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, Electric Power Steering (EPS)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| C0051-04 | STEERING WHEEL POSITION SENSOR - SYSTEM INTERNAL FAILURES |
| C0051-2F | STEERING WHEEL POSITION SENSOR - SIGNAL ERRATIC |
| C0051-31 | STEERING WHEEL POSITION SENSOR - NO SIGNAL |
| C0051-54 | STEERING WHEEL POSITION SENSOR - MISSING CALIBRATION |
| C0051-64 | STEERING WHEEL POSITION SENSOR - SIGNAL PLAUSIBILITY FAILURE |
| C006A-49 | MULTI-AXIS ACCELERATION SENSOR - INTERNAL ELECTRONIC FAILURE |
| C1592-01 | ELECTRONIC POWER STEERING MOTOR CIRCUIT - GENERAL ELECTRICAL FAILURE |
| C1592-16 | ELECTRONIC POWER STEERING MOTOR CIRCUIT - CIRCUIT VOLTAGE BELOW THRESHOLD |
| C1592-29 | ELECTRIC POWER STEERING MOTOR CIRCUIT - SIGNAL INVALID |
| C1592-4B | ELECTRONIC POWER STEERING MOTOR CIRCUIT - OVER TEMPERATURE |
| C1592-74 | ELECTRONIC POWER STEERING MOTOR CIRCUIT - ACTUATOR SLIPPING |
| C1592-98 | ELECTRONIC POWER STEERING MOTOR CIRCUIT - COMPONENT OR SYSTEM OVER TEMPERATURE |
| C15C1-00 | EPS MECHANICAL PERFORMANCE |
| C15CA-00 | BRAKE SYSTEM MODULE - EVENT INFORMATION |
| C2100-16 | BATTERY VOLTAGE LOW - CIRCUIT VOLTAGE BELOW THRESHOLD |
| C2101-17 | BATTERY VOLTAGE HIGH - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| C2129-13 | BATTERY VOLTAGE - CIRCUIT OPEN |
| C2129-16 | BATTERY VOLTAGE-CIRCUIT VOLTAGE BELOW THRESHOLD |
| C2129-17 | BATTERY VOLTAGE-CIRCUIT VOLTAGE ABOVE THRESHOLD |
| C2202-00 | ORIGINAL VIN MISMATCH/MISSING |
| C2217-00 | ELECTRIC POWER STEERING MODULE INTERNAL |
| C221C-00 | ECU FLASH REQUIRED |
| C221F-00 | ECU NOT INITIALIZED |
| U0001-87 | C CAN-MISSING MESSAGE |
| U0002-00 | CAN C BUS OFF PERFORMANCE |
| U0100-00 | LOST COMMUNICATION WITH ECM/PCM |
| U0102-00 | LOST COMMUNICATION WITH TRANSFER CASE CONTROL MODULE / AWD |
| U0103-00 | LOST COMMUNICATION WITH ELECTRIC GEAR SHIFT MODULE |
| U0121-00 | LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE |
| U0140-00 | LOST COMMUNICATION WITH BODY CONTROL MODULE |
| U0151-00 | LOST COMMUNICATION WITH OCCUPANT RESTRAINT CONTROLLER (ORC) |
| U0159-00 | LOST COMMUNICATION WITH PARKING ASSIST CONTROL MODULE (PAM) |
| U0401-86 | IMPLAUSIBLE DATA RECEIVED FROM ECM/PCM - SIGNAL INVALID |
| U0403-00 | IMPLAUSIBLE DATA RECEIVED FROM T-CASE |
| U0404-00 | IMPLAUSIBLE DATA RECEIVED FROM ESM |
| U0415-00 | IMPLAUSIBLE DATA RECEIVED FROM ABS |
| U0415-27 | IMPLAUSIBLE DATA RECEIVED FROM ABS - SIGNAL RATE OF CHANGE ABOVE THRESHOLD |
| U0415-35 | IMPLAUSIBLE DATA RECEIVED FROM ABS - SIGNAL HIGH TIME > MAXIMUM |
| U0415-85 | IMPLAUSIBLE DATA RECEIVED FROM ABS - SIGNAL ABOVE ALLOWABLE RANGE |
| U0415-86 | IMPLAUSIBLE DATA RECEIVED FROM ABS - SIGNAL INVALID |
| U0415-90 | IMPLAUSIBLE DATA RECEIVED FROM ABS - STUCK ON |
| U0420-00 | INVALID DATA RECEIVED FROM POWER STEERING CONTROL MODULE |
| U0422-00 | IMPLAUSIBLE DATA RECEIVED FROM BODY CONTROL MODULE |
| U0452-00 | IMPLAUSIBLE DATA RECEIVED FROM RESTRAINTS CONTROL MODULE |
| U0452-86 | IMPLAUSIBLE DATA RECEIVED FROM RESTRAINTS CONTROL MODULE - SIGNAL INVALID |
| U045A-00 | IMPLAUSIBLE DATA RECEIVED FROM PARKING ASSIST MODULE |
| U1206-00 | LOST COMMUNICATION WITH ELECTRONIC PARK BRAKE MODULE |
| U1215-00 | LOST COMMUNICATION WITH FORWARD FACING CAMERA |
| U148D-00 | IMPLAUSIBLE DATA RECEIVED FROM FORWARD FACING CAMERA |
| U148D-27 | IMPLAUSIBLE DATA RECEIVED FROM FORWARD FACING CAMERA - SIGNAL RATE OF CHANGE ABOVE THRESHOLD |
| U148D-2A | IMPLAUSIBLE DATA RECEIVED FROM FORWARD FACING CAMERA - STUCK |
| U148D-85 | IMPLAUSIBLE DATA RECEIVED FROM FORWARD FACING CAMERA - SIGNAL ABOVE ALLOWABLE RANGE |
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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