P07CB

Transmission Fluid Thermostat Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect gear shifting
Transmission fluid overheating
Increased fuel consumption
Check Engine light comes on
Reduced vehicle performance

Causes

Faulty transmission fluid thermostat
Transmission fluid contamination
Problems with the thermostat electrical circuit
Mechanical damage to the thermostat
Transmission control unit software errors

How to Fix

Check the level and condition of the transmission fluid
Check the thermostat electrical circuit
Replace transmission fluid thermostat
Check and update transmission control unit software
Flush the transmission fluid system if necessary

Related codes

P07CC P07CD P07CE