P0017 Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B

P0017 points to a crankshaft-to-camshaft position correlation problem for bank 1 sensor B. It is a timing-agreement fault rather than a direct sensor diagnosis.

Code details

Generic OBD-II · P0

System: Fuel / Air
Code type: Generic (SAE / ISO controlled)
Standard: SAE J2012 / ISO 15031-6

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not assume the sensor named in the description is the failed part; the code can be caused by mechanical timing or actuator-control errors.

Symptoms of P0017

Check-engine light on, sometimes with rough or uneven running.
Hesitation, surging, or a noticeable change in fuel economy.
Occasionally hard starting or a smell of unburnt fuel.

Common causes of P0017

A failing or contaminated sensor (MAF, MAP, oxygen or air-fuel sensor).
Intake or vacuum leaks, or an exhaust leak near an upstream sensor.
Wiring, connector, or fuel-delivery problems that skew the reading.

Useful checks before replacing parts

Review cam/crank correlation data for the affected bank and compare it with bank 1 sensor A if available.
Inspect timing components, phaser control, oil-control solenoids, sensor mounting, and reluctor integrity.
Check whether the code appeared after timing-chain, belt, head, or camshaft service.

Related OBD-II codes

These nearby fuel / air entries can help compare wording and pin down the fault area.