OBD Guide

P0C1B

Electric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Too High

P0C1B is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Too High. Common causes: control module overload, insufficient module cooling. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Gear shifting problems
  • Reduced transmission efficiency
  • Pump control module overheating
  • Unusual noises from the transmission

Causes

  • Control module overload
  • Insufficient module cooling
  • Electrical power supply fault
  • Grounding problems
  • Mechanical pump problems

How to Fix

  1. Check the control module cooling system
  2. Diagnose the electrical power and grounding circuit
  3. Check the mechanical condition of the pump
  4. Replace the control module if necessary
  5. Eliminate external overheating factors

Related codes

Error P0C1B by Vehicle Brand

FAQ

What does the P0C1B code mean?

P0C1B is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Too High

What causes a P0C1B error code?

The most common causes of P0C1B include: Control module overload; Insufficient module cooling; Electrical power supply fault; Grounding problems.

How do I fix a P0C1B diagnostic trouble code?

To fix P0C1B: Check the control module cooling system. Diagnose the electrical power and grounding circuit. Check the mechanical condition of the pump. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0C1B?

Limited driving only, diagnose soon

How much does it cost to fix P0C1B?

The estimated repair cost for P0C1B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat