Helpful Automotive Resources
P0354 Code: Ignition Coil “D” Primary/Secondary CircuitThe powertrain control system (PCM) manages the ignition coils that ignite the spark plugs at precisely the right time. If the PCM detects a potential problem with the ignition coil “D” (which is the cylinder #4 ignition coil) or its circuit, code P0354 may be set.
What Does the P0354 Code Why Won’t My Car Start?It never fails—when your car refuses to start, it happens at the most inopportune time. It’s always when, say, you’re running late for a critical doctor’s appointment or a big work meeting. What makes things worse is that you usually have no idea why your car won’t start.