P0013 Exhaust Camshaft Position Actuator Circuit/Open Bank 1

P0013 points to an exhaust camshaft position actuator circuit or open-circuit fault on bank 1. The code is centered on the control circuit for the exhaust cam actuator.

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 jump straight to actuator replacement; confirm the circuit is not open, shorted, oil-contaminated, or affected by poor connector tension.

Symptoms of P0013

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 P0013

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

Inspect the exhaust cam actuator solenoid connector, wiring, power feed, and control circuit at bank 1.
Check oil condition and oil level because actuator response can be affected by lubrication faults as well as circuit faults.
Compare commanded exhaust cam movement with actual cam position and review related cam/crank correlation codes.

Related OBD-II codes

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