P085A
Gear Shift Control Module B Communication Circuit
P085A is an OBD-II diagnostic trouble code meaning: Gear Shift Control Module B Communication Circuit. Common causes: open or short circuit in the module communication circuit, damaged connectors or corrosion. Estimated repair cost: $56–167.
Symptoms
- Gear shift delays
- The gearbox goes into emergency mode
- Check Engine light comes on
- Unstable gearbox operation
- Power Loss
Causes
- Open or short circuit in the module communication circuit
- Damaged connectors or corrosion
- Shift control module B malfunction
- Module power problems
- Software error in the module
How to Fix
- Check the integrity of the communication circuit
- Inspect connectors for damage and corrosion
- Check power supply and grounding of the module
- Scan the module for errors
- Replace shift control module B if necessary
Related codes
Error P085A by Vehicle Brand
FAQ
What does the P085A code mean?
P085A is an OBD-II diagnostic trouble code that indicates: Gear Shift Control Module B Communication Circuit
What causes a P085A error code?
The most common causes of P085A include: Open or short circuit in the module communication circuit; Damaged connectors or corrosion; Shift control module B malfunction; Module power problems.
How do I fix a P085A diagnostic trouble code?
To fix P085A: Check the integrity of the communication circuit. Inspect connectors for damage and corrosion. Check power supply and grounding of the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P085A?
Limited driving only, diagnose soon
How much does it cost to fix P085A?
The estimated repair cost for P085A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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