P0354 Fault Code

Ignition Coil D Primary/Secondary Circuit Malfunction

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0354 fault code indicates a malfunction in the primary or secondary circuit of Ignition Coil D. It can disrupt the engine's ignition system, leading to performance issues.

What are the symptoms of the P0354 code?

Drivers may experience various symptoms, such as:

• Engine misfires, leading to rough idle and stalling
• Reduced engine power and acceleration
• Check Engine Light (CEL) illuminated on the dashboard
• Increased fuel consumption due to inefficiencies in the ignition system.

What causes the P0354 code?

Several factors can contribute to this fault code, including:

• Faulty ignition coil D
• Poor electrical connections or damaged wiring in the ignition system
• Issues with the Engine Control Module (ECM)
• A malfunctioning crankshaft or camshaft position sensor
• Engine misfires or excessive vibration impacting the ignition system.

How to fix P0354?

To resolve the P0354 code, the following steps should be taken:

• Inspect and replace ignition coil D if it is faulty.
• Check and repair any damaged wiring or poor connections in the ignition system.
• Test the ECM for functionality and ensure it is synced properly with the vehicle's sensors.
• If necessary, replace malfunctioning crankshaft or camshaft position sensors.