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.
2021 Jeep Cherokee TrailhawkFACTORY OEM SERVICE PROCEDURE
Module, Electronic Steering Lock (ESL)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B1A92-09 | STEERING LOCK MOTOR - COMPONENT FAILURES |
| B1A92-71 | STEERING LOCK MOTOR-ACTUATOR STUCK |
| B1A93-64 | STEERING LOCK MOTOR SENSOR-SIGNAL PLAUSIBILITY FAILURE |
| B212E-23 | IGNITION RUN/ACC CONTROL - SIGNAL STUCK LOW |
| B2199-16 | BATTERY VOLTAGE-CIRCUIT VOLTAGE BELOW THRESHOLD |
| B2199-17 | BATTERY VOLTAGE-CIRCUIT VOLTAGE ABOVE THRESHOLD |
| B22A9-01 | ECU INTERNAL PERFORMANCE-GENERAL ELECTRICAL FAILURE |
| C211B-64 | IGNITION RUN/START INPUT - SIGNAL PLAUSIBILITY FAILURE |
| U0001-00 | CAN C BUS |
| U0001-87 | CAN C BUS - MISSING MESSAGE |
| U0002-00 | CAN C BUS OFF PERFORMANCE |
| U0002-88 | CAN C BUS OFF PERFORMANCE |
| U0121-00 | LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE |
| U0140-00 | LOST COMMUNICATION WITH BODY CONTROL MODULE |
| U0415-29 | IMPLAUSIBLE DATA RECEIVED FROM ABS - SIGNAL INVALID |
| U0422-29 | IMPLAUSIBLE DATA RECEIVED FROM BODY CONTROL MODULE - SIGNAL INVALID |
| U1110-29 | LOST VEHICLE SPEED MESSAGE - SIGNAL INVALID |
| U1220-87 | LOST STEERING LOCK REQUEST MESSAGE - MISSING MESSAGE |
| U1412-62 | IMPLAUSIBLE VEHICLE SPEED SIGNAL RECEIVED - SIGNAL COMPARE FAILURE |
| U1433-64 | IMPLAUSIBLE IGNITION SWITCH STATUS MESSAGE RECEIVED - SIGNAL PLAUSIBILITY FAILURE |
| U1517-62 | BODY CONTROLLER SECRET CODE - SIGNAL COMPARE FAILURE |
| U1517-87 | BODY CONTROLLER SECRET CODE-MISSING MESSAGE |
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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