P085B Code - Gear Shift Control Module 'B' Communication Circuit Low
Quick Answer
The P085B diagnostic trouble code (DTC) indicates a problem with the Gear Shift Control Module 'B' Communication Circuit being detected as low. Common causes include Faulty Gear Shift Control Module, Wiring or connection issues in the communication circuit, Corrosion or damage to the connectors. 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
- P085B indicates Gear Shift Control Module 'B' Communication Circuit Low.
- Common causes
- Common causes include Faulty Gear Shift Control Module, Wiring or connection issues in the communication circuit, Corrosion or damage to the connectors.
- 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 P085B Description
The P085B diagnostic trouble code (DTC) indicates a problem with the Gear Shift Control Module 'B' Communication Circuit being detected as low. This code is typically found in vehicles equipped with automatic transmissions. The Gear Shift Control Module is responsible for controlling the shifting of gears in the transmission based on various inputs from sensors and switches. When the communication circuit is detected as low, it means that there is a malfunction in the electrical communication between the module and the rest of the vehicle's systems.
Common Causes of P085B
- Faulty Gear Shift Control Module
- Wiring or connection issues in the communication circuit
- Corrosion or damage to the connectors
- Electrical interference from other components
- Software or programming issues
Symptoms of P085B
- Difficulty shifting gears or inability to shift at all
- Transmission slipping or jerking
- Illumination of the Check Engine Light
- Loss of power or acceleration
- Limp mode activation
How to Fix P085B
- Perform a thorough inspection of the Gear Shift Control Module and its connections
- Check for any damaged or corroded wiring and repair as necessary
- Clear the DTC and reset the module to see if the issue recurs
- Test the communication circuit for proper voltage and continuity
- If needed, replace the Gear Shift Control Module or repair any damaged components
Cost to Fix P085B
The typical repair costs for addressing a Gear Shift Control Module 'B' Communication Circuit Low issue can range from $200 to $500, including parts and labor. However, the specific cost can vary depending on the make and model of the vehicle, the location of the repair shop, and the extent of the damage. It is recommended to consult with a professional mechanic to get an accurate estimate for your specific situation.
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