P01AB

Alternative Fuel Tank Temperature Sensor Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Difficulty starting the engine
Check Engine Light Illuminates

Causes

Fuel tank temperature sensor malfunction
Open or short circuit in wiring harness
Poor contact in the sensor connector
Problems with the ECU

How to Fix

Check the temperature sensor readings using a diagnostic scanner
Inspect the sensor wiring harness and connectors for damage.
Replace temperature sensor if necessary
Clean or replace connectors if corroded

Related codes

P01AC P01AD P0172 P0175