U0620

Lost Communication With Exhaust Gas Temperature Sensor Bank 1 Sensor 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Deteriorating fuel economy
Possible transition to emergency mode
Problems with the exhaust gas recirculation system

Causes

Open or short circuit in the sensor circuit
Malfunction of the exhaust temperature sensor itself
Poor contact in the sensor connector
Wiring harness damage
Problems with the engine control unit

How to Fix

Check the integrity of the sensor circuit (resistance, voltage)
Inspect the sensor connector and contacts for oxidation
Check the functionality of the EGT sensor
If necessary, replace the exhaust temperature sensor
Check the condition of the wiring harness in the area to the sensor

Related codes

U0615 U0625 U0630