Ignition coil B primary/secondary circuit
What P0352 means
Your car's computer set P0352: Ignition coil B primary/secondary circuit. It belongs to the ignition system and misfire group of codes. It is a generic code, so it means the same thing on every make. The check engine light usually comes on once the fault has been seen on two drives in a row. Until then it shows up as a pending code.
Can I keep driving? Usually causes a misfire. If the engine shakes or the light flashes, stop driving soon.
Common causes
- Failed ignition coil
- Damaged coil connector or wiring
- Blown fuse or bad coil power supply
- Engine computer driver fault (rare)
Fix the cheapest, most likely cause first. Clearing the code without a repair only turns the light off until the fault comes back.
Check it yourself
Read codes for a matching misfire code (P030x). Check the connector on that coil.
Torque Deck reads P0352 with a cheap Bluetooth OBD2 adapter. It also shows the freeze frame (engine conditions at the moment the code set) and the live data you need to narrow it down.
Parts
Parts most often replaced for P0352: ignition coil. Confirm the cause first, and match the part to your exact engine.
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Related codes
This page explains what the code usually means. It is not a diagnosis of your car. When in doubt, ask a mechanic.