U069B

Lost Communication With Exhaust Gas Temperature Sensor Bank 1 Sensor 4

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Deterioration of vehicle dynamics
Increased fuel consumption
Possible misfires
Engine power limitation

Causes

Open or short circuit in the sensor circuit
Poor contact in the sensor connector
EGT temperature sensor malfunction
Wiring Harness Problems
Engine control unit malfunction

How to Fix

Check the integrity of the sensor circuit
Inspect the connector and contacts for corrosion
Check the resistance of the EGT sensor
Replace exhaust gas temperature sensor if necessary
Check the operation of the system after repair

Related codes

U069A U069C U069D