P0350
PowertrainIgnition Systemmoderate severityIgnition Coil Primary/Secondary Circuit Malfunction
What P0350 Means
A general fault has been detected in an ignition coil primary or secondary circuit. This can cause misfires and reduced performance.
Symptoms
- Engine misfire
- Rough idle
- Reduced power
Common Causes
- Faulty ignition coil
- Coil wiring or connector fault
- Bad spark plug
- PCM driver fault
Diagnostic Steps
- Scan for specific coil codes
- Inspect coil connectors and wiring
- Test coil primary/secondary resistance
- Swap coil to confirm fault
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
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