The P0955 code is an OBD-II trouble code that indicates an issue with the Auto Shift Manual Mode Circuit. This code is primarily associated with vehicles equipped with automatic transmissions that offer a manual shifting option, often referred to as Autostick Shifting.
What Does the P0955 Code Mean?
The P0955 code signifies a malfunction in the Auto Shift Manual Mode Circuit. When this code is triggered, it indicates that the powertrain control module (PCM) has detected a fault related to the manual shifting feature of the automatic transmission.
What Causes the P0955 Code?
Several factors can lead to the P0955 code being set, including:
- Autostick shift switch failure
- Powertrain Control Module (PCM) failure
- Wiring issues related to the circuit
What Are the Symptoms of the P0955 Code?
Common symptoms associated with the P0955 code include:
- Disabling of the Autostick shifting functionality
- Warning lights on the dashboard, such as the check engine light
How Serious Is the P0955 Code?
The P0955 code is classified as urgent. It indicates a significant malfunction that may lead to severe damage to the vehicle or pose safety risks to the driver and passengers. Immediate action is recommended to diagnose and repair the issue.
How to Diagnose the P0955 Code
Diagnosing the P0955 code typically involves the following steps:
- Use an OBD-II scanner to confirm the presence of the P0955 code and check for any related trouble codes.
- Inspect the Autostick shift switch for proper operation.
- Examine the wiring and connectors associated with the Auto Shift Manual Mode Circuit for any signs of damage or wear.
- Test the Powertrain Control Module (PCM) to ensure it’s functioning correctly.
Common Repairs for the P0955 Code
Repairs for the P0955 code may include:
- Replacing the Autostick shift switch if found faulty.
- Repairing or replacing damaged wiring and connectors.
- Reprogramming or replacing the Powertrain Control Module (PCM) if necessary.
How Much Does It Cost to Fix the P0955 Code?
The cost to repair the P0955 code can vary widely depending on the specific issue and the vehicle model. On average, repairs can range from $150 to $1,000, especially if the PCM requires reprogramming or replacement.
Can I Fix the P0955 Code Myself?
While some aspects of diagnosing and repairing the P0955 code can be done by a knowledgeable DIYer, it is essential to have a good understanding of automotive systems. If you’re not experienced with electrical diagnostics or transmission systems, seeking professional assistance is advisable to avoid further complications.
