Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXANTI-LOCK BRAKE DTCS
1998 Chevrolet Suburban K2500, 7.4 J, Part Time
Anti-Lock Brake DTCS
1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Anti-Lock Brake DTCS
ANTI-LOCK BRAKE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| 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 SENSOR SIGNALS |
| C0235 | REAR SPEED SENSOR SIGNAL CIRCUIT OPEN OR GROUNDED (GASOLINE ENGINES) |
| C0235 | REAR SPEED SENSOR SIGNAL CIRCUIT OPEN OR GROUNDED (DIESEL ENGINES) |
| C0236 | REAR SPEED SENSOR SIGNAL MISSING (GASOLINE ENGINES) |
| C0236 | REAR SPEED SENSOR SIGNAL MISSING (DIESEL ENGINES) |
| C0237 | REAR SPEED SENSOR SIGNAL ERRATIC (GASOLINE ENGINES) |
| C0237 | REAR SPEED SENSOR SIGNAL ERRATIC (DIESEL ENGINES) |
| C0238 | WHEEL SPEED SIGNAL MALFUNCTION |
| C0241 | RIGHT FRONT ISOLATION SOLENOID CIRCUIT OPEN |
| C0242 | RIGHT FRONT DUMP SOLENOID CIRCUIT OPEN |
| C0243 | RIGHT FRONT ISOLATION SOLENOID CIRCUIT SHORTED |
| C0244 | RIGHT FRONT DUMP SOLENOID CIRCUIT SHORTED |
| C0245 | LEFT FRONT ISOLATION SOLENOID CIRCUIT OPEN |
| C0246 | LEFT FRONT DUMP SOLENOID CIRCUIT OPEN |
| C0247 | LEFT FRONT ISOLATION SOLENOID CIRCUIT SHORTED |
| C0248 | LEFT FRONT DUMP SOLENOID CIRCUIT SHORTED |
| C0251 | REAR ISOLATION SOLENOID CIRCUIT SHORTED |
| C0252 | REAR DUMP SOLENOID CIRCUIT OPEN |
| C0253 | REAR ISOLATION SOLENOID CIRCUIT SHORTED (EXCEPT "L" & "M" SERIES) |
| C0254 | REAR DUMP SOLENOID CIRCUIT SHORTED |
| C0265 | PUMP MOTOR RELAY CIRCUIT OPEN |
| C0266 | PUMP MOTOR RELAY CIRCUIT SHORTED |
| C0267 | PUMP MOTOR CIRCUIT OPEN (EXCEPT "L" & "M" SERIES) |
| C0267 | PUMP MOTOR CIRCUIT OPEN ("L" & "M" SERIES) |
| C0268 | PUMP MOTOR LOCKED OR PUMP MOTOR CIRCUIT SHORTED (EXCEPT "L" & "M" SERIES) |
| C0268 | PUMP MOTOR LOCKED OR CIRCUIT SHORTED ("L" & "M" SERIES) |
| C0269 OR C0274 | EXCESSIVE DUMP/ISOLATION TIME |
| C0271, C0272 & C0273 | EBCM INTERNAL FAULT |
| C0281 | STOPLIGHT SWITCH ALWAYS CLOSED OR SHORTED |
| C0286 | ANTI-LOCK INDICATOR LIGHT CIRCUIT SHORTED TO BATTERY VOLTAGE |
| C0288 | BRAKE WARNING LIGHT CIRCUIT SHORTED TO BATTERY VOLTAGE |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.