ABS (Diagnostics): Other Subaru Outback BP

WITHOUT SUBARU SELECT MONITOR

Note. To check harness for broken wires or short circuits, shake it while holding it or the connector. When ABS warning light illuminates, read and record diagnostic trouble code (DTC) indicated by ABS warning light.

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WITH SUBARU SELECT MONITOR

Note. To check harness for broken wires or short circuits, shake it while holding it or the connector.

Check list for interview. Refer to WITH SUBARU SELECT MONITOR , List of Diagnostics trouble Code (DTC).

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CHECK

Check the following items about the vehicle's state.

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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.

1. With brake tester < Refer to «CHECKING THE HYDRAULIC UNIT ABS OPERATION WITH BRAKE TESTER»(ref-208407-S29545243982005120700000) .

1. Without brake tester < Refer to «CHECKING THE HYDRAULIC UNIT ABS OPERATION BY PRESSURE GAUGE»(ref-208407-S31266010342005120700000) .

BRAKE DRAG

Check brake drag.

BRAKE PAD AND ROTOR

Check brake pad and rotor.

1. Front: «INSPECTION»(ref-163893-S24139372642004071500000) , Front Disc Rotor.

1. Rear: «INSPECTION»(ref-163893-S21381460372004071500000) , Rear Disc Rotor.

TIRE

Check tire specifications, tire wear and air pressure. Refer to SPECIFICATIONS , General Description.

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Note. The terminal numbers in the ABS control module and hydraulic control unit connector are as shown in the figure. When the connector is removed from the ABSCM & H/U, the connector switch closes the circuit between terminal No. 22 and No. 23. The ABS warning light illuminates.

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1. Prepare Subaru Select Monitor kit.
2. Connect diagnosis cable to Subaru Select Monitor.
3. Insert cartridge into Subaru Select Monitor. Refer to «SPECIAL TOOLS»(ref-208409-S42408223332005120700000) .
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). Connect diagnosis cable to data link connector.
5. Turn ignition switch to ON (engine OFF) and Subaru Select Monitor switch to ON.
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 ABS type.
9. On the << ABS Diagnosis >> display screen, select the {Diagnostic Code(s) Display} and press the [YES] key.
10. On the << Diagnostic Code(s) Display >> display screen, select the {Current Diagnostic Code(s)} or {History Diagnostic Code(s)} and press the [YES] key.

Note. For detailed operation procedure, refer to the Subaru Select Monitor Operation Manual. For detailed concerning diagnostic trouble codes, refer to the LIST OF DIAGNOSTICS TROUBLE CODE . Refer to LIST . A maximum of 3 DTC are displayed in order of occurrence. If a particular DTC is not properly stored in memory (due to a drop in ABSCM & H/U power supply, etc.) when a problem occurs, the DTC, followed by a question mark"?", appears on the select monitor display. This shows it may be an unreliable reading.

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READ CURRENT DATA

1. On the << Main Menu >> display screen, select the {Each System Check} and press the << YES >> key.
2. On the << System Selection Menu >> display screen, select the {Brake Control System} and press the << YES >> key.
3. Press the << YES >> key after displayed the information of ABS type.
4. On the << Brake Control Diagnosis >> display screen, select the {Current Data Display & Save} and press the << YES >> key.
5. On the << Data Display Menu >> display screen, select the {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.

1. A list of the support data is shown in the following table.

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Note. For detailed operation procedure, refer to the Subaru Select Monitor Operation Manual.

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1. On the << Main Menu >> display screen, select the {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 displayed the information of ABS type.
4. On the << Brake Control Diagnosis >> display screen, select the {Clear Memory} and press the << YES >> key.
5. When the "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, refer to the Subaru Select Monitor Operation Manual.

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FREEZE FRAME DATA

Note. Data stored at the time of trouble occurrence is shown on display. Each time trouble occurs, the latest information is stored in the freeze frame data in memory. If freeze frame data is not properly stored in memory (due to a drop in ABSCM power supply, etc.), a DTC, preceded by a question mark "?", appears on the select monitor display. This shows it may be an unreliable reading. In case of no trouble code, the initial value of freeze frame data will be displayed.

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1. Take out diagnosis connector from side of driver's seat heater unit.
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 diagnostic trouble code (DTC).
6. After the start code (11) is shown, the diagnostic trouble codes (DTC) will be shown in order of the last information first.

These repeat for a maximum of 3 minutes.

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

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Refer to Subaru Select Monitor for information about how to obtain and understand diagnostic trouble codes (DTC). Refer to SUBARU SELECT MONITOR .

Refer to SUBARU SELECT MONITOR for information about how to clear diagnostic trouble codes (DTC) Refer to SUBARU SELECT MONITOR .

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1. When the ABS warning light does not illuminate in accordance with this illumination pattern, there must be an electrical malfunction.
2. When the ABS warning light remains constantly OFF, repair the ABS warning light circuit or diagnosis circuit. Refer to «DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR»(ref-208409-S29971426352005120700000) .

Note. Even though the ABS warning light does not go out 1.5 seconds after it illuminates, the ABS system operates normally when the warning light goes out while driving at approximately 12 km/h (7 MPH). However, the Antilock brakes do not work while the ABS warning light is illuminated.

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ABS WARNING LIGHT DOES NOT COME ON.

DIAGNOSIS

1. ABS warning light circuit is open or shorted.

TROUBLE SYMPTOM

1. When ignition switch is turned ON (engine OFF), ABS warning light does not come on

WIRING DIAGRAM

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ABS WARNING LIGHT DOES NOT GO OFF

DIAGNOSIS

1. ABS warning light circuit is open or shorted.

TROUBLE SYMPTOM

1. When starting the engine and while ABS warning light is kept ON.

WIRING DIAGRAM

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COMMUNICATION FOR INITIALIZING IMPOSSIBLE

DIAGNOSIS

1. Faulty harness connector

TROUBLE SYMPTOM

1. ABS warning light remains on.

WIRING DIAGRAM

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