ||
| C0241 | EBCM Control Valve Circuit | ||
| CO242 | EBCM Control Valve Circuit | ||
| CO243 | EBCM Control Valve Circuit | ||
| C0244 | EBCM Control Valve Circuit | ||
| C0245 | EBCM Control Valve Circuit | ||
| C0246 | EBCM Control Valve Circuit | ||
| C0247 | EBCM Control Valve Circuit | ||
| C0248 | EBCM Control Valve Circuit | ||
| C0249 | EBCM Control Valve Circuit | ||
| C0250 | EBCM Control Valve Circuit | ||
| C0251 | EBCM Control Valve Circuit | ||
| C0252 | EBCM Control Valve Circuit | ||
| C0253 | EBCM Control Valve Circuit | ||
| C0254 | EBCM Control Valve Circuit | ||
| C0265 | EBCM Relay Circuit | ||
| C0266 | EBCM Relay Circuit | ||
| C0267 | Pump Motor Circuit Open/Shorted | ||
| C0268 | Pump Motor Circuit Open/Shorted | ||
| C0269 | Excessive Dump/Isolation Time | ||
| C0271 | EBCM Malfunction | ||
| C0272 | EBCM Malfunction | ||
| C0273 | EBCM Malfunction | ||
| C0274 | Excessive Dump/Isolation Time | ||
| C0281 | Brake Switch Circuit | ||
|
|||