P0348: Camshaft Position Sensor A Circuit High Input (Bank 2)

What does P0348 mean?

The bank 2 camshaft A input is electrically too high. A lost return path or signal short to voltage can make the computer see a constant high level instead of the expected pulses.

Generic OBD-II definition: Camshaft Position Sensor A Circuit High Input (Bank 2). Confirm applicability in your vehicle service information.

Common causes

• Open sensor ground
• Signal shorted to reference or other power
• Failed bank 2 cam sensor

Symptoms

• Bucking or surging
• Intermittent stalling
• Possible no-start after shutdown

Diagnostic focus

Do not confuse the bank 2 A sensor with the B sensor or the VVT actuator. The connector pinout and waveform test must match the sensor named by this code.

Can I keep driving with P0348?

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

• Inspect the bank 2 sensor return wire
• Test for unwanted voltage on the signal circuit
• Verify the sensor waveform after wiring repairs

Sources & review

• OBD-Codes.com: P0348
• TroubleCodes.net: generic code definitions

Definitions and diagnostic background checked 2026-11-06. Generic guidance, not a substitute for the service procedure for your exact year, engine, and transmission.