Engine-CodesHonda – P1788 Honda

P1788 Honda Code - Automatic Transmission Poor Gear Shift

Quick Answer

The P1788 code for Honda vehicles indicates a problem with the automatic transmission's gear shifting mechanism. Common causes include Low or dirty transmission fluid, Faulty transmission solenoids, Malfunctioning transmission sensors. 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
P1788 Honda indicates Automatic Transmission Poor Gear Shift.
Common causes
Common causes include Low or dirty transmission fluid, Faulty transmission solenoids, Malfunctioning transmission sensors.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P1788 Honda Description

The P1788 code for Honda vehicles indicates a problem with the automatic transmission's gear shifting mechanism. The transmission in a vehicle is responsible for transferring power from the engine to the wheels, allowing the vehicle to accelerate, decelerate, and maintain speed. When the transmission is not shifting gears properly, it can have a significant impact on the vehicle's performance, fuel efficiency, and overall drivability.

OBDII Code P1788 Honda - Automatic Transmission Poor Gear Shift
P1788 Honda Code - Automatic Transmission Poor Gear Shift

Common Causes of P1788 Honda

  1. Low or dirty transmission fluid
  2. Faulty transmission solenoids
  3. Malfunctioning transmission sensors
  4. Worn clutch packs or bands
  5. Mechanical issues within the transmission

Symptoms of P1788 Honda

  1. Harsh or delayed gear shifts
  2. Stuck in a certain gear
  3. Jerky or rough ride
  4. Sluggish acceleration
  5. High engine revs

How to Fix P1788 Honda

  1. Perform a diagnostic scan to retrieve the fault codes and pinpoint the exact cause of the poor gear shifting.
  2. Inspect the transmission fluid level and condition. Replace or top up the fluid if necessary.
  3. Check and test the transmission solenoids, sensors, and mechanical components for proper operation. Replace any faulty parts.
  4. Perform a transmission flush and filter replacement to ensure proper fluid circulation and lubrication.
  5. Test drive the vehicle to confirm that the gear shifting issue has been resolved.

Cost to Fix P1788 Honda

The typical repair costs for addressing a P1788 code related to automatic transmission poor gear shift can range from $200 to $800, depending on the specific cause of the issue and the extent of repairs needed. Parts such as transmission solenoids or sensors can cost between $50 to $200 each, while labor rates can vary between $80 to $150 per hour. It's advisable to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model.

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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.

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