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 Compass TrailhawkFACTORY OEM SERVICE PROCEDURE
Cluster, Instrument
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B1612-00 | PANEL ILLUMINATION CONTROL |
| B1772-00 | ABS TELLTALE |
| B1773-00 | SEATBELT TELLTALE |
| B1EAC-2A | STEERING WHEEL AUDIO - EVIC SWITCH-STUCK |
| B2199-16 | BATTERY VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD |
| B2199-17 | BATTERY VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| B21DD-84 | SYSTEM VOLTAGE-SIGNAL BELOW ALLOWABLE RANGE |
| B21DD-85 | SYSTEM VOLTAGE - SIGNAL VOLTAGE ABOVE ALLOWABLE RANGE |
| B2213-00 | CABIN COMPARTMENT NODE/CLUSTER INTERNAL |
| B2267-00 | INTERIOR REAR VIEW MIRROR MODULE INTERNAL |
| B275B-00 | AIRBAG TELLTALE |
| U0001-00 | CAN C BUS |
| U0002-00 | CAN C BUS OFF PERFORMANCE |
| U0010-00 | CAN INTERIOR BUS |
| U0011-00 | CAN INTERIOR BUS OFF PERFORMANCE |
| U0100-00 | LOST COMMUNICATION WITH ECM/PCM |
| U0101-00 | LOST COMMUNICATION WITH TCM |
| 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 |
| U0129-00 | LOST COMMUNICATION WITH BRAKE SYSTEM CONTROL MODULE 1 |
| U0131-00 | LOST COMMUNICATION WITH ELECTRIC POWER STEERING 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) |
| U0184-00 | LOST COMMUNICATION WITH RADIO |
| U0213-00 | LOST COMMUNICATION WITH INTERIOR MIRROR CONTROL MODULE |
| U0401-00 | IMPLAUSIBLE DATA RECEIVED FROM ECM/PCM |
| U0402-00 | IMPLAUSIBLE DATA RECEIVED FROM TCM |
| U0415-00 | IMPLAUSIBLE DATA RECEIVED FROM ABS |
| U0418-00 | IMPLAUSIBLE DATA RECEIVED FROM BRAKE SYSTEM CONTROL MODULE |
| 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 |
| U1190-00 | LOST COMMUNICATION WITH HUMIDITY SENSOR |
| U11B9-00 | LOST COMMUNICATION WITH RF HUB |
| U11FA-00 | LOST COMMUNICATION WITH RIGHT BLIND SPOT SENSOR |
| U11FB-00 | LOST COMMUNICATION WITH LEFT BLIND SPOT SENSOR |
| U1215-00 | LOST COMMUNICATION WITH FORWARD FACING CAMERA |
| U1216-00 | LOST COMMUNICATION WITH DASM |
| U121B-00 | LOST COMMUNICATION WITH VEHICLE TRACKING MODULE |
| U1489-00 | IMPLAUSIBLE DATA RECEIVED FROM RF HUB |
| U148D-00 | IMPLAUSIBLE DATA RECEIVED FROM FORWARD FACING CAMERA |
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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