P085B
Gear Shift Control Module B Communication Circuit Low
P085B is an OBD-II diagnostic trouble code meaning: Gear Shift Control Module B Communication Circuit Low. Common causes: damage to wiring or connectors, poor contact in control circuit. Estimated repair cost: $56–167.
Symptoms
- Incorrect gear shifting
- Switching to emergency mode of the gearbox
- Check Engine light comes on
- Loss of engine power
- Problems starting the engine
Causes
- Damage to wiring or connectors
- Poor contact in control circuit
- Shift module malfunction
- Problems with module power or grounding
- Short circuit in the circuit
How to Fix
- Check the integrity of wiring and connectors
- Check voltage and grounding of the module
- Scan the module for additional errors
- Replace the gear shift module if necessary
- Check the operation of the gearbox after repair
Related codes
Error P085B by Vehicle Brand
FAQ
What does the P085B code mean?
P085B is an OBD-II diagnostic trouble code that indicates: Gear Shift Control Module B Communication Circuit Low
What causes a P085B error code?
The most common causes of P085B include: Damage to wiring or connectors; Poor contact in control circuit; Shift module malfunction; Problems with module power or grounding.
How do I fix a P085B diagnostic trouble code?
To fix P085B: Check the integrity of wiring and connectors. Check voltage and grounding of the module. Scan the module for additional errors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P085B?
Limited driving only, diagnose soon
How much does it cost to fix P085B?
The estimated repair cost for P085B is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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