Engine-CodesHonda – P0816 Honda

P0816 Honda Code - Short In Transmission Gear Selection Switch Upshift/Dowshift Switch Circuit

Quick Answer

The P0816 code for Honda vehicles indicates a short in the transmission gear selection switch upshift/dowshift switch circuit. Common causes include Wiring harness issues, Faulty transmission gear selection switch, Malfunctioning transmission control module. 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
P0816 Honda indicates Short In Transmission Gear Selection Switch Upshift/Dowshift Switch Circuit.
Common causes
Common causes include Wiring harness issues, Faulty transmission gear selection switch, Malfunctioning transmission control module.
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 11, 2024
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Code P0816 Honda Description

The P0816 code for Honda vehicles indicates a short in the transmission gear selection switch upshift/dowshift switch circuit. This means that there is a malfunction in the circuit responsible for transmitting signals related to gear selection and shifting. The transmission gear selection switch is a crucial component that allows the driver to select the desired gear, whether it's for upshifting or downshifting, and communicates this information to the vehicle's transmission control module.

OBDII Code P0816 Honda - Short In Transmission Gear Selection Switch Upshift/Dowshift Switch Circuit
P0816 Honda Code - Short In Transmission Gear Selection Switch Upshift/Dowshift Switch Circuit

Common Causes of P0816 Honda

  1. Wiring harness issues
  2. Faulty transmission gear selection switch
  3. Malfunctioning transmission control module
  4. Short circuit in the circuitry
  5. Corrosion or damage to electrical connectors

Symptoms of P0816 Honda

  1. Erratic shifting patterns
  2. Difficulty engaging specific gears
  3. Delayed or harsh shifting
  4. Illumination of the check engine light
  5. Transmission slipping or jerking during gear changes

How to Fix P0816 Honda

  1. Diagnose the specific cause of the issue by conducting a thorough inspection of the transmission gear selection switch circuit.
  2. Check for any visible signs of damage to the wiring harness, connectors, or switch.
  3. Test the gear selection switch and the transmission control module to determine if they are functioning correctly.
  4. Repair or replace any damaged wiring, connectors, or components as needed.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure proper operation of the transmission system.

Cost to Fix P0816 Honda

The typical repair costs for addressing a P0816 code can vary depending on the specific cause of the issue and the extent of repairs needed. In general, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $150 to $400. Overall, the total repair cost can range from $250 to $700. It's important to note that these are rough estimates, and actual costs may vary based on factors such as the location of the repair shop, the vehicle make and model, and the complexity of the repair. It's recommended to get a detailed quote from a trusted auto repair shop for a more accurate cost estimate.

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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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