U05A8

Invalid Data Received From NOx Sensor C

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Problems with passing technical inspection
Unstable engine operation at idle

Causes

NOx C sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Problems with the engine control unit
Sensor is dirty or damaged

How to Fix

Check continuity of NOx C sensor circuit
Inspect the sensor connector for damage
Check the functionality of the NOx C sensor
Replace NOx C sensor if necessary
Update control unit software

Related codes

U05A7 U05A9 U05AA