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 Lincoln Navigator RWDFACTORY OEM SERVICE PROCEDURE
Anti-Lock Brake System (ABS) Module Diagnostic Trouble Code (DTC) Index
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTCS | Description | Source | Action |
|---|---|---|---|
| B1342 | Anti-Lock Brake System (ABS) Module Failure | ABS | REPAIR all other DTCs. CLEAR the DTCs. TEST the system for normal operation. If DTC returns, INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE in this article. |
| C1220 | Yellow ABS Warning Indicator Failure | ABS | Go To PINPOINT TEST C . |
| C1194/C1196 | Dump Valve, Front Left | ABS | Go To PINPOINT TEST D . |
| C1198/C1200 | Isolation Valve, Front Left | ABS | Go To PINPOINT TEST D . |
| C1202/C1204 | Dump Valve, Rear | ABS | Go To PINPOINT TEST D . |
| C1206/C1208 | Isolation Valve, Rear | ABS | Go To PINPOINT TEST D . |
| C1210/C1212 | Dump Valve, Front Right | ABS | Go To PINPOINT TEST D . |
| C1214/C1216 | Isolation Valve, Front Right | ABS | Go To PINPOINT TEST D . |
| C1155 | Front Left Wheel Speed Sensor (Electrical/Static) | ABS | Go To PINPOINT TEST E . |
| C1158/C1233 | Front Left Wheel Speed Sensor (Dynamic) | ABS | Go To PINPOINT TEST F |
| C1145 | Front Right Wheel Speed Sensor (Electrical/Static) | ABS | Go To PINPOINT TEST G . |
| C1148/C1234 | Front Right Wheel Speed Sensor (Dynamic) | ABS | Go To PINPOINT TEST H . |
| C1230 | Rear axle speed sensor (Electrical/Static) | ABS | Go To PINPOINT TEST I . |
| C1229/C1237 | Rear axle speed sensor (Dynamic) | ABS | Go To PINPOINT TEST J . |
| C1095/C1096 | Pump Motor | ABS | Go To PINPOINT TEST L . |
| C1113/C1115 | Internal Power Relay | ABS | Go To PINPOINT TEST M . |
| C1185 | Open Internal Power Relay | ABS | Go To PINPOINT TEST M . |
| C1169 | Excessive Dump Time | ABS | REPAIR all other DTCs before proceeding. Go To PINPOINT TEST O . |
| C1184 | ABS System Timeout | ABS | REPAIR all other DTCs before proceeding. Go To PINPOINT TEST N . |
| C1222 | Wheel Speed Error (Dynamic) | ABS | Go To PINPOINT TEST N . |
| C1226 | Brake Warning Lamp On | ABS | REFER to ANALOG INSTRUMENT PANELS . |
| C1502/C1503 | Left/Right Isolation Valve Diode Shorted | ABS | INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE in this article. |
| B1676 | Voltage Out of Range | ABS | Go To PINPOINT TEST Q . |
Factory Service Tools
Use the Manual With the Right Hardware
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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.