2023 Nissan P0340: What It Means & Is It Safe to Drive?
P0340 on the 2023 Nissan: Camshaft Position Sensor Circuit Malfunction. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
PowertrainHigh urgency
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 on the 2023 Nissan
- 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 2023 Nissan, repairs for P0340 typically fall between $100 and $500, depending on the root cause and labor rates in your area.
Known issues on Nissan
Nissan VQ35DE has two cam sensors; P0340 (bank 1) is often the CMP sensor on the timing cover side. The wiring harness can chafe and short on the VQ—inspect the harness routing carefully before replacing the sensor.
Most commonly affected models
Altima 2002–2008Maxima 2004–2008Pathfinder 2005–2010