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.
2002 Ford Focus ZX3, StandardFACTORY OEM SERVICE PROCEDURE
ABS Module Diagnostic Trouble Code (DTC) Index
ABS MODULE DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Source | Action |
|---|---|---|---|
| B1676 | Battery voltage out of range | ABS | Go To PINPOINT TEST C: DTC B1676 - BATTERY VOLTAGE OUT OF RANGE . |
| B1342 | ABS module internal failure | ABS | INSTALL a new HCU. REFER to HYDRAULIC CONTROL UNIT (HCU) . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. |
| C1095 | ABS hydraulic pump motor circuit failure | ABS | Go To PINPOINT TEST D: DTC C1095 - ABS HYDRAULIC PUMP MOTOR CIRCUIT FAILURE . |
| C1141 | LF Wheel speed sensor tone ring tooth missing failure | ABS | INSPECT the LF tone ring for missing or damaged teeth. INSTALL a new wheel speed sensor ring as necessary. REFER to WHEEL BEARINGS . CLEAR the DTCs. REPEAT the self-test. |
| C1142 | RF Wheel speed sensor tone ring tooth missing failure | ABS | INSPECT the RF tone ring for missing or damaged teeth. INSTALL a new wheel speed sensor ring as necessary. REFER to WHEEL BEARINGS . CLEAR the DTCs. REPEAT the self-test. |
| C1143 | LR Wheel speed sensor tone ring tooth missing Failure | ABS | INSPECT the LR tone ring for missing or damaged teeth. INSTALL a new wheel speed sensor ring as necessary. REFER to REMOVAL & INSTALLATION . CLEAR the DTCs. REPEAT the self-test. |
| C1144 | RR Wheel speed sensor tone ring tooth missing failure | ABS | INSPECT the RR tone ring for missing or damaged teeth. INSTALL a new wheel speed sensor ring as necessary. REFER to REMOVAL & INSTALLATION . CLEAR the DTCs. REPEAT the self-test. |
| C1145 | RF wheel speed sensor input circuit failure | ABS | Go To PINPOINT TEST E: DTC C1145 (RF), C1155 (LF), C1165 (RR), C1175 (LR) - WHEEL SPEED SENSOR INPUT CIRCUIT FAILURE . |
| C1155 | LF wheel speed sensor input circuit failure | ABS | Go To PINPOINT TEST E: DTC C1145 (RF), C1155 (LF), C1165 (RR), C1175 (LR) - WHEEL SPEED SENSOR INPUT CIRCUIT FAILURE . |
| C1165 | RR wheel speed sensor input circuit failure | ABS | Go To PINPOINT TEST E: DTC C1145 (RF), C1155 (LF), C1165 (RR), C1175 (LR) - WHEEL SPEED SENSOR INPUT CIRCUIT FAILURE . |
| C1175 | LR wheel speed sensor input circuit failure | ABS | Go To PINPOINT TEST E: DTC C1145 (RF), C1155 (LF), C1165 (RR), C1175 (LR) - WHEEL SPEED SENSOR INPUT CIRCUIT FAILURE . |
| C1233 | LF wheel speed input signal missing | ABS | Go To PINPOINT TEST F: DTC 1233 (LF), C1234 (RF), C1235 (RR), C1236 (LR) - WHEEL SPEED INPUT SIGNAL MISSING . |
| C1234 | RF wheel speed input signal missing | ABS | Go To PINPOINT TEST F: DTC 1233 (LF), C1234 (RF), C1235 (RR), C1236 (LR) - WHEEL SPEED INPUT SIGNAL MISSING . |
| C1235 | RR wheel speed input signal missing | ABS | Go To PINPOINT TEST F: DTC 1233 (LF), C1234 (RF), C1235 (RR), C1236 (LR) - WHEEL SPEED INPUT SIGNAL MISSING . |
| C1236 | LR wheel speed input signal missing | ABS | Go To PINPOINT TEST F: DTC 1233 (LF), C1234 (RF), C1235 (RR), C1236 (LR) - WHEEL SPEED INPUT SIGNAL MISSING . |
| C1267 | ABS functions temporarily disabled | ABS | Go To PINPOINT TEST I: DTC C1267 - ABS FUNCTIONS TEMPORARILY DISABLED . |
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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