What Does the P0860 Code Mean?
The P0860 code is defined as a fault in the Gear Shift Control Module “A” Communication Circuit. This indicates that there is a failure in communication between the Transmission Control Module (TCM) and the Powertrain Control Module (PCM). This communication is crucial for proper vehicle performance.
What Causes the P0860 Code?
Several factors can trigger the P0860 code, including:
- Failure of the Powertrain Control Module (PCM)
- Failure of the Transmission Control Module (TCM)
- Wiring issues or damaged connectors
What Are the Symptoms of the P0860 Code?
Drivers may experience a variety of symptoms associated with the P0860 code, including:
- The engine may not start
- Transmission may not shift properly
How Serious Is the P0860 Code?
The P0860 code is classified as an urgent issue. It indicates significant malfunctions that could lead to severe damage to the vehicle or pose safety risks for the driver and passengers. Immediate attention is recommended.
How to Diagnose the P0860 Code
To properly diagnose the P0860 code, a mechanic should:
- Use an OBD-II scanner to confirm the presence of the P0860 code.
- Inspect the wiring and connectors associated with the TCM and PCM for any damage or loose connections.
- Check the TCM and PCM for faults or failures through further diagnostic testing.
Common Repairs for the P0860 Code
Repair options for the P0860 code may include:
- Repairing or replacing damaged wiring or connectors
- Replacing a faulty Transmission Control Module (TCM)
- Replacing a faulty Powertrain Control Module (PCM)
How Much Does It Cost to Fix the P0860 Code?
The cost to repair the P0860 code can vary significantly depending on the underlying issue. Typical costs may range from:
- $100 to $300 for wiring repairs
- $300 to $800 for TCM replacement
- $400 to $1200 for PCM replacement
Can I Fix the P0860 Code Myself?
While some aspects of diagnosing and fixing the P0860 code can be attempted by an experienced DIYer, it is recommended to consult with a professional mechanic. Proper diagnosis and repair are critical to ensure that the issue is resolved effectively and safely.
