P085C Code - Gear Shift Control Module 'B' Communication Circuit High
Quick Answer
The P085C diagnostic trouble code (DTC) refers to a problem with the Gear Shift Control Module 'B' Communication Circuit High. Common causes include Damaged wiring or connectors, Faulty gear shift control module, Malfunctioning 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
- P085C indicates Gear Shift Control Module 'B' Communication Circuit High.
- Common causes
- Common causes include Damaged wiring or connectors, Faulty gear shift control module, Malfunctioning 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.
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Code P085C Description
The P085C diagnostic trouble code (DTC) refers to a problem with the Gear Shift Control Module 'B' Communication Circuit High. This code indicates that there is a communication issue between the gear shift control module and the vehicle's onboard computer system. The gear shift control module is responsible for managing the operation of the transmission, including shifting gears and engaging the appropriate drive mode. When the communication circuit is reading as high, it means that there is a malfunction in the data transmission between the module and the vehicle's computer.
Common Causes of P085C
- Damaged wiring or connectors
- Faulty gear shift control module
- Malfunctioning transmission control module
- Issues with the vehicle's computer system
- Corrosion or moisture in the communication circuit
Symptoms of P085C
- Erratic shifting behavior
- Difficulty changing gears
- Transmission slipping
- Check Engine Light illuminated
- Limp mode activation
How to Fix P085C
- Perform a thorough inspection of the wiring and connectors associated with the gear shift control module.
- Test the gear shift control module and transmission control module for any faults using a diagnostic scanner.
- Check the vehicle's computer system for any communication errors and reset if necessary.
- Replace any damaged wiring, connectors, or faulty modules as needed.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P085C
The typical repair costs for addressing a P085C code can vary depending on the specific cause of the issue. In general, the cost of parts and labor for this repair can range from $200 to $800 or more. It's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check with local repair shops for a more accurate estimate.
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