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Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO): Overview Subaru Outback BR

Testing & Diagnostics 2 illustrations ~179 words

COMPONENT DESCRIPTION

The variable valve lift system optimizes the intake valve lift by switching between the low lift cam and the high lift cam according to the engine speed. The amount of intake valve lift is varied by controlling the oil switching solenoid valve duty according to signals from the ECM.

Scheme 72

Scheme 72: COMPONENT DESCRIPTION

Drain valve controls the ambient air to be introduced to the canister.

Scheme 73

Scheme 73: COMPONENT DESCRIPTION

Vehicle speed signals are taken in to the VDC control module and hydraulic control unit, and normal/erroneous data of the ABS wheel speed sensor is received by CAN communication from the VDC control module and hydraulic control unit.

The barometric pressure sensor is built into the ECM.

The barometric pressure sensor is built into the ECM.

The barometric pressure sensor is built into the ECM.

ECM, TCM, VDC CM and body integrated unit are connected by high speed CAN.

(Common Specifications)

CAN Protocol 2.0 B (Active)

Frame Format: 11 Bit ID Frame (Standard Frame)

(High speed CAN)

Conforms to ISO11898

Communication Speed: 500 kbps