C149B Code - Rear Driveline Module
Quick Answer
The Drive Train Control Module (DTCM) monitors the Rear Driveline Module (RDM). Common causes include Faulty Rear Driveline Module (RDM), Rear Driveline Module (RDM) harness is open or shorted, Rear Driveline Module (RDM) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C149B indicates Rear Driveline Module.
- Common causes
- Common causes include Faulty Rear Driveline Module (RDM), Rear Driveline Module (RDM) harness is open or shorted, Rear Driveline Module (RDM) circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C149B Description
What are the Possible Causes of the DTC C149B?
- 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 to Fix the DTC C149B?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
C149B-17-RDM - CIRCUIT VOLTAGE ABOVE THRESHOLD
C149B-98-RDM - COMPONENT OR SYSTEM OVER TEMPERATURE
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C149B code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the C149B code?
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Need Help with the Code?
Get the C149B code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- C149B Chrysler — Rear Driveline Module
- C149B Dodge — Rear Driveline Module
- C149B Jeep — Rear Driveline Module
Frequently Asked Questions about C149B Code
1. What are common symptoms of OBDII code C149B (Rear Driveline Module)?
Common symptoms may include abnormal noises from the rear driveline, difficulty shifting gears, and a decrease in overall driving performance.
2. What are possible causes of OBDII code C149B?
Potential causes of this code include a malfunctioning rear driveline module, damaged wiring or connectors, or issues with the driveline control unit.
3. How can I diagnose OBDII code C149B?
Diagnosis typically involves using an OBDII scanner to retrieve the code, conducting a visual inspection of the rear driveline components, and testing the rear driveline module and related circuits for proper functioning.
4. Can I still drive my vehicle with OBDII code C149B?
It is not recommended to continue driving your vehicle with this code present, as it can lead to further damage and potential safety issues. It is best to address the problem promptly.
5. How can I repair OBDII code C149B?
Repairing this code may involve replacing the rear driveline module, repairing or replacing damaged wiring or connectors, or reprogramming the driveline control unit. It is advisable to consult a professional mechanic for proper diagnosis and repair.
6. Is it safe to reset the OBDII code C149B without fixing the underlying issue?
Resetting the code without addressing the root cause can temporarily clear the warning light, but the problem will likely resurface. It is essential to fix the underlying issue to ensure the vehicle operates correctly.
7. Will OBDII code C149B cause my vehicle to fail an emissions test?
If left unresolved, this code may affect the emissions system of your vehicle, leading to a failed emissions test. It is recommended to address the issue before undergoing an emissions test.
8. How much does it cost to repair OBDII code C149B?
The cost of repairing this code can vary depending on the specific cause of the issue, the extent of the damage, and labor costs. It is advisable to obtain quotes from different mechanics to compare prices.
9. Can a DIY enthusiast fix OBDII code C149B at home?
While some basic diagnostics and repairs can be done at home, addressing OBDII code C149B may require specialized tools and expertise. It is recommended to seek professional help for accurate diagnosis and repair.
10. How long does it typically take to repair OBDII code C149B?
The repair time for this code can vary based on the severity of the issue, availability of parts, and the mechanic's workload. It is best to inquire with your mechanic about the estimated repair time.
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