Home › Codes › Sensor & timing codes
P0345: Camshaft Position Sensor A Circuit (Bank 2)
Severity: High A position-signal fault can cause stalling or failure to restart. Avoid normal use until diagnosed; arrange towing if the engine stalls, runs severely rough, or will not start reliably.
What does P0345 mean?
The computer detects a general circuit malfunction for camshaft sensor A on bank 2. Bank 2 does not contain cylinder 1; A usually corresponds to the intake cam, subject to the engine layout.
Generic OBD-II definition: Camshaft Position Sensor A Circuit (Bank 2). Confirm applicability in your vehicle service information.
Common causes
- Open or shorted bank 2 sensor wiring
- Failed camshaft sensor
- Poor supply or return connection
Symptoms
- Hard starting
- Rough running or misfire
- Loss of power
Diagnostic focus
Use the service diagram to identify the bank before changing a sensor. Replacing bank 1 sensor A for a bank 2 fault is an easy mistake on transverse engines.
Can I keep driving with P0345?
Severity: High A position-signal fault can cause stalling or failure to restart. Avoid normal use until diagnosed; arrange towing if the engine stalls, runs severely rough, or will not start reliably.
If the check engine light is flashing or the car runs badly, stop driving and have it checked.
Typical fixes
- Confirm the bank 2 A sensor location
- Inspect its connector and wiring
- Test supply and signal and check relevant crank/cam codes
Related codes
Camshaft Position Sensor A Circuit (Bank 1 or Single Sensor)P0346
Camshaft Position Sensor A Circuit Range/Performance (Bank 2)P0347
Camshaft Position Sensor A Circuit Low Input (Bank 2)P0348
Camshaft Position Sensor A Circuit High Input (Bank 2)P0349
Camshaft Position Sensor A Circuit Intermittent (Bank 2)
Sources & review
Definitions and diagnostic background checked 2026-11-06. Generic guidance, not a substitute for the service procedure for your exact year, engine, and transmission.