P340D

Deactivation/Exhaust Valve Control Circuit Bank 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Increased fuel consumption
Deterioration in acceleration dynamics
Unstable engine operation at idle
The Check Engine light comes on
Disabling the cylinder deactivation system

Causes

Open or short circuit in control circuit
Deactivation solenoid valve malfunction
Wiring Harness Problems
Engine control unit malfunction
Mechanical damage to the deactivation valve

How to Fix

Check valve control circuit integrity
Check the resistance and operation of the solenoid valve
Inspect the wiring harness for damage
Check connections and contacts in the circuit
If necessary, replace the deactivation valve

Related codes

P340C P340E P340F