2018 Volvo P0340: What It Means & Is It Safe to Drive?
P0340 on the 2018 Volvo: 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 2018 Volvo
- 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 2018 Volvo, repairs for P0340 typically fall between $100 and $500, depending on the root cause and labor rates in your area.
Known issues on Volvo
Volvo P0340 cam position sensor fault on B5254T and B6294T is typically a failed sensor. On B5254T engines, also inspect the timing belt and cam trigger ring—a damaged timing belt or slipped cam sprocket can produce a P0340 that looks like sensor failure.
Most commonly affected models
S60 B5254T 2001–2009XC90 B6294T 2003–2014