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 MANUALSCHEVROLET1995BLAZER 4D UTILITY, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXANTI-LOCK BRAKE SYSTEM DTCS
1995 Chevrolet Blazer 4D Utility, AWD
Anti-Lock Brake System DTCS
1995 Chevrolet Blazer 4D Utility, AWDSECTION Anti-Lock Brake System DTCS
ANTI-LOCK BRAKE SYSTEM DTCS
| OEM Code | Description |
|---|---|
| 21 | FRONT WHEEL SENSOR OR CIRCUIT IS OPEN |
| 22 | FRONT WHEEL SPEED SIGNAL IS MISSING |
| 23 | FRONT WHEEL SENSOR IS ERRATIC |
| 25 | FRONT WHEEL SENSOR OR CIRCUIT IS OPEN |
| 26 | FRONT WHEEL SPEED SIGNAL IS MISSING |
| 27 | FRONT WHEEL SENSOR IS ERRATIC |
| 29 | BOTH FRONT WHEEL SPEED SIGNALS MISSING |
| 36 | REAR SPEED SENSOR SIGNAL MISSING |
| 37 | ERRATIC VEHICLE SPEED SENSOR SIGNAL |
| 38 | WHEEL SPEED SENSOR ERROR |
| 41 | ISOLATION SOLENOID CKT OR SOLENOID OPEN |
| 42 | PWM SOLENOID CIRCUIT OR SOLENOID OPEN |
| 43 | ISOLATION SOLENOID CKT OR SOLENOID SHORTED |
| 44 | PWM SOLENOID CIRCUIT OR SOLENOID SHORTED |
| 45 | ISOLATION SOLENOID CKT OR SOLENOID OPEN |
| 46 | PWM SOLENOID CIRCUIT OR SOLENOID OPEN |
| 47 | ISOLATION SOLENOID CKT OR SOLENOID SHORTED |
| 48 | PWM SOLENOID CIRCUIT OR SOLENOID SHORTED |
| 51 | ISOLATION SOLENOID CKT OR SOLENOID OPEN |
| 52 | PWM SOLENOID CIRCUIT OR SOLENOID OPEN |
| 53 | ISOLATION SOLENOID CKT OR SOLENOID SHORTED |
| 54 | PWM SOLENOID CIRCUIT OR SOLENOID SHORTED |
| 64 | LOW SYSTEM VOLTAGE |
| 65 | PUMP MOTOR RELAY OR CIRCUIT OPEN |
| 66 | PUMP MOTOR RELAY OR CIRCUIT SHORTED |
| 67 | OPEN MOTOR CIRCUIT OR SHORTED VCM OUTPUT |
| 68 | LOCKED PUMP MOTOR OR SHORTED MOTOR CIRCUIT |
| 69 | LOW SYSTEM VOLTAGE |
| 74 | EXCESSIVE ISOLATION TIME |
| 75 | VCM HISTORY MEMORY ERROR |
| 81 | BRAKE SWITCH CIRCUIT |
| 86 | ANTI-LOCK LIGHT FAULT |
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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.