U059E

Invalid Data Received From NOx Sensor A

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
Deteriorating fuel economy
Problems with passing technical inspection
Possible transition to emergency mode

Causes

NOx sensor A fault
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
ECU software error
Sensor contamination with combustion products

How to Fix

Check NOx sensor parameters using a diagnostic scanner
Inspect the sensor wiring and connectors for damage
Check the power supply and ground of the sensor
If necessary, replace NOx sensor A
Update ECU firmware (if available)

Related codes

U059F U05A0 P2200