Engine-CodesGeneric – P0950

P0950 Code - Auto Shift Manual Control Circuit

Quick Answer

The P0950 diagnostic trouble code (DTC) relates to the Auto Shift Manual Control Circuit. Common causes include Faulty Auto Shift Manual Control Switch, Malfunctioning transmission control module (TCM), Wiring or connector issues in the Auto Shift Manual Control Circuit. 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
P0950 indicates Auto Shift Manual Control Circuit.
Common causes
Common causes include Faulty Auto Shift Manual Control Switch, Malfunctioning transmission control module (TCM), Wiring or connector issues in the Auto Shift Manual Control Circuit.
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 12, 2024
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Code P0950 Description

The P0950 diagnostic trouble code (DTC) relates to the Auto Shift Manual Control Circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the automatic transmission's manual shifting mode. In vehicles equipped with this feature, the Auto Shift Manual Control Circuit allows the driver to manually select gears, providing a more engaging driving experience.

OBDII Code P0950 - Auto Shift Manual Control Circuit
P0950 Code - Auto Shift Manual Control Circuit

Common Causes of P0950

  1. Faulty Auto Shift Manual Control Switch
  2. Malfunctioning transmission control module (TCM)
  3. Wiring or connector issues in the Auto Shift Manual Control Circuit
  4. Low transmission fluid levels
  5. Internal transmission problems

Symptoms of P0950

  1. Difficulty shifting gears manually
  2. Harsh or delayed gear shifts
  3. Inability to engage manual mode
  4. Illumination of the check engine light

How to Fix P0950

  1. Begin by performing a thorough inspection of the Auto Shift Manual Control Circuit, checking for any damaged wiring or loose connections.
  2. Test the Auto Shift Manual Control Switch to ensure it is functioning correctly. Replace if necessary.
  3. Use a diagnostic scanner to check for any trouble codes stored in the TCM. Clear codes and retest the system.
  4. Check transmission fluid levels and condition. Top up or replace fluid as needed.
  5. If the issue persists, consult a professional technician to diagnose and repair any internal transmission problems.

Cost to Fix P0950

The cost of repairing the Auto Shift Manual Control Circuit can vary depending on the specific cause of the issue. On average, the repair costs for this type of problem can range from $200 to $500, including parts and labor. However, it's important to note that prices may fluctuate based on the location of the repair shop, the vehicle's make and model, and the extent of the repairs needed. Diagnosing the exact cause of the P0950 code may require additional time and labor charges, so it's advisable to get a detailed estimate from a qualified mechanic before proceeding with the repairs.

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Code P0950 Information for Specific Makes

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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