P0A31

Drive Motor B Temperature Sensor Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Incorrect engine temperature readings on the dashboard

Causes

Engine temperature sensor B fault
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Problems with the engine control unit
Corroded contacts or damaged wiring

How to Fix

Check the condition of engine temperature sensor B
Check the integrity of the sensor circuit and connection
Clean connector contacts from corrosion
Replace temperature sensor if necessary
Check the operation of the engine control unit

Related codes

P0A32 P0A33 P0115