P2A63

Alternative Fuel Tank B Level Sensor Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect fuel level readings in the additional tank
Flashing fuel level indicator
Spontaneous change in level readings
Errors in calculating remaining mileage

Causes

Poor contact in the sensor connector
Open or short circuit in the sensor circuit
Malfunction of the level sensor itself
Circuit Grounding Problems
Contact corrosion

How to Fix

Check sensor connections and connectors
Test the sensor circuit for open and short circuits
Check the resistance of the level sensor
Replace the level sensor if necessary
Clean contacts from corrosion

Related codes

P2A64 P2A65 P2063