P340D
Deactivation/Exhaust Valve Control Circuit Bank 2
P340D is an OBD-II diagnostic trouble code meaning: Deactivation/Exhaust Valve Control Circuit Bank 2. Common causes: open or short circuit in control circuit, deactivation solenoid valve malfunction. Estimated repair cost: $28–89.
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
Error P340D by Vehicle Brand
FAQ
What does the P340D code mean?
P340D is an OBD-II diagnostic trouble code that indicates: Deactivation/Exhaust Valve Control Circuit Bank 2
What causes a P340D error code?
The most common causes of P340D include: Open or short circuit in control circuit; Deactivation solenoid valve malfunction; Wiring Harness Problems; Engine control unit malfunction.
How do I fix a P340D diagnostic trouble code?
To fix P340D: Check valve control circuit integrity. Check the resistance and operation of the solenoid valve. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P340D?
Yes, but get it checked soon
How much does it cost to fix P340D?
The estimated repair cost for P340D is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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