Engine-CodesBuick – P1667 Buick

P1667 Buick Code - Reverse Inhibit Solenoid Control Circuit

Quick Answer

The P1667 Buick code refers to an issue with the Reverse Inhibit Solenoid Control Circuit. Common causes include Faulty Reverse Inhibit Solenoid, Wiring or connection issues in the solenoid control circuit, Corrosion or damage to the electrical connectors. 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
P1667 Buick indicates Reverse Inhibit Solenoid Control Circuit.
Common causes
Common causes include Faulty Reverse Inhibit Solenoid, Wiring or connection issues in the solenoid control circuit, Corrosion or damage to the electrical connectors.
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 Aug 30, 2024
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Code P1667 Buick Description

The P1667 Buick code refers to an issue with the Reverse Inhibit Solenoid Control Circuit. This solenoid is responsible for preventing the vehicle from shifting into reverse while it is moving forward, which is a safety feature designed to prevent accidents. When this code is triggered, it indicates a problem with the circuit that controls this solenoid, potentially leading to the inability to shift into reverse or erratic shifting behavior.

OBDII Code P1667 Buick - Reverse Inhibit Solenoid Control Circuit
P1667 Buick Code - Reverse Inhibit Solenoid Control Circuit

Common Causes of P1667 Buick

  1. Faulty Reverse Inhibit Solenoid.
  2. Wiring or connection issues in the solenoid control circuit.
  3. Corrosion or damage to the electrical connectors.
  4. Faulty transmission control module (TCM).
  5. Mechanical issues within the transmission affecting solenoid operation.

Symptoms of P1667 Buick

  1. Inability to shift into reverse gear.
  2. Delayed or jerky shifting when trying to engage reverse.
  3. Dashboard warning light indicating transmission or solenoid issues.
  4. Vehicle may get stuck in neutral or another gear when trying to shift into reverse.
  5. Transmission slipping or erratic behavior.

How to Fix P1667 Buick

  1. Begin by diagnosing the specific cause of the issue, using a scan tool to read the code and checking the solenoid and circuit for faults.
  2. Replace the Reverse Inhibit Solenoid if it is found to be faulty.
  3. Check and repair any damaged wiring or connectors in the control circuit.
  4. Test the transmission control module (TCM) for proper function and replace if necessary.
  5. Clear the code from the vehicle's computer system and test the vehicle to ensure proper operation.

Cost to Fix P1667 Buick

The cost of repairing a P1667 Buick code can vary depending on the specific cause of the issue and the labor rates at the repair shop. On average, the repair cost for this type of issue can range from $200 to $500, including parts and labor. It is important to note that additional costs may be incurred if other components need to be replaced or if further diagnostics are required. It is recommended to obtain quotes from multiple repair shops to compare prices and ensure a fair 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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