P0C1D

Electric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Sensor Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Irregular transmission operation
Reduced shift efficiency
Noises from the transmission area
In some cases - the transmission goes into emergency mode

Causes

Faulty temperature sensor in the pump module
Damaged wiring or poor contact in the sensor circuit
Problems with the pump control module
Contaminated or low transmission fluid level
Mechanical problems in the transmission fluid pump

How to Fix

Check the level and condition of the transmission fluid
Diagnose the temperature sensor circuit (wiring, connectors)
Check the temperature sensor readings with a scanner
If necessary, replace the temperature sensor or the entire pump module
Clear error codes and check if the fault returns

Related codes

P0C1C P0C1E P0C1F