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.
1996 Buick Century CustomFACTORY OEM SERVICE PROCEDURE
Anti-Lock Brake System DTCS
ANTI-LOCK BRAKE SYSTEM DTCS
| OEM Code | Description |
|---|---|
| 11 | ABS WARNING LIGHT CIRCUIT MALFUNCTION |
| 13 | ABS ACTIVE OR LOW TRAC LIGHT CIRCUIT FAULT |
| 14 | ABS ENABLE RELAY CONTACT CIRCUIT OPEN |
| 15 | ABS ENABLE RELAY CONTACTS SHORTED TO BATTERY OR ALWAYS CLOSED |
| 16 | ABS ENABLE RELAY COIL CIRCUIT OPEN |
| 17 | ABS ENABLE RELAY COIL CIRCUIT SHORTED TO GROUND |
| 18 | ABS ENABLE RELAY COIL CIRCUIT SHORTED TO BATTERY VOLTAGE |
| 21 | FRONT WHEEL SPEED IS ZERO |
| 22 | FRONT WHEEL SPEED IS ZERO |
| 25 | EXCESSIVE WHEEL SPEED VARIATION |
| 26 | EXCESSIVE WHEEL SPEED VARIATION |
| 27 | EXCESSIVE WHEEL SPEED VARIATION |
| 28 | EXCESSIVE WHEEL SPEED VARIATION |
| 32 | WHEEL SPEED SENSOR CIRCUIT OPEN OR SHORTED TO BATTERY OR GROUND |
| 33 | WHEEL SPEED SENSOR CIRCUIT OPEN OR SHORTED TO BATTERY OR GROUND |
| 34 | WHEEL SPEED SENSOR CIRCUIT OPEN OR SHORTED TO BATTERY OR GROUND |
| 35 | WHEEL SPEED SENSOR CIRCUIT OPEN OR SHORTED TO BATTERY OR GROUND |
| 36 | LOW SYSTEM VOLTAGE |
| 37 | HIGH SYSTEM VOLTAGE |
| 38 | ESB WILL NOT HOLD MOTOR |
| 41 | ESB WILL NOT HOLD MOTOR |
| 42 | ESB WILL NOT HOLD MOTOR |
| 44 | CHANNEL (MOTOR) WILL NOT MOVE |
| 45 | CHANNEL (MOTOR) WILL NOT MOVE |
| 46 | CHANNEL (MOTOR) WILL NOT MOVE |
| 47 | ABS MOTOR FREE SPINS |
| 48 | ABS MOTOR FREE SPINS |
| 51 | ABS MOTOR FREE SPINS |
| 52 | LEFT/RIGHT FRONT CHANNEL (MOTOR) RELEASED TOO LONG |
| 53 | LEFT/RIGHT FRONT CHANNEL (MOTOR) RELEASED TOO LONG |
| 54 | REAR CHANNEL RELEASE TOO LONG |
| 55 | EBCM/EBTCM MALFUNCTION |
| 56 | ABS MOTOR CIRCUIT OPEN |
| 57 | ABS MOTOR CIRCUIT SHORTED TO GROUND |
| 58 | ABS MOTOR CIRCUIT SHORTED TO BATTERY OR MOTOR SHORTED |
| 61 | ABS MOTOR CIRCUIT OPEN |
| 62 | ABS MOTOR CIRCUIT SHORTED TO GROUND |
| 63 | ABS MOTOR CIRCUIT SHORTED TO BATTERY OR MOTOR SHORTED |
| 64 | ABS MOTOR CIRCUIT OPEN |
| 65 | ABS MOTOR CIRCUIT SHORTED TO GROUND |
| 66 | ABS MOTOR CIRCUIT SHORTED TO BATTERY OR MOTOR SHORTED |
| 76 | FRONT SOLENOID CIRCUIT OPEN OR SHORTED TO GROUND |
| 77 | FRONT SOLENOID CIRCUIT SHORTED TO BATTERY |
| 78 | FRONT SOLENOID CIRCUIT OPEN OR SHORTED TO GROUND |
| 81 | FRONT SOLENOID CIRCUIT SHORTED TO BATTERY |
| 82 | CALIBRATION MALFUNCTION |
| 87 | RED BRAKE WARNING LIGHT CIRCUIT OPEN OR SHORTED TO BATTERY VOLTAGE |
| 91 | OPEN BRAKE SWITCH CONTACTS DURING DECELERATION OR WHEN ABS IS REQUIRED |
| 92 | OPEN BRAKE SWITCH CONTACTS DURING DECELERATION OR WHEN ABS IS REQUIRED |
| 93 | CODE 91 OR 92 SET IN CURRENT OR LAST IGNITION CYCLE |
| 94 | BRAKE SWITCH CONTACTS ALWAYS CLOSED |
| 95 | BRAKE SWITCH CIRCUIT OPEN |
Factory Service Tools
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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.
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