Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC): Overview Subaru Forester SG рестайлинг

ECM OPERATION AT DTC SETTING

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

1. Memorize the freeze frame data. (For test mode $02)
2. Memorize the diagnostic value and trouble standard value. (For test mode $06)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

1. Memorize the freeze frame data. (For test mode $02)
2. Memorize the diagnostic value and trouble standard value. (For test mode $06)

1. Memorize the freeze frame data. (For test mode $02)
2. Memorize the diagnostic value and trouble standard value. (For test mode $06)

1. Memorize the freeze frame data. (For test mode $02)
2. Memorize the diagnostic value and trouble standard value. (For test mode $06)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

1. Memorize the freeze frame data. (For test mode $02)
2. Memorize the diagnostic value and trouble standard value. (For test mode $06)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

1. Memorize the freeze frame data. (For test mode $02)
2. Memorize the diagnostic value and trouble standard value. (For test mode $06)

COMPONENT DESCRIPTION

Pressure Control Solenoid Valve

PCV controls the fuel tank pressure to be equal to the atmospheric air pressure. Normally, the solenoid is set to OFF. And the valve opens and closes mechanically in accordance with the pressure difference between tank and atmospheric air, or tank and canister.

The valve is forcibly opened by setting the solenoid to ON at the time of diagnosis.

Pressure Control Solenoid Valve Operation Diagram. Scheme 102

Valve Operation and Air Flow

In the figure below, divided by the diaphragm, the part above X is charged with atmospheric air pressure, and the part below X is charged with tank pressure. Also, the part above Y is charged with tank pressure, and the part below Y is charged with canister pressure.

If the atmospheric air pressure port is A, tank pressure port is B, and canister pressure port is C, the airflows according to pressure difference from each port as shown in the table below.

Pressure Control Solenoid Valve Operation Diagram. Scheme 103

PRESSURE CONTROL SOLENOID VALVE CHART

When A < B (Solenoid OFF)

Pressure Control Solenoid Valve Operation Diagram. Scheme 104

When B < C (Solenoid OFF)

Pressure Control Solenoid Valve Operation Diagram. Scheme 105

When Solenoid is ON

Pressure Control Solenoid Valve Operation Diagram. Scheme 106

Drain valve

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

Drain Valve Controls Air Flow Diagram. Scheme 107

1. Memorize the freeze frame data. (For test mode $02)
2. Memorize the diagnostic value and trouble standard value. (For test mode $06)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

ECM and TCM 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 IS011898

Communication speed: 500 kbps

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

1. Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the diagnostic value and trouble standard value. (For test mode $06)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Atmospheric pressure sensor is built in ECM.

Memorize the freeze frame data. (For test mode $02)

Atmospheric pressure sensor is built in ECM.

Memorize the freeze frame data. (For test mode $02)

Atmospheric pressure sensor is built in ECM.

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)

Memorize the freeze frame data. (For test mode $02)