P187B
Gear Block 6th
P187B is an OBD-II diagnostic trouble code meaning: Gear Block 6th. Common causes: low transmission fluid level, contaminated transmission fluid. Estimated repair cost: $17–111.
Symptoms
- The car does not shift into 6th gear
- Gear shifting occurs with a delay
- Dips in power during acceleration
- Check Engine light comes on
- The gearbox goes into emergency mode
Causes
- Low transmission fluid level
- Contaminated transmission fluid
- Shift solenoid malfunction
- Problems with gearbox mechanics
- Malfunction of the transmission control unit
How to Fix
- Check the level and condition of the transmission fluid
- Flush the system and replace the fluid if necessary
- Check the operation of the gearshift solenoids
- Diagnose the mechanical part of the gearbox
- Check and, if necessary, replace the transmission control unit
Related codes
FAQ
What does the P187B code mean?
P187B is an OBD-II diagnostic trouble code that indicates: Gear Block 6th
What causes a P187B error code?
The most common causes of P187B include: Low transmission fluid level; Contaminated transmission fluid; Shift solenoid malfunction; Problems with gearbox mechanics.
How do I fix a P187B diagnostic trouble code?
To fix P187B: Check the level and condition of the transmission fluid. Flush the system and replace the fluid if necessary. Check the operation of the gearshift solenoids. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P187B?
Yes, but get it checked soon
How much does it cost to fix P187B?
The estimated repair cost for P187B is $17–111. Actual cost depends on your vehicle, location, and labor rates.
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