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 Renegade TrailhawkFACTORY OEM SERVICE PROCEDURE
Module, Electronic Steering Lock (ESL)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B1000-01 | ELECTRONIC CONTROL UNIT - GENERAL ELECTRICAL FAILURE |
| B1001-16 | POWER SUPPLY - CIRCUIT VOLTAGE BELOW THRESHOLD |
| B1001-17 | POWER SUPPLY - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| B100A-64 | COMMAND IGNITION STATUS - SIGNAL PLAUSIBILITY FAILURE |
| B1010-09 | STEERING LOCK MOTOR - COMPONENT FAILURES |
| B1010-71 | STEERING LOCK MOTOR - ACTUATOR STUCK |
| B1011-64 | STEERING LOCK MOTOR SENSOR - SIGNAL PLAUSIBILITY FAILURE |
| B1013-62 | HARDWIRED VEHICLE SPEED SIGNAL FROM BSM (BRAKING SYSTEM MODULE) - SIGNAL COMPARE FAILURE |
| B1014-86 | VEHICHLE SPEED FROM BRAKING SYSTEM MODULE BSM - SIGNAL INVALID |
| B1015-23 | INTERNAL RELAY IGNITION SWITCH SIGNAL (FROM BODY CONTROL MODULE) - SIGNAL STUCK LOW |
| B1015-67 | INTERNAL RELAY IGNITION SWITCH SIGNAL (FROM BODY CONTROL MODULE) - SIGNAL INCORRECT AFTER EVENT |
| U0001-87 | C CAN-MISSING MESSAGE |
| U0001-88 | C CAN-BUS OFF |
| U0426-31 | MINICRYPT ERROR - NO SIGNAL |
| U0426-62 | MINICRYPT ERROR - SIGNAL COMPARE FAILURE |
| U1700-86 | BCM BODY CONTROL MODULE-SIGNAL INVALID |
| U1700-87 | BODY CONTROL MODULE (BCM) - MISSING MESSAGE |
| U1700-8F | BODY CONTROL MODULE (BCM)-ERRATIC |
| U1701-86 | ENGINE CONTROL MODULE (ECM) - SIGNAL INVALID |
| U1701-87 | ENGINE CONTROL MODULE (ECM) - MISSING MESSAGE |
| U1703-86 | IPC (INSTRUMENT PANEL CLUSTER) - SIGNAL INVALID |
| U1703-87 | IPC INSTRUMENT PANEL CLUSTER - MISSING MESSAGE |
| U1706-86 | BRAKE SYSTEM MODULE (BSM) - SIGNAL INVALID |
| U1706-87 | BRAKING SYSTEM MODULE (BSM) - MISSING MESSAGE |
| U1930-86 | ECU OPERATIONAL MODE STATUS INTERNAL SIGNAL- SIGNAL INVALID |
| U1932-86 | OPERATIONAL MODE STATUS SIGNAL FROM BODY CONTROL MODULE- SIGNAL INVALID |
| U1950-83 | MESSAGE BCM_COMMAND PLAUSIBILITY ERROR - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1952-83 | MESSAGE BRAKE1 PLAUSIBILITY ERROR - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
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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