P187C
Gear Block Reverse
P187C is an OBD-II diagnostic trouble code meaning: Gear Block Reverse. Common causes: reverse lock solenoid malfunction, problems with the hydraulic transmission system. Estimated repair cost: $28–167.
Symptoms
- Inability to engage reverse
- Delay when shifting into reverse
- Jerking or jerking when engaging reverse gear
- Check Engine Light Is On
- Transmission emergency mode
Causes
- Reverse lock solenoid malfunction
- Problems with the hydraulic transmission system
- Worn or damaged mechanical components
- Low or contaminated transmission fluid
- Problems with wiring or contacts
How to Fix
- Check the level and condition of the transmission fluid
- Diagnosis of the reverse lock solenoid
- Check the hydraulic pressure in the system
- Inspect the gear shift mechanism
- Check electrical connections and wiring
Related codes
FAQ
What does the P187C code mean?
P187C is an OBD-II diagnostic trouble code that indicates: Gear Block Reverse
What causes a P187C error code?
The most common causes of P187C include: Reverse lock solenoid malfunction; Problems with the hydraulic transmission system; Worn or damaged mechanical components; Low or contaminated transmission fluid.
How do I fix a P187C diagnostic trouble code?
To fix P187C: Check the level and condition of the transmission fluid. Diagnosis of the reverse lock solenoid. Check the hydraulic pressure in the system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P187C?
Limited driving only, diagnose soon
How much does it cost to fix P187C?
The estimated repair cost for P187C is $28–167. Actual cost depends on your vehicle, location, and labor rates.
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