Vehicle Dynamics Control (Vdc) (Diagnostics): Other Subaru Forester SH рестайлинг

PROCEDURE

Note. To check the harness for open or short circuits, shake problem spot or connector. Refer to "Check List for Interview". < Ref. to CHECK LIST FOR INTERVIEW . >

DIAGNOSTIC PROCEDURE CHART

CHECK

Check the following item about the vehicle's state.

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SUPPLEMENTAL RESTRAINT SYSTEM "AIRBAG"

Airbag system wiring harness is routed near the ABS wheel speed sensor and VDCCM&H/U.

BATTERY

Measure the battery voltage and check electrolyte.

Standard voltage

12 V or more

Specific gravity

1.260 or more

GROUND

Check the tightening torque of ground (GB-6) bolt of VDC.

Tightening torque

13 N.m (1.3 kgf-m, 9.6 ft-lb)

HYDRAULIC UNIT

Check the hydraulic unit.

1. When using the brake tester < Ref. to «CHECKING THE HYDRAULIC UNIT ABS OPERATION BY BRAKE TESTER»(ref-465437-S33442464182012042000000) , INSPECTION, VDC Control Module and Hydraulic Control Unit (VDCCM&H/U). >
2. Without brake tester < Ref. to «CHECKING THE HYDRAULIC UNIT ABS OPERATION BY PRESSURE GAUGE»(ref-465437-S34009623792012042000000) , INSPECTION, VDC Control Module and Hydraulic Control Unit (VDCCM&H/U). >

BRAKE DRAG

Check for brake drag.

BRAKE PAD AND ROTOR

Check the brake pad and rotor.

1. Front < Ref. to «INSPECTION»(ref-465400-S37482469522012042000000) , Front Brake Pad. > < Ref. to «INSPECTION»(ref-465400-S01810811262012042000000) , Front Disc Rotor. >
2. Rear < Ref. to «INSPECTION»(ref-465400-S05333013372012042000000) , Rear Brake Pad. > < Ref. to «INSPECTION»(ref-465400-S41882798252012042000000) , Rear Disc Rotor. >

TIRE

Check the tire specifications, tire wear and air pressure. < Ref. to SPECIFICATION , General Description. >

GENERAL TOOL

GENERAL TOOL DESCRIPTION CHART

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Note. Terminal numbers in VDCCM&H/U connector are shown in the illustration. When the connector is removed from the VDCCM&H/U, the brake warning light (EBD warning light), ABS warning light, VDC warning light & VDC indicator light, VDC OFF indicator light, and the hill start assist warning light illuminate.

CONTROL MODULE I/O SIGNAL REFERENCE CHART

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1. Prepare the Subaru Select Monitor kit. < Ref. to «SPECIAL TOOL»(ref-465420-S02318571452012042000000) , PREPARATION TOOL, General Description. >
2. Prepare PC with Subaru Select Monitor installed.
3. Connect the SDI (Subaru Diagnostic Interface) to the PC USB port (exclusively for Subaru Selector Monitor) using a USB cable. NOTE: Port exclusively for Subaru Select Monitor refers to the USB port used when installing Subaru Select Monitor.
4. Connect the diagnosis cable to the SDI.
5. Connect the SDI to the data link connector located in the lower portion of the instrument panel (on the driver's side). CAUTION: Do not connect scan tools other than the Subaru Select Monitor.
6. Start the PC.
7. Turn the ignition switch to ON (engine OFF) and run the "PC application for Subaru Select Monitor".
8. Record the DTC and data. NOTE: For detailed operation procedure, refer to the appropriate procedure .
9. If VDC and Subaru Select Monitor cannot communicate, check the communication circuit. < Ref. to «COMMUNICATION FOR INITIALIZING IMPOSSIBLE»(ref-465420-S26521543022012042000000) , INSPECTION, Subaru Select Monitor. >

READ CURRENT DATA

1. On << Main Menu >> display, select {Each System Check}.
2. On << System Selection Menu >> display, select {Brake Control System}.
3. Click the [OK] button after the {VDC} is displayed.
4. On << Brake Control Diagnosis >> display, select {Current Data Display & Save}.
5. On << Data Display Menu >> display, select the data display method.
6. Using the scroll key, scroll the display screen up or down until necessary data is shown. A list of the support data is shown in the following table.

SUPPORT DATA CHART

Note. For detailed operation procedures, refer to the appropriate procedure .

FUNCTION CHECK

FUNCTION CHECK CHART

FREEZE FRAME DATA

Note. Data stored at the time of trouble occurrence is shown on display. Each time a trouble occurs, the latest information is stored in the freeze frame data in memory. If a freeze frame data is not properly stored in memory (due to a drop in VDCCM power supply, etc.), a DTC suffixed with a question mark "?" appears on the Subaru Select Monitor display. This shows it may be an unreliable reading.

FREEZE FRAME DATA CHART

PARAMETER SELECTION

Note. When the VDCCM is replaced with a replacement part, be sure to perform the parameter selection/registration to the VDCCM using this function. To confirm the applied model, refer to the "model number plate" attached on the vehicle. < Ref. to IDENTIFICATION , Identification. > When the applied model is entered wrong, re-entry is possible. When the registration has not been performed, the DTC code "Parameter selection error" is detected together with the ABS/EBD/VDC warning light illumination. Connect the Subaru Select Monitor. On << Main Menu >> display, select {Each System Check}. On << System Selection Menu >> display, select {Brake Control System}. When {VDC} is displayed, select the [OK] button. On << Brake Control Diagnosis >> display, select {Select Parameter}. Check the applied model and option code indicated in the "Model number plate". < Ref. to IDENTIFICATION , Identification. > Enter the applied model of 7-digit alphanumeric characters and press the [Enter] key. When the option code input screen appears after entering the applied model, enter the option code consisting of 4-digit alphanumeric characters, and press the [Enter] key When the option code is 3 digits, add "0" in front and enter the code as 4 digits. When the confirmation screen indicating the vehicle information appears, check that the correct applied model and grade are displayed and click the [OK] button. NOTE: When the displayed applied model and grade are different from those of the vehicle, perform registration operations again after clicking the [OK] button. Execute Clear Memory after parameter selection and registration operations because the DTC for "Parameter selection error" is memorized.

PARAMETER CHECK

Note. The parameter data registered in the VDCCM is shown on the display.

1. Connect the Subaru Select Monitor.
2. On the << Main Menu >> display, select {Each System Check}.
3. On the << System Selection Menu >>, select {Brake Control System}.
4. Click the [OK] button after the {VDC} is displayed.
5. On the << Brake Control Diagnosis >>, select {Confirm on parameter}.
6. On the {Confirm on parameter} display screen, check that the applied model and grade of the target vehicle are included, and click the [OK] button.
7. If the applied model and grade of the target vehicle are not included on the {Confirm on parameter} display screen, perform parameter selection and registration. < Ref. to «PARAMETER SELECTION»(ref-465420-S32718710582012042000000) , OPERATION, Subaru Select Monitor. >

DETECTING CONDITION

Defective harness connector

Reproduce the malfunction occurrence condition as much as possible.

Drive the vehicle at least ten minutes.

Note. Make sure the vehicle is not dragged to one side under usual driving condition.

1. Defective combination meter
2. Defective CAN communication

HILL START ASSIST WARNING LIGHT DOES NOT COME ON

For the diagnostic procedure, refer to "ABS WARNING LIGHT, VDC OFF INDICATOR LIGHT, VDC WARNING LIGHT AND VDC INDICATOR LIGHT DO NOT COME ON". < Ref. to ABS WARNING LIGHT, VDC OFF INDICATOR LIGHT, VDC WARNING LIGHT AND VDC INDICATOR LIGHT DO NOT COME ON , Warning Light Illumination Pattern. >

1. Defective combination meter
2. Defective CAN communication

HILL START ASSIST WARNING LIGHT DOES NOT GO OFF

Refer to "ABS warning light does not go off" for diagnostic procedure. < Ref. to ABS WARNING LIGHT DOES NOT GO OFF , Warning Light Illumination Pattern. >

1. Defective combination meter
2. Defective engine
3. Defective CAN communication

1. Defective combination meter
2. Defective CAN communication
3. VDC OFF switch is shorted.

1. Brake warning light circuit is shorted.
2. Defective sensor/connector
3. Defective CAN communication

LIST

DIAGNOSTIC PROCEDURE CHART