P2A66

Alternative Fuel Tank C Level Sensor Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect fuel level readings in the alternative tank
Check Engine Light Is On
Problems with switching between fuel types
Reduced engine power

Causes

Fuel level sensor malfunction
Open or short circuit in the sensor circuit
Poor connection or corroded contacts
Problems with the fuel system control unit
Mechanical damage to the sensor

How to Fix

Check the continuity of the fuel level sensor circuit
Check the connections and contacts of the sensor
Test the fuel level sensor
Replace the faulty sensor if necessary
Reset the error code and check the system

Related codes

P2A65 P2A67 P2066