Description

DATA TROUBLE CODE: 34

SYSTEM: Turbo Pressure Malfunction

CIRCUIT WIRING DIAGRAM





CIRCUIT DESCRIPTION



To control maximum turbocharging pressure the turbocharger system includes a waste gate valve controlled by an actuator. The actuator is controlled by the manifold pressure which is duty controlled by the vacuum switching valve (VSV) based on signals from the ECM.

NOTE: If the ECM detects the below diagnosis conditions, it operates the fail safe function in which the ECM stops fuel injection.


DIAGNOSTIC TROUBLE CODE DETECTING CONDITION
All conditions below are detected continuously for 2 seconds or more:
- Manifold absolute pressure: 200 kPa (2.0 kgf/cm2; 29 psi) or more.
- Throttle valve opening angle: 20° or more
- Engine speed: 2,400 rpm or more


TROUBLE AREA
- Actuator (for waste gate valve).
- Short in VSV for waste gate valve circuit.
- ECM