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Engine-Codes – Generic – P1907

P1907 Code - Kickdown Hold Relay Open or Short Circuit to Ground

Quick Answer

The diagnostic trouble code P1907 indicates that there is an issue with the kickdown hold relay in the vehicle's transmission system. Common causes include Faulty Kickdown Hold Relay: The most common cause of the P1907 code is a malfunctioning kickdown hold relay, This can be due to electrical issues or internal relay failure. 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
P1907 indicates Kickdown Hold Relay Open or Short Circuit to Ground.
Common causes
Common causes include Faulty Kickdown Hold Relay: The most common cause of the P1907 code is a malfunctioning kickdown hold relay, This can be due to electrical issues or internal relay failure.
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 07, 2024
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Code P1907 Description

The diagnostic trouble code P1907 indicates that there is an issue with the kickdown hold relay in the vehicle's transmission system. This relay is responsible for controlling the transmission's kickdown function, which allows the transmission to downshift when the accelerator pedal is fully pressed.

OBDII Code P1907 - Kickdown Hold Relay Open or Short Circuit to Ground
P1907 Code - Kickdown Hold Relay Open or Short Circuit to Ground

Common Causes of P1907

  1. Faulty Kickdown Hold Relay: The most common cause of the P1907 code is a malfunctioning kickdown hold relay. This can be due to electrical issues or internal relay failure.

Symptoms of P1907

  1. Delayed or Erratic Shifting: The transmission may exhibit delayed or erratic shifting patterns, especially when accelerating or decelerating.

How to Fix P1907

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the P1907 code and perform a thorough inspection of the kickdown hold relay, wiring, and TCM for any visible signs of damage or corrosion.

Cost to Fix P1907

The typical repair costs for addressing the P1907 code can vary depending on the extent of the issue and the specific components that need to be replaced. In general, the cost of replacing a kickdown hold relay and repairing any wiring issues can range from $150 to $300, including parts and labor. Additional costs may apply if the TCM needs to be replaced or if there are other underlying transmission problems.

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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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