What does code P0340 mean on a Toyota and is it safe to drive?
P0340: Camshaft Position Sensor 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 is not receiving a valid signal from the camshaft position sensor. Affects ignition timing and fuel injection.
Common causes for your Toyota
- Failed camshaft position sensor
- Wiring or connector issue
- Timing chain/belt misalignment (less common)
Symptoms
- Check Engine Light
- No start or hard start
- Rough run, stalling
- Reduced power
Typical fixes
- Replace camshaft position sensor
- Repair wiring/connector
- Verify timing if sensor replacement doesn't fix
Repair cost range
For a Toyota, repairs for P0340 often fall between $100 and $500, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Toyota
Toyota P0340 on 1MZ-FE and 2GR-FE V6 engines is usually a failed camshaft position sensor or its wiring harness. The 1MZ-FE sensor sits at the rear of the engine—factor in labor access time, and verify the wiring connector is clean and seated before replacing the sensor.
Most commonly affected models