The P0956 code is an OBD-II trouble code that indicates a problem with the Auto Shift Manual Mode Circuit. This code is associated with vehicles that feature Autostick shifting, which allows drivers to manually select gears while driving.
What Does the P0956 Code Mean?
The P0956 code specifically refers to an issue in the Auto Shift Manual Mode Circuit’s range or performance. It suggests that the Powertrain Control Module (PCM) has detected that the system is not functioning as expected, potentially due to a malfunctioning component or wiring issue.
What Causes the P0956 Code?
Several factors can trigger the P0956 code, including:
- Autostick shift switch failure
- Powertrain Control Module (PCM) failure
- Wiring issues within the Autostick system
What Are the Symptoms of the P0956 Code?
The primary symptom associated with the P0956 code is the disabling of the Autostick shifting feature. Drivers may notice that they cannot manually select gears as intended.
How Serious Is the P0956 Code?
The P0956 code is considered urgent as it indicates a significant malfunction that can affect vehicle performance. Ignoring this code could lead to further damage to the transmission or other related components, as well as potential safety risks for the driver and passengers.
How to Diagnose the P0956 Code
To diagnose the P0956 code, a mechanic will typically perform the following steps:
- Use an OBD-II scanner to confirm the presence of the P0956 code.
- Inspect the vehicle’s wiring and connectors associated with the Autostick system for damage or corrosion.
- Test the Autostick shift switch for proper functionality.
- Check the Powertrain Control Module (PCM) for any faults or issues.
Common Repairs for the P0956 Code
Repairs for the P0956 code may include:
- Replacing a faulty Autostick shift switch
- Repairing or replacing damaged wiring
- Reprogramming or replacing the Powertrain Control Module (PCM)
How Much Does It Cost to Fix the P0956 Code?
The cost to fix the P0956 code can vary widely based on the root cause of the issue. On average, repairs can range from $100 to $800, depending on whether it involves simple wiring repairs or more complex PCM replacements.
Can I Fix the P0956 Code Myself?
While some basic troubleshooting can be done at home, such as checking wiring and connectors, it is recommended to seek professional help for a thorough diagnosis and repair. Proper diagnostic tools and experience are necessary to address the underlying issues effectively.
