Engine-Codes.com
Engine-Codes – Honda – P1794 Honda

P1794 Honda Code - Automatic Transmission BARO Signal

Quick Answer

The P1794 Honda code refers to a problem with the Automatic Transmission BARO Signal. Common causes include Faulty BARO sensor, Wiring issues or loose connections related to the BARO sensor, ECM malfunction. 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
P1794 Honda indicates Automatic Transmission BARO Signal.
Common causes
Common causes include Faulty BARO sensor, Wiring issues or loose connections related to the BARO sensor, ECM malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1794 Honda Description

The P1794 Honda code refers to a problem with the Automatic Transmission BARO Signal. In vehicles with automatic transmissions, the BARO (Barometric Pressure) sensor plays a crucial role in monitoring atmospheric pressure, which is essential for proper engine performance and fuel efficiency. The BARO sensor provides data to the engine control module (ECM) to adjust fuel delivery and ignition timing based on the current altitude and air density.

OBDII Code P1794 Honda - Automatic Transmission BARO Signal
P1794 Honda Code - Automatic Transmission BARO Signal

Common Causes of P1794 Honda

  1. Faulty BARO sensor
  2. Wiring issues or loose connections related to the BARO sensor
  3. ECM malfunction
  4. Environmental factors affecting the BARO sensor readings
  5. Electrical interference or short circuits

Symptoms of P1794 Honda

  1. Erratic shifting behavior
  2. Transmission slipping
  3. Decreased fuel efficiency
  4. Harsh gear changes
  5. Illumination of the Check Engine Light

How to Fix P1794 Honda

  1. Use an OBD-II scanner to retrieve the trouble code and verify the Automatic Transmission BARO Signal issue.
  2. Inspect the BARO sensor and its wiring for any visible damage or loose connections.
  3. Test the BARO sensor using a multimeter to check for proper voltage and resistance.
  4. Replace the BARO sensor if it is found to be faulty or out of specification.
  5. Clear the trouble code and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1794 Honda

The cost of repairing the Automatic Transmission BARO Signal issue can vary depending on the specific cause of the problem and the cost of parts and labor. On average, the cost of replacing a BARO sensor can range from $100 to $300, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to get a quote from a trusted mechanic before proceeding with the repair.

Need more information about the P1794 Honda code?

Need more information on how to fix the P1794 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1794 Honda code diagnosed by a professional: Find a repair shop in your area

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 P1794 Honda Code

No Frequently Asked Questions about P1794 Honda Code found.

Discuss the causes and fixes for P1794 Honda OBDII Code

Submit a New Comment

Code P1794 Honda comments

No comments found for this page.