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AutoCodes - Generic - P161B

P161B Code - Battery Disconnect/TCM Internal

- Code Popularity: 52,617 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P161B?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Low Vehicle Battery Charge
  • Faulty Transmission Control Module (TCM)
  • TCM Software Calibration
  • TCM harness is open or shorted
  • TCM circuit poor electrical connection
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How to Fix the DTC P161B?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P161B code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P161B 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 - Battery Disconnect/TCM Internal - AutoCodes.com
P161B Code - Battery Disconnect/TCM Internal

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Code P161B comments

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