U3560

Cathode Backpressure Valve Position Sensor Circuit

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 idling
Increased emissions

Causes

Valve position sensor malfunction
Open or short circuit in the sensor circuit
Poor connection or corroded connectors
Mechanical failure of the back pressure valve
Wiring Harness Problems

How to Fix

Check the integrity of the sensor circuit
Check sensor connections and connectors
Check the functionality of the valve position sensor
Check the mechanical operation of the back pressure valve
Replace faulty components

Related codes

U3550 U3561 U3562