AutoCodes – Chrysler – P161B Chrysler

P161B Chrysler Code - Battery Disconnect/TCM Internal

Quick Answer

The Transmission Control Module (TCM) has detected that the calculated checksum does not match the stored checksum configuration or the TCM has encountered an interruption in the TCM power source. Common causes include Low Vehicle Battery Charge, Faulty Transmission Control Module (TCM), TCM Software Calibration. 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
P161B Chrysler indicates Battery Disconnect/TCM Internal.
Common causes
Common causes include Low Vehicle Battery Charge, Faulty Transmission Control Module (TCM), TCM Software Calibration.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 16,273
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Feb 14, 2020
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Code P161B Chrysler Description

The Transmission Control Module (TCM) has detected that the calculated checksum does not match the stored checksum configuration or the TCM has encountered an interruption in the TCM power source.
OBDII Code P161B Chrysler - Battery Disconnect/TCM Internal - AutoCodes.com
P161B Chrysler Code - Battery Disconnect/TCM Internal

What are the Possible Causes of the DTC P161B Chrysler?

  • Low Vehicle Battery Charge
  • Faulty Transmission Control Module (TCM)
  • TCM Software Calibration
  • TCM harness is open or shorted
  • TCM circuit poor electrical connection

How to Fix the DTC P161B 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P161B 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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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 P161B Chrysler Code

1. What does the OBDII code P161B Chrysler indicate?

- The code P161B indicates a Battery Disconnect/TCM Internal issue in a Chrysler vehicle.

2. What are the common symptoms of OBDII code P161B in a Chrysler?

- Common symptoms include issues with the transmission, such as harsh shifting, transmission slipping, or failure to engage gears.

3. What are the potential causes of the P161B code in a Chrysler?

- The code can be triggered by a faulty transmission control module (TCM), a disconnected or weak battery, or wiring issues.

4. How do I diagnose the OBDII code P161B in my Chrysler?

- Diagnosing the code typically involves checking the battery connections, inspecting the TCM for any visible damage, and testing the wiring for continuity.

5. Can a weak battery trigger the P161B code in a Chrysler?

- Yes, a weak or disconnected battery can trigger the code due to the loss of power to the TCM.

6. What are some repair tips for addressing the P161B code in a Chrysler?

- Start by ensuring the battery is fully charged and properly connected. If the issue persists, consider inspecting and possibly replacing the TCM.

7. Is it safe to continue driving with the P161B code in a Chrysler?

- It is not recommended to continue driving with the P161B code as it can lead to further transmission issues and potential safety hazards.

8. Can resetting the code using an OBDII scanner fix the P161B issue in a Chrysler?

- Resetting the code may temporarily clear the error, but it is important to address the underlying cause to prevent it from recurring.

9. How much does it typically cost to repair the P161B code in a Chrysler?

- The cost of repair can vary depending on the specific cause of the code, but it may range from a simple battery reconnection to a TCM replacement.

10. Should I take my Chrysler to a professional mechanic for the P161B code diagnosis and repair?

- It is recommended to seek assistance from a qualified mechanic or dealership to accurately diagnose and repair the P161B code to ensure proper resolution.

Discuss the causes and fixes for P161B Chrysler OBDII Code

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