OBD Guide

P0C26

Electric/Auxiliary Transmission Fluid Pump A Motor Current

P0C26 is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump A Motor Current. Common causes: pump motor malfunction, open or short circuit in the power supply. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Check Engine light comes on
  • Gear shifting problems
  • Transmission transition to emergency mode
  • Unusual noises from the transmission area
  • Reduced transmission efficiency

Causes

  • Pump motor malfunction
  • Open or short circuit in the power supply
  • Relay or fuse problems
  • Transmission control unit malfunction
  • Poor contact in connectors

How to Fix

  1. Check fuses and relays associated with the pump
  2. Diagnose the pump motor power supply circuit
  3. Check the resistance of the motor windings
  4. Inspect connectors and wiring harness for damage
  5. If necessary, replace the transmission fluid pump

Related codes

Error P0C26 by Vehicle Brand

FAQ

What does the P0C26 code mean?

P0C26 is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump A Motor Current

What causes a P0C26 error code?

The most common causes of P0C26 include: Pump motor malfunction; Open or short circuit in the power supply; Relay or fuse problems; Transmission control unit malfunction.

How do I fix a P0C26 diagnostic trouble code?

To fix P0C26: Check fuses and relays associated with the pump. Diagnose the pump motor power supply circuit. Check the resistance of the motor windings. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0C26?

Limited driving only, diagnose soon

How much does it cost to fix P0C26?

The estimated repair cost for P0C26 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat