Engine-CodesLexus – P0986 Lexus

P0986 Lexus Code - Shift Solenoid 'E' Control Circuit High

Quick Answer

The P0986 diagnostic trouble code for Lexus vehicles indicates a problem with the Shift Solenoid 'E' Control Circuit being too high. Common causes include Faulty shift solenoid 'E', Wiring issues or short circuits in the control circuit, Problems with the 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
P0986 Lexus indicates Shift Solenoid 'E' Control Circuit High.
Common causes
Common causes include Faulty shift solenoid 'E', Wiring issues or short circuits in the control circuit, Problems with the 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 P0986 Lexus Description

The P0986 diagnostic trouble code for Lexus vehicles indicates a problem with the Shift Solenoid 'E' Control Circuit being too high. The shift solenoid is an essential component of the transmission system that controls the flow of transmission fluid to engage specific gears. In this case, a high voltage in the control circuit of Shift Solenoid 'E' can cause issues with gear shifting, potentially leading to harsh shifting, delayed shifting, or even failure to shift at all.

OBDII Code P0986 Lexus - Shift Solenoid 'E' Control Circuit High
P0986 Lexus Code - Shift Solenoid 'E' Control Circuit High

Common Causes of P0986 Lexus

  1. Faulty shift solenoid 'E'
  2. Wiring issues or short circuits in the control circuit
  3. Problems with the transmission control module
  4. Low transmission fluid levels
  5. Electrical issues in the transmission system

Symptoms of P0986 Lexus

  1. Harsh or delayed shifting between gears
  2. Failure to shift into certain gears
  3. Transmission slipping
  4. Illuminated check engine light
  5. Decreased fuel efficiency

How to Fix P0986 Lexus

  1. Begin by checking the transmission fluid level and condition, topping off or replacing if necessary.
  2. Inspect the wiring and connections in the control circuit of Shift Solenoid 'E' for any signs of damage or corrosion.
  3. Test the shift solenoid 'E' for proper function or replace it if necessary.
  4. Clear the code with a diagnostic scanner and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to pinpoint the exact cause of the high voltage in the control circuit.

Cost to Fix P0986 Lexus

The cost of repairing the Shift Solenoid 'E' Control Circuit High issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the parts for this repair can range from $100 to $300, while labor costs can add an additional $100 to $200. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops may offer more competitive pricing. It's recommended to obtain quotes from multiple auto repair shops to find the best deal for your specific situation.

When is the Code Detected?

Engine Control Module (ECM) detectes an open or shorted condition on the solenoid circuit

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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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