Vehicle Dynamics Control (Diagnostics): Other Subaru Outback BH

CHECK

Check the following items about the vehicle's state.

Interview Check List - ABS &/Or VDC Warning Light. Scheme 290

Interview Check List - VDC Off Operation Indicator Light. Scheme 291

Interview Check List - VDC Operation Indicator Light. Scheme 292

Interview Check List - Conditions Under Which Trouble Occurs (1 Of 2). Scheme 293

Interview Check List - Conditions Under Which Trouble Occurs (2 Of 2). Scheme 294

SUPPLEMENTAL RESTRAINT SYSTEM "AIRBAG"

Airbag system wiring harness is routed near the ABS sensor, ABS control module and hydraulic control unit.

BATTERY

Measure battery voltage and specific gravity of electrolyte.

Standard voltage: 12 V, or more

Specific gravity: Above 1.260

HYDRAULIC UNIT

Check the hydraulic unit VDC.

1. With brake tester, see «CHECKING THE HYDRAULIC UNIT VDC OPERATION WITH BRAKE TESTER»(ref-177384-S09922796182005070600000) .
2. Without brake tester, see «CHECKING THE HYDRAULIC UNIT VDC OPERATION BY PRESSURE GAUGE»(ref-177384-S24067522412005070600000) .

BRAKE DRAG

Check brake drag.

BRAKE PAD AND ROTOR

Check brake pad and rotor.

1. Front: See «DISC & DRUM»(ref-162794) .
2. Rear: See «DISC & DRUM»(ref-162794) .

TIRE

Check tire specifications, tire wear and air pressure.

Identifying Special Tools. Scheme 295

Identifying General Purpose Tools. Scheme 296

Locating Electrical Components (1 Of 2). Scheme 297

Locating Electrical Components (2 Of 2). Scheme 298

Identifying Control Module Harness Connectors. Scheme 299

Note. The terminal numbers in the VDC control module connector are as shown in the figure. When the connector is removed from the VDCCM, the connector switch closes the circuit between terminal No. 53, No. 54 and No. 55. The ABS and VDC warning light illuminate.

Control Module I/O Signal Chart. Scheme 300

Control Module I/O Signal Schematic. Scheme 301

MEASUREMENT

Measure input/output signal voltage.

Note. Measure with the VDCCM connector cover removed. See VDCCM Connector Cover .

Wave Form Chart (1 Of 2). Scheme 302

Wave Form Chart (2 Of 2). Scheme 303

Scheme 304

Scheme 305

1. Turn ignition switch OFF.
2. Disconnect connector from VDCCM.
3. Remove band.
4. Remove cable clamp cover.
5. Remove screws securing connector cover. CAUTION: Do not allow harness to catch on adjacent parts during installation. (Scheme 304): Removing Connector Cover Screws For VDCCM
6. Remove connector cover. (Scheme 305): Removing Connector Cover For VDCCM

Data Link Connector

Note. For information about the data link connector. See BASIC DIAGNOSTIC PROCEDURE .

Scheme 306

Scheme 307

Scheme 308

Scheme 309

1. Prepare Subaru Select Monitor kit. (Scheme 306): Preparing Subaru Select Monitor Kit
2. Connect diagnosis cable to Subaru Select Monitor.
3. Insert cartridge into Subaru Select Monitor. See «PREPARATION TOOL»(ref-177444-S30268913942005053100000). (Scheme 307): Inserting Cartridge - (Select Monitor)
4. Connect Subaru Select Monitor to data link connector. Data link connector located in the lower portion of the instrument panel (on the driver's side). (Scheme 308): Locating Data Link Connector Connect diagnosis cable to data link connector.
5. Turn ignition switch to ON (engine OFF) and Subaru Select Monitor switch to ON. (Scheme 309): Locating Subaru Select Monitor Switch
6. On the << Main Menu >> display screen, select the {Each System Check} and press the [YES] key.
7. On the << System Selection Menu >> display screen, select the {Brake Control System} and press the [YES] key.
8. Press the [YES] key after displayed the information of engine type.
9. On the << Brake Diagnosis >> display screen, select the {Diagnostic Code(s) Display} and press the [YES] key.
10. On the << Diagnostic Code(s) Displays >> display screen, select the {Current Diagnostic Code(s)} or {History Diagnostic Code(s)} and press the [YES] key.

Note. For detailed operation procedure, see Subaru Select Monitor. For detailed concerning diagnostic trouble codes, see List of Diagnostics Trouble Code. A maximum of 3 trouble codes are displayed in order of occurrence. (Scheme 310): Identifying "a" "a" refers to trouble codes in order of occurrence (Latest, Old, Older). see scheme 26: Order Of Occurrence Chart

READ CURRENT DATA

1. On the << Main Menu >> display screen, select {Each System Check} and press the << YES >> key.
2. On the << System Selection Menu >> display screen, select {Brake Control System} and press << YES >> key.
3. Press the << YES >> key after the VDC type is displayed.
4. On the << Brake Control Diagnosis >> display screen, select {Current Data Display & Save} and press the << YES >> key.
5. On the << Data Display Menu >> display screen, select {Data Display} and press the << YES >> key.
6. Using the scroll key, move the display screen up or down until the desired data is shown.

Scheme 310

1. A list of the support data is shown in the following table. (Scheme 312): Current Data Display Chart

Note. For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL. See Subaru Select Monitor .

CLEAR MEMORY MODE

1. On the << Main Menus >> display screen, select {2. Each System Check} and press the << YES >> key.
2. On the << System Select Menu >> display screen, select {Brake System} and press the << YES >> key.
3. Press the << YES >> key after the engine type is displayed.
4. On the << Brake Control Diagnosis >> display screen, select {Clear Memory} and press the << YES >> key.
5. When 'Done' and 'turn ignition switch OFF are shown on the display screen, turn the Subaru Select Monitor and ignition switch to OFF.

Note. For detailed operation procedure, see Subaru Select Monitor .

Function Check Chart. Scheme 311

Scheme 312

1. Take out diagnosis connector from side of driver's seat heater unit. see scheme 29: Taking Out Diagnosis Connector
2. Turn ignition switch OFF.
3. Connect diagnosis connector terminal 8 to diagnosis terminal.
4. Turn ignition switch ON.
5. ABS warning light is set in the diagnostic mode and blinks to identify trouble code.
6. After the start code (11) is shown, the trouble codes will be shown in order of the last information first. These repeat for a maximum of 5 minutes.

Note. When there are no trouble codes in memory, only the start code (11) is shown. When on-board diagnosis of the VDC control module detects a problem, the information (up to a maximum of three) will be stored in the EEP ROM as a trouble code. When there are more than three, the most recent three will be stored. (Stored codes will stay in memory until they are cleared.)

Identifying Trouble Codes (Without Subaru Select Monitor). Scheme 313

WITH SUBARU SELECT MONITOR

Refer to SUBARU SELECT MONITOR for information about how to obtain and understand trouble codes. See Subaru Select Monitor .

Refer to SUBARU SELECT MONITOR for information about how to clear trouble codes. See Subaru Select Monitor .

Inspecting Warning Light Illumination. Scheme 314

1. When the warning and/or indicator lights do not illuminate in accordance with this illumination pattern, there must be an electrical malfunction.
2. When the warning and/or indicator lights remain constantly OFF, repair the warning and/or indicator lights circuit or diagnosis circuit. See «Diagnostics Chart With Diagnosis Connector»(ref-177444-S37765939532005060300000) .

Note. Even though the ABS warning light does not go out 1.5 seconds after it illuminates, the VDC system operates normally when the warning light goes out while driving at approximately 12 km/h (7 MPH). However, the Anti-lock brakes do not work while the ABS warning light is illuminated. It may take a few minutes for the VDC OFF indicator light to go out when the vehicle is exposed for some time in a low temperature area. This is not a problem because of low engine coolant temperatures. If a vehicle wheel is stuck or free-spinning for approximately 1 minute, power transfer fluctuation to the remaining wheels will occur. Power transfer conditions will differ from those occurring during normal vehicle operation. The ABS sensor will detect this condition. The ABS and VDC warning lights will illuminate. If the vehicle is operated with the four wheels lifted off the ground or with the four wheels placed on rollers, the VDCCM will detect a problem with the speed sensor and the ABS and VDC warning lights may illuminate. In this case, there is no abnormality. Clear the diagnostic code from memory. When the engine is started and vehicle movement begins, the VDCH/U motor pump and solenoid valve will operate for a few seconds. This permits checking of VDC function. Normal motor pump and solenoid valve operational noise will be heard. Normal brake pedal kick back will be felt when the brake pedal is depressed. In this case, there is no abnormality.

Diagnostic Trouble Code Chart - (Without Subaru Select Monitor) - (1 Of 4). Scheme 315

Diagnostic Trouble Code Chart - (Without Subaru Select Monitor) - (2 Of 4). Scheme 316

Diagnostic Trouble Code Chart - (Without Subaru Select Monitor) - (3 Of 4). Scheme 317

If any of the following multiple trouble codes are present in memory, check the area corresponding to the first trouble code. If no problem is detected, check the areas corresponding to the other trouble codes in order of their appearance.

Diagnostic Trouble Code Chart - (Without Subaru Select Monitor) - (4 Of 4). Scheme 318

Diagnostic Trouble Code Chart - (With Subaru Select Monitor) - (1 Of 5). Scheme 319

Diagnostic Trouble Code Chart - (With Subaru Select Monitor) - (2 Of 5). Scheme 320

Diagnostic Trouble Code Chart - (With Subaru Select Monitor) - (3 Of 5). Scheme 321

Diagnostic Trouble Code Chart - (With Subaru Select Monitor) - (4 Of 5). Scheme 322

If any of the following multiple trouble codes are present in memory, check the area corresponding to the first trouble code. If no problem is detected, check the areas corresponding to the other trouble codes in order of their appearance.

Diagnostic Trouble Code Chart - (With Subaru Select Monitor) - (5 Of 5). Scheme 323

CODE 21: (FRONT RH) ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH)

Note. For diagnostic procedure, refer to TROUBLE CODE 27. See TROUBLE CODE 27 (REAR LH) ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH) .

CODE 23: (FRONT LH) ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH)

Note. For diagnostic procedure, refer to TROUBLE CODE 27. See TROUBLE CODE 27 (REAR LH) ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH) .

CODE 25: (REAR RH) ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH)

Note. For diagnostic procedure, refer to TROUBLE CODE 27. See TROUBLE CODE 27 (REAR LH) ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH) .

CODE 22: (FRONT RH) ABNORMAL ABS SENSOR (ABNORMAL ABS SENSOR SIGNAL)

Note. For diagnostic procedure, see TROUBLE CODE 28 (REAR LH) ABNORMAL ABS SENSOR (ABNORMAL ABS SENSOR SIGNAL) .

CODE 24: (FRONT LH) ABNORMAL ABS SENSOR (ABNORMAL ABS SENSOR SIGNAL)

Note. For diagnostic procedure, see TROUBLE CODE 28 (REAR LH) ABNORMAL ABS SENSOR (ABNORMAL ABS SENSOR SIGNAL) .

CODE 26: (REAR RH) ABNORMAL ABS SENSOR (ABNORMAL ABS SENSOR SIGNAL)

Note. For diagnostic procedure, see TROUBLE CODE 28 (REAR LH) ABNORMAL ABS SENSOR (ABNORMAL ABS SENSOR SIGNAL) .

CODE 31: (FRONT RH INLET) ABNORMAL INLET AND CUT SOLENOID VALVE CIRCUIT(S)

Note. For diagnostic procedure, refer to TROUBLE CODE 62. See TROUBLE CODE 62 (SECONDARY CUT) ABNORMAL INLET AND CUT SOLENOID VALVE CIRCUIT(S) .

CODE 33: (FRONT LH INLET) ABNORMAL INLET AND CUT SOLENOID VALVE CIRCUIT(S)

Note. For diagnostic procedure, refer to TROUBLE CODE 62. See TROUBLE CODE 62 (SECONDARY CUT) ABNORMAL INLET AND CUT SOLENOID VALVE CIRCUIT(S) .

CODE 35: (REAR RH INLET) ABNORMAL INLET AND CUT SOLENOID VALVE CIRCUIT(S)

Note. For diagnostic procedure, refer to TROUBLE CODE 62. See TROUBLE CODE 62 (SECONDARY CUT) ABNORMAL INLET AND CUT SOLENOID VALVE CIRCUIT(S) .

CODE 37: (REAR LH INLET) ABNORMAL INLET AND CUT SOLENOID VALVE CIRCUIT(S)

Note. For diagnostic procedure, refer to TROUBLE CODE 62. See TROUBLE CODE 62 (SECONDARY CUT) ABNORMAL INLET AND CUT SOLENOID VALVE CIRCUIT(S) .

CODE 61: (PRIMARY CUT) ABNORMAL INLET AND CUT SOLENOID VALVE CIRCUIT(S)

Note. For diagnostic procedure, refer to TROUBLE CODE 62. See TROUBLE CODE 62 (SECONDARY CUT) ABNORMAL INLET AND CUT SOLENOID VALVE CIRCUIT(S) .

CODE 32: (FRONT RH OUTLET) ABNORMAL OUTLET AND SUCTION SOLENOID VALVE CIRCUIT(S)

Note. For diagnostic procedure, refer to TROUBLE CODE 64. See TROUBLE CODE 64 (SECONDARY SUCTION) ABNORMAL OUTLET AND SUCTION SOLENOID VALVE CIRCUIT(S) .

CODE 34: (FRONT LH OUTLET) ABNORMAL OUTLET AND SUCTION SOLENOID VALVE CIRCUIT(S)

Note. For diagnostic procedure, refer to TROUBLE CODE 64. See TROUBLE CODE 64 (SECONDARY SUCTION) ABNORMAL OUTLET AND SUCTION SOLENOID VALVE CIRCUIT(S) .

CODE 36: (REAR RH OUTLET) ABNORMAL OUTLET AND SUCTION SOLENOID VALVE CIRCUIT(S)

Note. For diagnostic procedure, refer to TROUBLE CODE 64. See TROUBLE CODE 64 (SECONDARY SUCTION) ABNORMAL OUTLET AND SUCTION SOLENOID VALVE CIRCUIT(S) .

CODE 38: (REAR LH OUTLET) ABNORMAL OUTLET AND SUCTION SOLENOID VALVE CIRCUIT(S)

Note. For diagnostic procedure, refer to TROUBLE CODE 64. See TROUBLE CODE 64 (SECONDARY SUCTION) ABNORMAL OUTLET AND SUCTION SOLENOID VALVE CIRCUIT(S) .

CODE 63: (PRIMARY SUCTION) ABNORMAL OUTLET AND SUCTION SOLENOID VALVE CIRCUIT(S)

Note. For diagnostic procedure, refer to TROUBLE CODE 64. See TROUBLE CODE 64 (SECONDARY SUCTION) ABNORMAL OUTLET AND SUCTION SOLENOID VALVE CIRCUIT(S) .