P0352 Ford Ranger
Ignition Coil B Primary/Secondary Circuit Malfunction · Powertrain Code · High · Repair: Easy
What is P0352?
The ignition coil for cylinder 2 has an electrical fault.
When the Ford Ranger triggers code P0352 (ignition coil b primary/secondary circuit malfunction), it typically points to an issue in the powertrain system. This is a high severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Ford Ranger.
This repair is rated easy, meaning basic tools, no lift needed.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Ford Ranger.
Common Causes on Ford Ranger
- Failed ignition coil on cylinder 2
- Damaged coil connector from heat exposure
- Wiring fault between PCM and coil pack
- Carbon tracking on the coil boot causing spark leak
Symptoms
- Check engine light
- Cylinder 2 misfire
- Rough idle
- Loss of power under acceleration
Notes for Ford Ranger
Always replace the spark plug when replacing a coil pack — a worn plug can kill a new coil prematurely.