What does code P0201 mean on a Toyota and is it safe to drive?
P0201: Injector Circuit / Open — Cylinder 1. 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 an open circuit or a fault in the fuel injector circuit for cylinder 1. This means the injector may not be firing, causing a misfire and unburned fuel entering the exhaust.
Common causes for your Toyota
- Failed fuel injector on cylinder 1
- Damaged or corroded injector wiring / connector
- Faulty PCM injector driver
- Clogged injector not responding
Symptoms
- Check Engine Light, often with misfire codes
- Rough idle and misfire on cylinder 1
- Loss of power
- Fuel smell from exhaust
Typical fixes
- Test and replace fuel injector on cylinder 1
- Inspect and repair injector wiring harness
- Clean injectors (if partially clogged)
Repair cost range
For a Toyota, repairs for P0201 often fall between $150 and $500, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Toyota
Toyota P0201 is usually a failed fuel injector on cylinder 1 or a wiring harness issue at the injector connector. On higher-mileage 2AZ-FE engines, injector O-rings can fail and cause injector flooding rather than an open circuit—confirm with a noid light before replacing.
Most commonly affected models