AutoCodes – Chrysler – C149B Chrysler

C149B Chrysler 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 Chrysler 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.

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Code Popularity 867

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 15, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C149B Chrysler 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.

OBDII Code C149B Chrysler - Rear Driveline Module - AutoCodes.com — C149B Chrysler Code - Rear Driveline Module

What does this mean?

What are the Possible Causes of the DTC C149B Chrysler?

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 Chrysler?

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.

What does this mean?

Code Tech Notes

C149B-16-RDM - CIRCUIT VOLTAGE BELOW THRESHOLD
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 Chrysler 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.

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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C149B Chrysler Code

1. What are common symptoms of OBDII code C149B (Chrysler) related to the Rear Driveline Module?

- Common symptoms include illuminated dashboard warning lights, drivetrain issues, and abnormal noises coming from the rear driveline.

2. What are some possible causes of OBDII code C149B (Chrysler) indicating an issue with the Rear Driveline Module?

- The code C149B can be triggered by issues such as faulty rear driveline module components, wiring problems, or software glitches.

3. How can I diagnose a problem with the Rear Driveline Module causing OBDII code C149B (Chrysler)?

- Diagnosis typically involves using a professional OBDII scanner to read the error code, inspecting the rear driveline components for damage, and checking the wiring connections.

4. Are there any DIY repair tips for addressing OBDII code C149B (Chrysler) related to the Rear Driveline Module?

- DIY repair tips may include checking and cleaning electrical connectors, ensuring proper ground connections, and inspecting for any physical damage to the module.

5. Can driving with OBDII code C149B (Chrysler) related to the Rear Driveline Module cause further damage to the vehicle?

- Continuing to drive with this code present may lead to drivetrain issues, reduced performance, and potential damage to other driveline components.

6. How much does it typically cost to repair OBDII code C149B (Chrysler) associated with the Rear Driveline Module?

- Repair costs can vary depending on the extent of the issue, but they may range from a few hundred to a thousand dollars, including parts and labor.

7. Is it safe to ignore OBDII code C149B (Chrysler) indicating a problem with the Rear Driveline Module?

- Ignoring this code can lead to potential driveline malfunctions and safety hazards, so it is recommended to address the issue promptly.

8. Can a software update fix OBDII code C149B (Chrysler) related to the Rear Driveline Module?

- In some cases, a software update provided by Chrysler may resolve the issue triggering the code C149B without the need for extensive repairs.

9. Are there any recalls or technical service bulletins related to OBDII code C149B (Chrysler) and the Rear Driveline Module?

- It is advisable to check with Chrysler or authorized dealerships for any recalls or technical service bulletins addressing the specific issue associated with code C149B.

10. How can I prevent OBDII code C149B (Chrysler) from reoccurring after repairing the Rear Driveline Module issue?

- Regular maintenance, proper driving habits, and addressing any underlying causes promptly can help prevent the recurrence of OBDII code C149B related to the Rear Driveline Module.