Rear Driveline Module
Table of contents
C149B JEEP Possible Causes
- Faulty Rear Driveline Module (RDM)
- Rear Driveline Module (RDM) harness is open or shorted
- Rear Driveline Module (RDM) circuit poor electrical connection
- Faulty Drive Train Control Module (DTCM)
How do I fix code C149B JEEP?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- C149B-16-RDM – CIRCUIT VOLTAGE BELOW THRESHOLD
- C149B-17-RDM – CIRCUIT VOLTAGE ABOVE THRESHOLD
- C149B-98-RDM – COMPONENT OR SYSTEM OVER TEMPERATURE
Cost of diagnosing the C149B JEEP code
The cost of diagnosing the C149B JEEP code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C149B JEEP Description
The Drive Train Control Module (DTCM) monitors the Rear Driveline Module (RDM). The DTCM sets the OBDII code when it detects that the Rear Driveline Module (RDM) system voltage is below or above normal voltage, or an overheating condition due to excessive usage of components from hard driving conditions (Mud, Sand, Snow, 2WD Chassis dynamometer etc.) or ambient temperatures.