P0C1B

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

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

Check the control module cooling system
Diagnose the electrical power and grounding circuit
Check the mechanical condition of the pump
Replace the control module if necessary
Eliminate external overheating factors

Related codes

P0C1A P0C1C P0C1D