What does code P0352 mean on a Toyota and is it safe to drive?
P0352: Ignition Coil B Primary/Secondary Circuit Malfunction. Here's what it means on your Toyota, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
What this code means
The PCM detected a fault in the primary or secondary circuit of ignition coil B (cylinder 2 coil). Causes, symptoms, and fixes are the same as P0351 but affect cylinder 2.
Common causes for your Toyota
- Failed ignition coil on cylinder 2
- Fouled or worn spark plug on cylinder 2
- Damaged coil wiring or connector
- Faulty PCM driver circuit
Symptoms
- Check Engine Light on or flashing
- Rough idle / misfire on cylinder 2
- Reduced power and fuel economy
Typical fixes
- Replace ignition coil for cylinder 2
- Replace spark plug on cylinder 2
- Inspect coil wiring harness
Repair cost range
For a Toyota, repairs for P0352 often fall between $80 and $300, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Toyota
Toyota P0352 targets cylinder 2's coil-on-plug coil. Diagnosis and repair are identical to P0351—replace the coil and spark plug on cylinder 2 as a set. Toyota COPs are widely available and inexpensive.
Most commonly affected models