P0A38

Generator Temperature Sensor Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine Light Is On
Charging system is not working properly
Reduced generator efficiency
Possible battery problems

Causes

Generator temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in connectors
Engine control unit (ECU) malfunction

How to Fix

Check generator temperature sensor
Check the sensor circuit for open circuit and short circuit
Check connectors and contacts
If necessary, replace the generator temperature sensor

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