U0690

Lost Communication With EGR Temperature Sensor D

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine Light Is On
Poor engine performance at idle
Increased fuel consumption
Increased emissions of harmful substances
Possible misfires

Causes

Open or short circuit in the sensor circuit
EGR temperature sensor malfunction
Poor contact in the sensor connector
Wiring harness damage
ECU malfunction

How to Fix

Check the continuity of the EGR temperature sensor circuit
Check the resistance and functionality of the sensor
Inspect and clean the sensor connector contacts
Check wiring harness for damage
If necessary, replace the EGR temperature sensor

Related codes

U0691 U0692 P0401