OBD Guide

P0B0C

Electric/Auxiliary Transmission Fluid Pump A Hydraulic Leakage

P0B0C is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump A Hydraulic Leakage. Common causes: worn or damaged pump seals, mechanical damage to the pump housing. Estimated repair cost: $28–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–167 (est.)

Symptoms

  • Reduced transmission efficiency
  • The Check Engine light comes on
  • Transmission fluid leaks under the car
  • Noises or humming from the transmission area
  • Gear shifting problems

Causes

  • Worn or damaged pump seals
  • Mechanical damage to the pump housing
  • Loose hydraulic line connections
  • Low quality transmission fluid
  • Corrosion or damage to pump components

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Inspect the pump and surrounding components for leaks
  3. Replace damaged seals or gaskets
  4. If necessary, replace the transmission fluid pump
  5. Check hydraulic connections for leaks

Related codes

Error P0B0C by Vehicle Brand

FAQ

What does the P0B0C code mean?

P0B0C is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump A Hydraulic Leakage

What causes a P0B0C error code?

The most common causes of P0B0C include: Worn or damaged pump seals; Mechanical damage to the pump housing; Loose hydraulic line connections; Low quality transmission fluid.

How do I fix a P0B0C diagnostic trouble code?

To fix P0B0C: Check the level and condition of the transmission fluid. Inspect the pump and surrounding components for leaks. Replace damaged seals or gaskets. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0B0C?

Limited driving only, diagnose soon

How much does it cost to fix P0B0C?

The estimated repair cost for P0B0C is $28–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat