Diagnostic Trouble Code (DTC) List
WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
DTC & MODULE(S) AFFECTED
| DTC | Module(s) |
|---|---|
| C0221 | EBCM |
| C0222 | EBCM |
| C0223 | EBCM |
| C0225 | EBCM |
| C0226 | EBCM |
| C0227 | EBCM |
| C0229 | EBCM |
| C0235 | EBCM, PCM |
| C0236 | EBCM, PCM |
| C0237 | EBCM, PCM |
| C0238 | EBCM, PCM |
| C0241 | EBCM |
| C0242 | EBCM |
| C0243 | EBCM |
| C0244 | EBCM |
| C0245 | EBCM |
| C0246 | EBCM |
| C0247 | EBCM |
| C0248 | EBCM |
| C0251 | EBCM |
| C0252 | EBCM |
| C0253 | EBCM |
| C0254 | EBCM |
| C0265 | EBCM |
| C0266 | EBCM |
| C0267 | EBCM |
| C0268 | EBCM |
| C0269 | EBCM |
| C0271 | EBCM |
| C0272 | EBCM |
| C0273 | EBCM |
| C0274 | EBCM |
| C0281 | EBCM |
| C0284 | EBCM |
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| C0221 | RF Wheel Speed Sensor Circuit Open |
| C0222 | RF Wheel Speed Signal Missing |
| C0223 | RF Wheel Speed Signal Erratic |
| C0225 | LF Wheel Speed Sensor Circuit Open |
| C0226 | LF Wheel Speed Signal Missing |
| C0227 | LF Wheel Speed Signal Erratic |
| C0229 | Drop Out of Front Wheel Speed Signals |
| C0235 | Rear Wheel Speed Signal Circuit Open |
| C0236 | Rear Wheel Speed Signal Circuit Missing |
| C0237 | Rear Wheel Speed Signal Erratic |
| P1504 | Vehicle Speed Output Circuit |
| C0238 | Wheel Speed Mismatch |
| C0241 | EBCM Control Valve Circuit |
| C0245 | Wheel Speed Sensor Frequency Error |
| 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 |
| C0274 | Excessive Dump/Isolation Time |
| C0271 | EBCM Malfunction |
| C0272 | EBCM Malfunction |
| C0273 | EBCM Malfunction |
| C0284 | EBCM Malfunction |
| C0281 | Brake Switch Circuit |