Retrieving Diagnostic Trouble Codes
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2001 GMC Savana Special, 2001 GMC Savana Camper Special, 2001 GMC Savana, 2001 Chevrolet Chevy Express, and 2000 GMC Savana Special. 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 ABS DTCs. Repair DTCs in the order they appear. See DIAGNOSTIC TROUBLE CODE DEFINITIONS table for diagnosis. Before diagnosing DTC(s), perform DIAGNOSTIC SYSTEM CHECK .
DIAGNOSTIC TROUBLE CODE DEFINITIONS
| DTC | (1) Definition | ||
|---|---|---|---|
| C0221 | Wheel Speed Sensor Circuit Malfunction | ||
| C0222 | Wheel Speed Sensor Circuit Malfunction | ||
| C0223 | Wheel Speed Sensor Circuit Malfunction | ||
| C0224 | Wheel Speed Sensor Circuit Malfunction | ||
| C0225 | Wheel Speed Sensor Circuit Malfunction | ||
| C0226 | Wheel Speed Sensor Circuit Malfunction | ||
| C0227 | Wheel Speed Sensor Circuit Malfunction | ||
| C0229 | Drop Out Of Front Wheel Speed Sensor Signals | ||
| C0235 | Rear Speed Sensor Signal Circuit Open | ||
| C0236 | Rear Speed Sensor Signal Circuit Open | ||
| C0237 | Rear Speed Sensor Signal Circuit Open | ||
| C0238 | Wheel Speed Mismatch | ||
| C0241 | EBCM Control Valve Circuit | ||
| C0242 | EBCM Control Valve Circuit | ||
| C0243 | 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 | ||
| C0274 | Excessive Dump/Isolation Time | ||
| C0271 | EBCM Malfunction | ||
| C0272 | EBCM Malfunction | ||
| C0273 | EBCM Malfunction | ||
| C0281 | Stoplight Switch Circuit | ||
| C0284 | EBCM Malfunction | ||
| C0286 | ABS Indicator Light Circuit Shorted To Battery Voltage | ||
| C0288 | Brake Warning Indicator Light Circuit Shorted To Battery Voltage | ||
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