U064E

Lost Communication With EGR Cooler Bypass Position Sensor Bank 1

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
Deterioration in acceleration dynamics
Increased fuel consumption
Unstable operation at idle

Causes

Open or short circuit in the sensor circuit
EGR cooler bypass position sensor malfunction
Problems with the connector or wiring harness
EGR cooler malfunction
Problems with the engine ECU

How to Fix

Check the integrity of the sensor circuit
Check the connector and wiring harness for damage
Test EGR cooler bypass position sensor
Check the operation of the EGR cooler
If necessary, replace the EGR sensor or cooler

Related codes

U064D U064F U0650