U069A

Lost Communication With Exhaust Gas Temperature Sensor Bank 1 Sensor 3

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unstable engine operation at idle
Problems with the EGR system

Causes

Open or short circuit in the sensor circuit
Damage to the sensor connector
Exhaust temperature sensor malfunction
Problems with the ECU
Contact corrosion

How to Fix

Check the integrity of wiring and connectors
Measure the resistance of the exhaust temperature sensor
Check the voltage in the sensor circuit
Replace exhaust temperature sensor if necessary
Update ECU firmware (if required)

Related codes

U069B U069C U069D