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, Driver Door (DDM), (DMFL/R)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B173D-11 | MIRROR SIGNAL LAMP CONTROL - CIRCUIT SHORT TO GROUND |
| B173D-12 | MIRROR SIGNAL LAMP CONTROL - CIRCUIT SHORT TO BATTERY |
| B173D-13 | MIRROR SIGNAL LAMP CONTROL - CIRCUIT OPEN |
| B18B5-00 | MASTER SWITCH - FRONT LEFT WINDOW SWITCH - STUCK |
| B18B6-00 | MASTER SWITCH - FRONT RIGHT WINDOW SWITCH - STUCK |
| B18BA-11 | WINDOW CONTROL - CIRCUIT SHORT TO GROUND |
| B18BA-12 | WINDOW CONTROL - CIRCUIT SHORT TO BATTERY |
| B18BA-13 | WINDOW CONTROL - CIRCUIT OPEN |
| B18BA-4B | WINDOW CONTROL - OVER TEMPERATURE |
| B1D00-2A | MIRROR FOLD SWITCH INPUT - STUCK |
| B1D04-2A | MIRROR ADJUST SWITCH INPUT - STUCK |
| B1D4A-2A | MEMORY SWITCH INPUT - STUCK |
| B1DD0-11 | MIRROR HEATER CONTROL - CIRCUIT SHORT TO GROUND |
| B1DD0-15 | MIRROR HEATER CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN |
| B1E64-00 | LEFT MIRROR SELECT SWITCH - STUCK |
| B1E65-00 | RIGHT MIRROR SELECT SWITCH - STUCK |
| B1F02-11 | MIRROR VERTICAL MOTOR CONTROL - CIRCUIT SHORT TO GROUND |
| B1F02-12 | MIRROR VERTICAL MOTOR CONTROL - CIRCUIT SHORT TO BATTERY |
| B1F02-13 | MIRROR VERTICAL MOTOR CONTROL - CIRCUIT OPEN |
| B1F03-11 | MIRROR HORIZONTAL MOTOR CONTROL - CIRCUIT SHORT TO GROUND |
| B1F03-12 | MIRROR HORIZONTAL MOTOR CONTROL - CIRCUIT SHORT TO BATTERY |
| B1F03-13 | MIRROR HORIZONTAL MOTOR CONTROL - CIRCUIT OPEN |
| B1F04-11 | MIRROR FOLD CONTROL - CIRCUIT SHORT TO GROUND |
| B1F04-15 | MIRROR FOLD CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN |
| B1F06-12 | MIRROR CONTROL SENSOR POSITION CIRCUIT - CIRCUIT SHORT TO BATTERY |
| B1F06-14 | MIRROR CONTROL SENSOR POSITION CIRCUIT - CIRCUIT SHORT TO GROUND OR OPEN |
| B210C-16 | BATTERY VOLTAGE INPUT - CIRCUIT VOLTAGE BELOW THRESHOLD |
| B210C-17 | BATTERY VOLTAGE INPUT - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| B21DD-84 | SYSTEM VOLTAGE - SIGNAL BELOW ALLOWABLE RANGE |
| B21DD-85 | SYSTEM VOLTAGE - SIGNAL VOLTAGE ABOVE ALLOWABLE RANGE |
| B224F-54 | DOOR MODULE INTERNAL - MISSING CALIBRATION |
| B224F-96 | DOOR MODULE INTERNAL - COMPONENT INTERNAL FAILURE |
| B25AF-2A | DOOR LOCK/UNLOCK SWITCH - STUCK |
| B25B0-31 | WINDOW POSITION SENSOR - NO SIGNAL |
| B25B1-11 | WINDOW POSITION SENSOR POWER SUPPLY - CIRCUIT SHORT TO GROUND |
| B285F-11 | BLIND SPOT WARNING LIGHT CONTROL - CIRCUIT SHORT TO GROUND |
| B285F-15 | BLIND SPOT WARNING LIGHT CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN |
| B2861-11 | MIRROR APPROACH LIGHT CONTROL - CIRCUIT SHORT TO GROUND |
| B2861-15 | MIRROR APPROACH LIGHT CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN |
| U0010-00 | CAN INTERIOR BUS |
| U0011-00 | CAN INTERIOR BUS OFF PERFORMANCE |
| U0037-11 | LIN BUS - CIRCUIT SHORT TO GROUND |
| U0140-00 | LOST COMMUNICATION WITH BODY CONTROL MODULE |
| U0164-00 | LOST COMMUNICATION WITH HVAC CONTROL MODULE |
| U0199-00 | LOST COMMUNICATION WITH DRIVER DOOR MODULE |
| U0209-00 | LOST COMMUNICATION WITH MEMORY SEAT CONTROL MODULE |
| U0422-00 | IMPLAUSIBLE DATA RECEIVED FROM BODY CONTROL MODULE |
| U0424-00 | IMPLAUSIBLE DATA RECEIVED FROM HVAC CONTROL MODULE |
| U050A-00 | IMPLAUSIBLE DATA RECEIVED FROM MEMORY SEAT CONTROL MODULE |
| U113D-00 | LOST COMMUNICATION WITH MASTER POWER WINDOW SWITCH |
| U11FB-00 | LOST COMMUNICATION WITH LEFT BLIND SPOT SENSOR |
| U147D-00 | IMPLAUSIBLE DATA RECEIVED FROM RIGHT BLIND SPOT SENSOR |
| U147E-00 | IMPLAUSIBLE DATA RECEIVED FROM LEFT BLIND SPOT SENSOR |
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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