P1791 – Acura DTC

Acura DTC P1791 – Automatic Transaxle

DTC P1791 meaning on Acura

DTC P1791 on an Acura refers to a fault with the Automatic Transaxle. This Diagnostic Trouble Code indicates a problem with the transmission control module communication circuit.

Acura DTC P1791 symptoms

Symptoms of DTC P1791 on an Acura may include:

  • Check Engine Light illuminated
  • Transmission shifting issues
  • Harsh shifting or slipping
  • Reduced fuel efficiency

Acura DTC P1791 causes

Common causes of DTC P1791 on an Acura include:

  • Faulty transmission control module
  • Wiring or connector issues in the communication circuit
  • Internal transmission problems

Acura DTC P1791 seriousness

DTC P1791 should be addressed promptly as it can lead to further transmission damage if left unresolved. Ignoring this code may result in more severe transmission issues and potential safety hazards.

How to diagnose DTC P1791 on Acura

To diagnose DTC P1791 on an Acura, a mechanic may perform the following steps:

  1. Use a diagnostic scanner to retrieve the fault code
  2. Inspect the transmission control module and related wiring for any visible damage
  3. Test the communication circuit for continuity and proper voltage
  4. Check for any other related DTCs that may provide additional clues

How to fix DTC P1791 on Acura

To fix DTC P1791 on an Acura, the following steps may be taken:

  1. Repair or replace any damaged wiring or connectors in the communication circuit
  2. Replace the transmission control module if faulty
  3. Address any internal transmission issues if necessary
  4. Clear the fault code and test drive the vehicle to ensure the issue is resolved

How to erase DTC P1791 on Acura

To erase DTC P1791 on an Acura, a mechanic can use a diagnostic scanner to clear the fault code from the vehicle’s memory. After the repair has been completed, the code can be erased to reset the Check Engine Light and ensure the issue has been resolved.

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