2004 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX

Transcription

1 2004 LGACY SRVIC MANUAL QUICK RFRNC INDX CHASSIS SCTION FRONT SUSPNSION FS RAR SUSPNSION RS WHL AND TIR SYSTM WT This service manual has been prepared to provide SUBARU service personnel with the necessary information and data for the correct maintenance and repair of SUBARU vehicles. This manual includes the procedures for maintenance, disassembling, reassembling, inspection and adjustment of components and diagnostics for guidance of experienced mechanics. Please peruse and utilize this manual fully to ensure complete repair work for satisfying our customers by keeping their vehicle in optimum condition. When replacement of parts during repair work is needed, be sure to use SUBARU genuine parts. DIFFRNTIALS TRANSFR CAS DRIV SHAFT SYSTM ABS VHICL DYNAMICS CONTROL (VDC) VHICL DYNAMICS CONTROL (VDC) (DIAGNOSTICS) BRAK DI TC DS ABS ABS(diag) VDC VDC(diag) BR PARKING BRAK PB POWR ASSISTD SYSTM (POWR STRING) PS All information, illustration and specifications contained in this manual are based on the latest product information available at the time of publication approval. FUJI HAVY INDUSTRIS LTD. G2320G6

2 ABS(diag) Page 1. Basic Diagnostic Procedure Check List for Interview General Description lectrical Component Location Control Module I/O Signal Subaru Select Monitor Read Diagnostic Trouble Code (DTC) Inspection Mode Clear Memory Mode ABS Warning Light / Brake Warning Light Illumination Pattern List of Diagnostic Trouble Code (DTC) Diagnostic Procedure with Diagnostic Trouble Code (DTC) General Diagnostic Table...82

3 Basic Diagnostic Procedure 1. Basic Diagnostic Procedure A: PROCDUR CAUTION: Remove foreign matters (dust, water, oil, etc.) from the ABSCM&H/U connector during removal and installation. NOT: To check harness for broken wires or short circuits, shake trouble spot or connector. Refer to Check List for Interview. <Ref. to ABS(diag)-4, Check List for Interview.> Step Check Yes No Is the component that might Go to step 2. influence the ABS problem normal? 1 CHCK PR-INSPCTION. 1) Ask the customer when and how the trouble occurred using interview checklist. <Ref. to ABS(diag)-4, Check List for Interview.> 2) Before performing diagnostics, check the component which might affect ABS problems. <Ref. to ABS(diag)-8, INSPCTION, General Description.> Repair or replace each unit. 2 CHCK INDICATION OF DTC ON SCRN. 1) Turn the ignition switch to OFF. 2) Connect the Subaru Select Monitor to data link connector. 3) Turn the ignition switch to ON and Subaru Select Monitor to ON. NOT: If the communication function of the Subaru Select Monitor cannot be executed normally, check the communication circuit. <Ref. to ABS(diag)-18, COMMUNICATION FOR INI- TIALIZING IMPOSSIBL, INSPCTION, Subaru Select Monitor.> 4) Read the DTC. <Ref. to ABS(diag)-25, OPRATION, Read Diagnostic Trouble Code (DTC).> 5) Record all DTCs and Freeze Frame Data. Is DTC displayed? Go to step 4. Go to step 3. 3 PRFORM TH GNRAL DIAGNOSTICS. 1) Inspect using General Diagnostic Table. <Ref. to ABS(diag)-82, General Diagnostic Table.> 2) Perform clear memory mode. <Ref. to ABS(diag)-17, CLAR MMORY MOD, OPRATION, Subaru Select Monitor.> 3) Perform the inspection mode. <Ref. to ABS(diag)-26, Inspection Mode.> 4) Read the DTC. <Ref. to ABS(diag)-15, RAD DIAGNOSTIC TROUBL COD (DTC), OPRATION, Subaru Select Monitor.> Check the DTC does not displayed. Does the ABS warning light go off after turning the ignition switch to ON? Finish the diagnosis. Check in accordance with Diagnostic Procedure for ABS. <Ref. to ABS(diag)-21, WITHOUT DTC, INSPCTION, Subaru Select Monitor.> ABS(diag)-2

4 Basic Diagnostic Procedure Step Check Yes No 4 PRFORM TH DIAGNOSIS. 1) Refer to the List of Diagnostic Trouble Code (DTC). <Ref. to ABS(diag)-39, LIST, List of Diagnostic Trouble Code (DTC).> 2) Fix the wrong part. 3) Perform clear memory mode. <Ref. to ABS(diag)-17, CLAR MMORY MOD, OPRATION, Subaru Select Monitor.> 4) Perform the inspection mode. <Ref. to ABS(diag)-26, Inspection Mode.> 5) Read the DTC. <Ref. to ABS(diag)-15, RAD DIAGNOSTIC TROUBL COD (DTC), OPRATION, Subaru Select Monitor.> Is DTC displayed? Repeat step 1 to 4 until DTC is not shown. Finish the diagnosis. ABS(diag)-3

5 Check List for Interview 2. Check List for Interview A: CHCK Check the following items about the vehicle s state. 1. STAT OF ABS WARNING LIGHT ABS warning light comes on. Ignition key position Timing Always Sometimes Only once Not come on When / how long does it come on? LOCK ACC ON (before starting engine) START ON (after ngine starting, engine is running) ON (after ngine starting, engine is at a standstill) Immediately after turning the ignition to ON Immediately after turning the ignition to START When accelerating km/h MPH When driving at a constant speed km/h MPH When decelerating km/h MPH When turning to the right Steering angle: deg Steering time: Sec. When turning to the left Steering angle: deg Steering time: Sec. When operating other electrical parts Parts name: Operating condition: 2. STAT OF BRAK WARNING LIGHT Brake warning light comes on. Ignition key position Always Sometimes Only once Not come on When pulling the parking brake lever up. When releasing the parking brake lever down. When / how long does it come on? LOCK ACC ON (before starting engine) START ON (after ngine starting, engine is running) ON (after ngine starting, engine is at a standstill) ABS(diag)-4

6 Check List for Interview Timing 3. SYMPTOMS ABS operating condition Immediately after turning the ignition to ON Immediately after turning the ignition to START When accelerating km/h MPH When driving at a constant speed km/h MPH When decelerating km/h MPH When turning to the right Steering angle: deg Steering time: Sec. When turning to the left Steering angle: deg Steering time: Sec. When operating other electrical parts Parts name: Operating condition: Does not move. Operates only when applying an abrupt brake. Vehicle speed: km/h MPH How to step on brake pedal: a) Operating time: Sec. b) Operating noise: Occurs. / Does not occur. What kind of noise? c) Reaction force of brake pedal Knocking Gong gong Bong Buzz Gong gong buzz Others: Stick Weak pedal resistance Strong pedal resistance Others: ABS(diag)-5

7 Check List for Interview Behavior of vehicle a) Directional stability cannot be obtained or the steering refuses to work when applying brakes: Yes / No When: When turning to the right When turning to the left When spinning Others: a) Directional stability cannot be obtained or the steering refuses to work when accelerating: Yes / No When: c) Poor brake performance: Yes / No What kind: d) Poor acceleration: Yes / No What kind: e) Occurrence of vibration: Yes / No Where What kind: f) Occurrence of noise: Yes / No Where What kind: g) Other troubles occurred: Yes / No What kind: 4. CONDITIONS UNDR WHICH TROUBL OCCURS When turning to the right When turning to the left When spinning Others: Long braking/stopping distance Brakes lock or drag Long pedal stroke Pedal sticks. Others: Not accelerate ngine stalls. Others: nvironment a) Weather Fine Cloudy Rainy Snowy Others: b) Ambient temperature C ( F) c) Road Inner city Suburbs Highway Local street Uphill Downhill Paved road Gravel road Muddy road Sandy place Others: d) Road surface Dried Wet Covered with fresh snow Covered with hardened snow Frozen slope Others: ABS(diag)-6

8 Check List for Interview Condition a) Brakes Deceleration: G Intermittent / Temporary b) Accelerator Acceleration: G Intermittent / Temporary c) Vehicle speed km/h MPH Advancing When accelerating When decelerating At low speed When turning Others: d) Tire inflation pressure Front RH tire: kpa Front LH tire: kpa Rear RH tire: kpa Rear LH tire: kpa e) Degree of wear Front RH tire: Front LH tire: Rear RH tire: Rear LH tire: f) Genuine parts are used.: Yes / No g) Tire chain is attached.: Yes / No h) T-type tire is used.: Yes / No i) Condition of suspension alignment: j) Loading state: k) Repair parts are used.: Yes / No Contents: l) Others: ABS(diag)-7

9 3. General Description A: CAUTION 1. SUPPLMNTAL RSTRAINT SYSTM AIRBAG Airbag system wiring harness is routed near the ABS wheel speed sensor and ABSCM&H/U. CAUTION: All airbag system wiring harness and connectors are colored yellow. Do not use the electrical test equipment on these circuits. Be careful not to damage the airbag system wiring harness when servicing the ABS wheel speed sensor and ABSCM&H/U. B: INSPCTION Before performing diagnosis, check the following items which might affect ABS problems. 1. BATTRY Measure battery voltage and check electrolyte. Standard voltage: 12 V or more Specific gravity: More than BRAK FLUID 1) Check the brake fluid level. 2) Check the brake fluid for leaks. 3. HYDRAULIC UNIT Check the hydraulic unit. With brake tester <Ref. to ABS-8, CHCKING TH HYDRAULIC UNIT ABS OPRATION WITH BRAK TSTR, INSPCTION, ABS Control Module and Hydraulic Control Unit (ABSCM&H/ U).> Without brake tester <Ref. to ABS-7, CHCK- ING TH HYDRAULIC UNIT ABS OPRATION BY PRSSUR GAUG, INSPCTION, ABS Control Module and Hydraulic Control Unit (AB- SCM&H/U).> 4. BRAK DRAG Check for brake drag. 5. BRAK PAD AND ROTOR Check the brake pad and rotor. FRONT <Ref. to BR-18, INSPCTION, Front Brake Pad.> <Ref. to BR-19, INSPCTION, Front Disc Rotor.> RAR <Ref. to BR-25, INSPCTION, Rear Brake Pad.> <Ref. to BR-26, INSPCTION, Rear Disc Rotor.> General Description 6. TIR Check the tire specifications, tire wear and air pressure. <Ref. to WT-2, SPCIFICATION, General Description.> ABS(diag)-8

10 General Description C: PRPARATION TOOL 1. SPCIAL TOOL ILLUSTRATION TOOL NUMBR DSCRIPTION RMARKS 24082AA230 CARTRIDG Troubleshooting for electrical system. ST24082AA AA030 SUBARU SLCT MONITOR KIT Troubleshooting for electrical system. nglish: 22771AA030 (Without printer) German: 22771AA070 (Without printer) French: 22771AA080 (Without printer) Spanish: 22771AA090 (Without printer) ST22771AA GNRAL TOOL Circuit tester Oscilloscope TOOL NAM RMARKS Used for measuring resistance, voltage and ampere. Used for measuring sensor. ABS(diag)-9

11 4. lectrical Component Location A: LOCATION lectrical Component Location (4) (13) (3) (5) (2) (1) (10) (8) (7) (9) (6) (12) (11) (8) (7) (9) (1) ABS control module and hydraulic control unit (ABSCM&H/U) (5) Data link connector (For Subaru Select Monitor) (2) Two-way connector (6) Transmission control module (3) Diagnosis connector (Used for (TCM) (AT model) ABS sequence control.) (4) ABS warning light (8) ABS wheel speed sensor (9) Caliper body (10) G sensor (11) Stop light switch (12) Master cylinder (7) Magnetic encoder seal (13) Brake and BD warning light ABS00458 ABS(diag)-10

12 lectrical Component Location (1) (3) ABS00405 ABS00106 (13) (5) (4) ABS00438 ABS00464 FRONT (8) (7) RAR (8) (7) (7) ABS00408 (7) ABS00407 (10) ABS00406 ABS(diag)-11

13 Control Module I/O Signal 5. Control Module I/O Signal A: LCTRICAL SPCIFICATION (1) ABS00409 (1) ABS control module and hydraulic control unit (ABSCM&H/U) connector NOT: Terminal numbers in ABSCM&H/U connector are as shown in the figure. ABS warning light is illuminates when the connector is removed from ABSCM&H/U. ABS(diag)-12

14 Control Module I/O Signal ABS wheel speed sensor (Wheel speed sensor) Description Front LH wheel Front RH wheel Rear LH wheel Terminal No. (+) ( ) Input/Output signal Measured value and measuring conditions Power supply V Signal ma: Rectangle waveform Power supply V Signal ma: Rectangle waveform Power supply V Signal ma: Rectangle waveform Power supply V Rear RH wheel Signal ma: Rectangle waveform CAN communication line (+) V pulse signal CAN communication line ( ) V pulse signal Valve relay power supply * V Motor relay power supply * V Power supply V G sensor Ground 10 Output V when the vehicle is on a level surface Stop light switch * Less than 1.5 V when the stop light is OFF; otherwise, V when the stop light is ON. ABS warning light After turning the ignition switch to ON, V during 1.5 seconds and less than 1.5 V after 1.5 seconds passed. Brake warning light (BD warning light) 8 15 After turning the ignition switch to ON, V during 1.5 seconds and less than 1.5 V after 1.5 seconds passed. Subaru Select Monitor 7 15 Less than 1.5 V when no data is received V pulse (in communication) ABS diagnosis connector When the ignition switch is ON, V. Power supply * When the ignition switch is ON, V. Grounding line 15 Vehicle speed output signal V pulse *1: Measure the I/O signal voltage after removing the connector from the ABSCM&H/U terminal. ABS(diag)-13

15 B: WIRING DIAGRAM Control Module I/O Signal (3) (1) (16) (30) (31) (17) (18) (5) (2) (19) (20) (6) (28) (29) (4) (21) (22) M (7) (8) (23) (24) (25) (26) (27) (9) (10) (11) (12) (13) (14) (15) ABS00470 (1) Battery (12) Rear inlet solenoid valve LH (24) Front ABS wheel speed sensor LH (2) Ignition switch (13) Rear outlet solenoid valve LH (25) Front ABS wheel speed sensor (3) ABS control module and hydraulic (14) Rear inlet solenoid valve RH RH control unit (ABSCM&H/U) (15) Rear outlet solenoid valve RH (26) Rear ABS wheel speed sensor LH (4) ABS control module (16) Body integrated unit (27) Rear ABS wheel speed sensor (5) Valve relay (17) Diagnosis connector RH (6) Motor relay (18) Data link connector (28) Parking brake switch (7) Motor (19) ABS warning light (29) Brake fluid level switch (8) Front inlet solenoid valve LH (20) Brake warning light (30) ngine control module (CM) (9) Front outlet solenoid valve LH (21) Stop light switch (31) Transmission control module (10) Front inlet solenoid valve RH (22) Stop light (TCM) (11) Front outlet solenoid valve RH (23) G sensor ABS(diag)-14

16 6. Subaru Select Monitor A: OPRATION 1. RAD DIAGNOSTIC TROUBL COD (DTC) 1) Prepare the Subaru Select Monitor kit. <Ref. to ABS(diag)-9, SPCIAL TOOL, PRPARATION TOOL, General Description.> Subaru Select Monitor CAUTION: Do not connect the scan tools except for Subaru Select Monitor. 5) Turn the ignition switch to ON (engine OFF) and turn the Subaru Select Monitor switch to ON. (1) (1) Power switch ABS ) Connect the diagnosis cable to Subaru Select Monitor. 3) Insert the cartridge to Subaru Select Monitor. <Ref. to ABS(diag)-9, SPCIAL TOOL, PRPA- RATION TOOL, General Description.> 4) Connect the Subaru Select Monitor to data link connector. (1) Data link connector is located in the lower portion of the instrument panel (on the driver s side). (1) ABS00111 ABS ) On the «Main Menu» display screen, select the {ach System Check} and press the [YS] key. 7) On the «System Selection Menu» display screen, select the {Brake Control} and press the [YS] key. 8) Press the [YS] key after the {ABS} is displayed. 9) On the «ABS Diagnosis» display screen, select the {DTC Display} and press the [YS] key. NOT: For details concerning operation procedure, refer to the SUBARU SLCT MONITOR OPRA- TION MANUAL. For details concerning DTCs, refer to the List of Diagnostic Trouble Code (DTC). <Ref. to ABS(diag)-39, List of Diagnostic Trouble Code (DTC).> DTCs are displayed up to three in detected order. If a particular DTC is not properly stored in memory (due to a drop in ABSCM&H/U power supply, etc.) on the occurrence of a problem, the DTC which is suffixed with a question mark? appears on the Subaru Select Monitor display. This shows it may be an unreliable reading. 10) If ABS and Subaru Select Monitor cannot communicate, check the communication circuit. <Ref. to ABS(diag)-18, COMMUNICATION FOR INI- TIALIZING IMPOSSIBL, INSPCTION, Subaru Select Monitor.> ABS00465 (1) Data link connector (2) Connect the diagnosis cable to data link connector. ABS(diag)-15

17 Subaru Select Monitor 11) When DTC is not displayed, check the meter circuit or CAN communication circuit. <Ref. to ABS(diag)-21, WITHOUT DTC, INSPCTION, Subaru Select Monitor.> Current Old Older Display Before 3 Contents to be monitored Indicate the latest DTC on the Subaru Select Monitor display. Indicate the latest DTC in previous trouble on the Subaru Select Monitor display. Indicate the latest DTC in second previous trouble on the Subaru Select Monitor display. Indicate the latest DTC in third previous trouble on the Subaru Select Monitor display. 2. RAD CURRNT DATA 1) On the «Main Menu» display screen, select the {ach System Check} and press the [YS] key. 2) On the «System Selection Menu» display screen, select the {Brake Control} and press the [YS] key. 3) Press the [YS] key after the {ABS} is displayed. 4) On the «Brake Control Diagnosis» screen, select the {Current Data Display/Save}, and then press the [YS] key. 5) On the «Data Display Menu» screen, select the data display style and press the [YS] key. 6) Using a scroll key, move the display screen up or down until necessary data is shown. A list of the support data is shown in the following table. Display Contents to be monitored Unit of measure FR Wheel Speed Wheel speed detected by front ABS wheel speed sensor RH is displayed. km/h or MPH FL Wheel Speed Wheel speed detected by front ABS wheel speed sensor LH is displayed. km/h or MPH RR Wheel Speed Wheel speed detected by rear ABS wheel speed sensor RH is displayed. km/h or MPH RL Wheel Speed Wheel speed detected by rear ABS wheel speed sensor LH is displayed. km/h or MPH BLS Signal Brake ON/OFF is displayed. ON or OFF G Sensor Vehicle acceleration detected by analog G sensor is displayed. m/s (m/s 2 ) Valve Relay Signal Valve relay operation signal is displayed. ON or OFF ABS Warning Light ON operation of the ABS warning light is displayed. ON or OFF BD Warning Light ON operation of the BD warning light is displayed. ON or OFF Motor Relay Monitor Motor relay monitor voltage is displayed. V IG power supply voltage Voltage supplied to ABSCM&H/U is displayed. V ABS Control Flag ABS control condition is displayed. ON or OFF ABS OK B Signal ABS system normal/abnormal is displayed. OK or NG NOT: For details concerning operation procedure, refer to the SUBARU SLCT MONITOR OPRATION MAN- UAL. ABS(diag)-16

18 Subaru Select Monitor 3. CLAR MMORY MOD 1) On the «Main Menu» display screen, select the {2. ach System Check} and press the [YS] key. 2) On the «System Selection Menu» display screen, select the {Brake Control} and press the [YS] key. 3) Press the [YS] key after the {ABS} is displayed. 4) On the «Brake Control Diagnosis» display screen, select the {Clear Memory} and press the [YS] key. Display Clear memory? Contents to be monitored Function of clearing DTC. 5) When Done and Turn ignition switch OFF are shown on the display screen, turn the Subaru Select Monitor and ignition switch to OFF. NOT: For details concerning operation procedure, refer to the SUBARU SLCT MONITOR OPRATION MANUAL. 4. ABS SQUNC CONTROL Display IG power supply voltage G Sensor Motor relay monitor BLS Signal Vehicle speed ABS Control Flag Power Supply Failure Contents to be monitored Voltage supplied (V) to ABSCM&H/U is displayed. Vehicle acceleration detected by analog G sensor is displayed. Motor relay condition is displayed. Brake ON/OFF is displayed. Vehicle speed calculated by ABS control module is displayed. ABS control condition is displayed. Whether abnormal voltage occurred or not is displayed during malfunction. Display Contents to be monitored Index No. ABS sequence control Operate the valve and pump motor continuously to perform the ABS sequence control. 5. FRZ FRAM DATA <Ref. to ABS- 10, ABS Sequence Control.> NOT: Data stored at the time of trouble occurrence is shown on display. ach time trouble occurs, the latest information is stored in the freeze frame data in memory. Freeze frame data will be memorized up to three. If a Freeze Frame Data is not properly stored in memory (due to a drop in ABS control module power supply, etc.), the DTC which is suffixed with a question mark? appears on the Subaru Select Monitor display. This shows it may be an unreliable reading. Display FR Wheel FL Wheel RR Wheel RL Wheel Contents to be monitored Wheel speed detected by the Front ABS wheel speed sensor RH is displayed in km/h or MPH. Wheel speed detected by the Front ABS wheel speed sensor LH is displayed in km/h or MPH. Wheel speed detected by the Rear ABS wheel speed sensor RH is displayed in km/h or MPH. Wheel speed detected by the Rear ABS wheel speed sensor LH is displayed in km/h or MPH. ABS(diag)-17

19 Subaru Select Monitor B: INSPCTION 1. COMMUNICATION FOR INITIALIZING IMPOSSIBL DTCTING CONDITION: Defective harness connector TROUBL SYMPTOM: Communication is impossible between ABS and Subaru Select Monitor. WIRING DIAGRAM: BATTRY SBF-1 SBF No.33 B No.13 IGNITION SWITCH DATA LINK CONNCTOR ABSCM & H/U B ABS00411 ABS(diag)-18

20 Subaru Select Monitor Step Check Yes No Go to step 2. 1 CHCK IGNITION SWITCH. Does the ignition switch turn to ON? 2 CHCK BATTRY. 1) Turn the ignition switch to OFF. 2) Measure the battery voltage. 3 CHCK BATTRY TRMINAL. Is there poor contact at battery terminal? 4 CHCK SUBARU SLCT MONITOR COM- MUNICATION. 1) Turn the ignition switch to ON. 2) Using Subaru Select Monitor, check whether communication to other system can be executed normally. 5 CHCK SUBARU SLCT MONITOR COM- MUNICATION. 1) Turn the ignition switch to OFF. 2) Disconnect the ABSCM&H/U connector. 3) Turn the ignition switch to ON. 4) Check whether communication to other systems can be executed normally. 6 CHCK HARNSS CONNCTOR BTWN ACH CONTROL MODUL AND DATA LINK CONNCTOR. 1) Turn the ignition switch to OFF. 2) Disconnect ABSCM&H/U, CM and TCM. 3) Measure the resistance between data link connector and chassis ground. (B40) No. 10 Chassis ground: 7 CHCK OUTPUT SIGNAL FOR ABSCM&H/ U. 1) Turn the ignition switch to ON. 2) Measure the voltage between ABSCM&H/ U and chassis ground. (B40) No. 10 (+) Chassis ground ( ): 8 CHCK HARNSS CONNCTOR BTWN ABSCM&H/U AND DATA LINK CONNC- TOR. Measure the resistance between ABSCM&H/U connector and data link connector. () No. 7 (B40) No. 10: 9 CHCK INSTALLATION OF ABSCM&H/U CONNCTOR. Turn the ignition switch to OFF. 10 CHCK POWR SUPPLY CIRCUIT. 1) Turn the ignition switch to ON. (engine OFF) 2) Measure the ignition power supply voltage between ABSCM&H/U connector and chassis ground. () No. 18 (+) Chassis ground ( ): Is the voltage more than 11 V? Go to step 3. Is the system name and model year displayed on Subaru Select Monitor? Is the system name and model year displayed on Subaru Select Monitor? Is the resistance more than 1 MΩ? Repair or tighten the battery terminal. Turn the ignition switch to ON, and select ABS mode using Subaru Select Monitor. Charge or replace the battery. Go to step 4. Go to step 8. Go to step 5. Replace ABSCM&H/U. <Ref. to ABS-6, ABS Control Module and Hydraulic Control Unit (ABSCM&H/U).> Go to step 7. Go to step 6. Repair the harness and connector between each control module and data link connector. Is the voltage less than 1 V? Go to step 8. Repair the harness and connector between each control module and data link connector. Is the resistance less than 0.5 Ω? Is the ABSCM&H/U connector inserted into ABSCM&H/U until it is locked by clamps? Go to step 9. Go to step 10. Repair the harness and connector between ABSCM&H/U and data link connector. Insert ABSCM&H/ U connector into ABSCM&H/U. Is the voltage V? Go to step 11. Repair the open circuit in harness between ABSCM&H/U and battery. ABS(diag)-19

21 Subaru Select Monitor Step Check Yes No Go to step CHCK HARNSS CONNCTOR BTWN ABSCM&H/U AND CHASSIS GROUND. 1) Turn the ignition switch to OFF. 2) Disconnect the connector from ABSCM&H/ U. 3) Measure the resistance of harness between ABSCM&H/U and chassis ground. () No. 15 Chassis ground: Is the resistance less than 0.5 Ω? 12 CHCK POOR CONTACT IN CONNCTOR. Is there poor contact in control Repair the connector. module power supply, ground circuit and data link connector? Repair the open circuit in harness between ABSCM&H/U and inhibitor side connector, and poor contact in coupling connector. Replace the ABSCM only. <Ref. to ABS-8, RPLACMNT, ABS Control Module and Hydraulic Control Unit (ABSCM&H/U).> ABS(diag)-20

22 Subaru Select Monitor 2. WITHOUT DTC DTCTING CONDITION: Defective combination meter Open in harness TROUBL SYMPTOM: ABS warning light does not go off. NO TROUBL COD will be displayed on the Subaru Select Monitor. NOT: When the ABS warning light is OFF and NO TROUBL COD is displayed on Subaru Select Monitor, the system is in normal condition. ABS(diag)-21

23 Subaru Select Monitor WIRING DIAGRAM: LHD model SBF-1 BATTRY SBF-7 IGNITION SWITCH No.5 No.33 BRAK WARNING LIGHT 4 COMBINATION MTR A: i10 B82 8 GROUND TRMINAL B ABS WARNING LIGHT i3 B ABSCM & H/U A: i10 B38 B ABS00459 ABS(diag)-22

24 Subaru Select Monitor RHD model SBF-1 BATTRY SBF-7 IGNITION SWITCH No.5 No.33 4 COMBINATION MTR A: i10 B82 8 GROUND TRMINAL B BRAK WARNING LIGHT ABS WARNING LIGHT 3 i1 B ABSCM & H/U A: i10 i1 B ABS00440 ABS(diag)-23

25 Subaru Select Monitor Step Check Yes No 1 DATA CHCK SUBARU SLCT MONITOR. Is ON indicated? Replace the Go to step 2. 1) Select {Current Data Display & Save} in Subaru Select Monitor. 2) Read the condition of ABS warning light. ABSCM only. <Ref. to ABS-8, RPLACMNT, ABS Control Module and Hydraulic Control Unit (ABSCM&H/U).> 2 CHCK WIRING HARNSS. Measure the resistance between ABSCM connector and combination meter connector. (i10) No. 5 () No. 22: Is the resistance less than 0.5 Ω? 3 CHCK POOR CONTACT IN CONNCTOR. Is there poor contact in ABSCM connector and combination meter connector? Go to step 3. Repair the connector. Repair the harness and connector between ABSCM&H/U and combination meter connector. Check the combination meter. ABS(diag)-24

26 7. Read Diagnostic Trouble Code (DTC) A: OPRATION For details about reading of DTCs, refer to Subaru Select Monitor. <Ref. to ABS(diag)-15, Subaru Select Monitor.> Read Diagnostic Trouble Code (DTC) ABS(diag)-25

27 8. Inspection Mode A: PROCDUR Reproduce the malfunction occurrence condition as possible. Drive the vehicle at a speed more than 40 km/h (25 MPH) for at least one minute. Inspection Mode ABS(diag)-26

28 9. Clear Memory Mode A: OPRATION For details concerning DTC clear operation, refer to Subaru Select Monitor. <Ref. to ABS(diag)-15, Subaru Select Monitor.> Clear Memory Mode ABS(diag)-27

29 ABS Warning Light / Brake Warning Light Illumination Pattern 10.ABS Warning Light / Brake Warning Light Illumination Pattern A: INSPCTION (4) (3) (3) (1) (2) (7) (5) (6) (8) (6) (7) (9) (6) (6) (10) (11) ABS00442 (1) Ignition switch (5) ABS warning light (9) Brake warning light (BD warning (2) OFF (6) Light OFF light) (3) ON (7) Light ON (10) Parking brake (4) Start (8) 1.5 seconds (11) Released ABS(diag)-28

30 ABS Warning Light / Brake Warning Light Illumination Pattern 1) When the ABS warning light and brake warning light do not illuminate in accordance with this illumination pattern, there must be an electrical malfunction. 2) When ABS warning light remains constantly OFF, check the combination meter circuit. <Ref. to ABS(diag)-30, ABS WARNING LIGHT DOS NOT COM ON, ABS Warning Light / Brake Warning Light Illumination Pattern.> 3) When ABS warning light does not go off, check the combination meter circuit. <Ref. to ABS(diag)-33, ABS WARNING LIGHT DOS NOT GO OFF, ABS Warning Light / Brake Warning Light Illumination Pattern.> 4) When brake warning light does not go off, check the brake warning light circuit, combination meter circuit. <Ref. to ABS(diag)-36, BRAK WARNING LIGHT DOS NOT GO OFF, ABS Warning Light / Brake Warning Light Illumination Pattern.> NOT: ven though the ABS warning light does not go off after 1.5 seconds from ABS warning light illumination, the ABS function operates normally when the warning light goes off while driving at approximately 12km/h (7 MPH). However, the ABS function does not operate while the ABS warning light is illuminated. ABS(diag)-29

31 ABS Warning Light / Brake Warning Light Illumination Pattern B: ABS WARNING LIGHT DOS NOT COM ON DTCTING CONDITION: Defective combination meter Defective harness TROUBL SYMPTOM: When the ignition switch is turned to ON (engine OFF), ABS warning light does not come on. WIRING DIAGRAM: LHD model SBF-1 BATTRY SBF-7 IGNITION SWITCH No.5 No.33 BRAK WARNING LIGHT 4 COMBINATION MTR A: i10 B82 8 GROUND TRMINAL B ABS WARNING LIGHT i3 B ABSCM & H/U A: i10 B38 B ABS00459 ABS(diag)-30

32 RHD model ABS Warning Light / Brake Warning Light Illumination Pattern SBF-1 BATTRY SBF-7 IGNITION SWITCH No.5 No.33 4 COMBINATION MTR A: i10 B82 8 GROUND TRMINAL B BRAK WARNING LIGHT ABS WARNING LIGHT 3 i1 B ABSCM & H/U A: i10 i1 B ABS00440 ABS(diag)-31

33 ABS Warning Light / Brake Warning Light Illumination Pattern Step Check Yes No Do other warning lights illuminate? Go to step 2. 1 CHCK ILLUMINATION OF OTHR LIGHTS. Turn the ignition switch to ON. (engine OFF) 2 RAD DTC. Read the DTC. <Ref. to ABS(diag)-25, Read Diagnostic Trouble Code (DTC).> 3 CHCK GROUND SHORT OF HARNSS. 1) Turn the ignition switch to OFF. 2) Disconnect the connector () from ABSCM&H/U. 3) Disconnect the connector (i10) from the combination meter. 4) Measure the resistance between ABSCM connector and chassis ground. () No. 22 Chassis ground: 4 CHCK ABSCM. 1) Connect the connector () to the ABSCM&H/U. 2) Turn the ignition to ON. 3) Immediately after turning ignition switch to ON (within 1.5 seconds), measure the resistance of harness between the combination meter connector and chassis ground. (i10) No. 5 Chassis ground: Is DTC displayed? Is the resistance more than 1 MΩ? Is the resistance more than 1 MΩ? Perform the diagnosis according to DTC. Go to step 4. Check the combination meter. Check the combination meter. Go to step 3. Repair the harness and connector between ABSCM&H/U and combination meter connector. Replace the ABSCM only. <Ref. to ABS-8, RPLACMNT, ABS Control Module and Hydraulic Control Unit (ABSCM&H/U).> ABS(diag)-32

34 ABS Warning Light / Brake Warning Light Illumination Pattern C: ABS WARNING LIGHT DOS NOT GO OFF DTCTING CONDITION: Defective combination meter Open in harness TROUBL SYMPTOM: When starting the engine, the ABS warning light is kept on. WIRING DIAGRAM: LHD model SBF-1 BATTRY SBF-7 IGNITION SWITCH No.5 No.33 BRAK WARNING LIGHT 4 COMBINATION MTR A: i10 B82 8 GROUND TRMINAL B ABS WARNING LIGHT i3 B ABSCM & H/U A: i10 B38 B ABS00459 ABS(diag)-33

35 ABS Warning Light / Brake Warning Light Illumination Pattern RHD model SBF-1 BATTRY SBF-7 IGNITION SWITCH No.5 No.33 4 COMBINATION MTR A: i10 B82 8 GROUND TRMINAL B BRAK WARNING LIGHT ABS WARNING LIGHT 3 i1 B ABSCM & H/U A: i10 i1 B ABS00440 ABS(diag)-34

36 ABS Warning Light / Brake Warning Light Illumination Pattern Step Check Yes No 1 RAD DTC. Read the DTC. <Ref. to ABS(diag)-25, Read Diagnostic Trouble Code (DTC).> Is DTC displayed? Perform the diagnosis according to DTC. Go to step 2. 2 CHCK WIRING HARNSS. 1) Turn the ignition switch to OFF. 2) Disconnect the connector () from ABSCM&H/U. 3) Disconnect the connector (i10) from the combination meter. 4) Measure the resistance between ABSCM connector and combination meter connector. () No. 22 (i10) No. 5: 3 CHCK POOR CONTACT IN CONNCTOR. Check poor contact in all connectors. 4 CHCK ABSCM. 1) Connect the connector () to the ABSCM&H/U. 2) Turn the ignition switch to ON. 3) Measure the resistance between combination meter connector and chassis ground. (i10) No. 5 Chassis ground: Is the resistance less than 0.5 Ω? Is there poor contact? Is the resistance less than 0.5 Ω? Go to step 3. Repair the connector. Check the combination meter. Repair the harness and connector between ABSCM&H/U and combination meter connector. Go to step 4. Replace the ABSCM only. <Ref. to ABS-8, RPLACMNT, ABS Control Module and Hydraulic Control Unit (ABSCM&H/U).> ABS(diag)-35

37 ABS Warning Light / Brake Warning Light Illumination Pattern D: BRAK WARNING LIGHT DOS NOT GO OFF DTCTING CONDITION: Brake warning light circuit is shorted. Defective sensor/connector TROUBL SYMPTOM: After starting the engine, the brake warning light is kept on though the parking lever is released. WIRING DIAGRAM: LHD model SBF-1 BATTRY SBF-7 IGNITION SWITCH No.5 BRAK WARNING LIGHT A4 A3 A: i10 BRAK FLUID LVL SWITCH i1 B36 A8 16 A7 20 i3 B38 8 ABSCM & H/U 1 2 B16 B R1 B229 R4 PARKING BRAK SWITCH B16 i1 A: i B B B ABS00460 ABS(diag)-36

38 RHD model ABS Warning Light / Brake Warning Light Illumination Pattern SBF-1 BATTRY SBF-7 IGNITION SWITCH NO.5 BRAK WARNING LIGHT A4 A3 A: i10 BRAK FLUID LVL SWITCH 1 2 B A8 4 A7 B97 R1 i1 B B229 8 ABSCM & H/U R4 PARKING BRAK SWITCH B16 i1 A: i B B ABS00412 ABS(diag)-37

39 ABS Warning Light / Brake Warning Light Illumination Pattern Step Check Yes No Is the connector correctly Go to step 2. inserted? 1 CHCK INSTALLATION OF ABSCM&H/U CONNCTOR. 1) Turn the ignition switch to OFF. 2) Check that the ABSCM&H/U connector is inserted to ABSCM&H/U until the clamp locks onto it. 2 RAD DTC. Read the DTC. <Ref. to ABS(diag)-25, Read Diagnostic Trouble Code (DTC).> 3 CHCK TH BRAK FLUID AMOUNT. Check the amount of brake fluid in the reservoir tank of master cylinder. 4 CHCK BRAK FLUID LVL SWITCH. 1) Disconnect the level switch connector (B16) from master cylinder. 2) Measure the resistance of master cylinder terminals. Terminals No. 1 No. 2: 5 CHCK PARKING BRAK SWITCH. 1) Disconnect the connector (R4) from parking brake switch. 2) Release the parking brake. 3) Measure the resistance between parking brake switch terminal and chassis ground. 6 CHCK GROUND SHORT OF HARNSS. 1) Disconnect the connector (i10) from combination meter. 2) Measure the resistance between combination meter connector and chassis ground. (i10) No. 8 Chassis ground: 7 CHCK HARNSS. 1) Disconnect the connector () from ABSCM&H/U. 2) Disconnect the connector (i10) from the combination meter. 3) Measure the resistance between ABSCM&H/U connector and combination meter connector. () No. 8 (i10) No. 7: 8 CHCK POOR CONTACT IN CONNCTOR. Check poor contact in all connectors. Is DTC displayed? Is the amount of brake fluid between the lines of MAX and MIN? Is the resistance more than 1 MΩ? Is the resistance more than 1 MΩ? Is the resistance more than 1 MΩ? Is the resistance less than 0.5 Ω? Is there poor contact? 9 CHCK ABSCM. Is the resistance less than 0.5 1) Connect the connector to the ABSCM&H/U. Ω? 2) Turn the ignition switch to ON. 3) Measure the resistance between combination meter connector and chassis ground. (i10) No. 7 Chassis ground: Perform the diagnosis according to DTC. Go to step 4. Go to step 5. Go to step 6. Go to step 7. Go to step 8. Repair the connector. Check the combination meter. Insert the ABSCM&H/U connector until the clamp locks onto it. Go to step 3. Replenish brake fluid to the specified value. Replace the master cylinder. Replace the parking brake switch. Repair the harness connector between combination meter and parking brake switch. Repair harness between ABSCM&H/U and combination meter connector. Go to step 9. Replace the ABSCM only. <Ref. to ABS-8, RPLACMNT, ABS Control Module and Hydraulic Control Unit (ABSCM&H/U).> ABS(diag)-38

40 List of Diagnostic Trouble Code (DTC) 11.List of Diagnostic Trouble Code (DTC) A: LIST DTC Content of diagnosis Display Reference target C0101 C0102 C0103 C0104 C0105 C0106 C0107 C0108 C0109 ABS wheel speed sensor malfunction (Broken wire, short) ABS wheel speed sensor malfunction (ABS wheel speed sensor abnormal signal) Power voltage malfunction Rear ABS wheel speed sensor RH Rear ABS wheel speed sensor LH Front ABS wheel speed sensor RH Front ABS wheel speed sensor LH Abnormal signal of rear ABS wheel speed sensor RH Abnormal signal of rear ABS wheel speed sensor LH Abnormal signal of front ABS wheel speed sensor RH Abnormal signal of front ABS wheel speed sensor LH C0110 ABS control module malfunction CM Rear Right ABS Sensor Circuit Open or Shorted Battery Rear Left ABS Sensor Circuit Open or Shorted Battery Front Right ABS Sensor Circuit Open or Shorted Battery Front Left ABS Sensor Circuit Open or Shorted Battery Rear Right ABS Sensor Signal Rear Left ABS Sensor Signal Front Right ABS Sensor Signal Front Left ABS Sensor Signal Power Supply Voltage Failure C0111 Motor/motor relay on failure Motor and Motor Relay C0114 Valve relay on failure Valve Relay <Ref. to ABS(diag)-42, DTC C0101 ABS WHL SPD SNSOR RR MALFUNC- TION (BROKN WIR, INPUT VOLTAG TOO HIGH), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-42, DTC C0102 ABS WHL SPD SNSOR RL MALFUNC- TION (BROKN WIR, INPUT VOLTAG TOO HIGH), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-42, DTC C0103 ABS WHL SPD SNSOR FR MALFUNC- TION (BROKN WIR, INPUT VOLTAG TOO HIGH), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-43, DTC C0104 ABS WHL SPD SNSOR FL MALFUNC- TION (BROKN WIR, INPUT VOLTAG TOO HIGH), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-46, DTC C0105 ABS WHL SPD SNSOR RR MALFUNC- TION (ABS WHL SPD SNSOR ABNORMAL SIGNAL), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-46, DTC C0106 ABS WHL SPD SNSOR RL MALFUNC- TION (ABS WHL SPD SNSOR ABNORMAL SIGNAL), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-46, DTC C0107 ABS WHL SPD SNSOR FR MALFUNC- TION (ABS WHL SPD SNSOR ABNORMAL SIGNAL), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-47, DTC C0108 ABS WHL SPD SNSOR FL MALFUNC- TION (ABS WHL SPD SNSOR ABNORMAL SIGNAL), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-65, DTC C0109 POWR VOLTAG MALFUNCTION, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-63, DTC C0110 ABS CONTROL MODUL MALFUNCTION, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-71, DTC C0111 MOTOR/MOTOR RLAY MALFUNCTION, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-69, DTC C0114 VALV RLAY MALFUNCTION, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> ABS(diag)-39

41 List of Diagnostic Trouble Code (DTC) DTC Content of diagnosis Display Reference target C0115 ABS wheel speed sensor malfunction (ABS wheel speed sensor abnormal signal) Abnormal ABS wheel speed sensor on any one of four sensors Any One of Four ABS Sensors Signal C0116 Stop light switch signal circuit malfunction Brake Light Switch C0118 Faulty G sensor output voltage G Sensor Failure C0119 Abnormal G sensor output voltage G Sensor Signal C0120 C0121 C0122 C0123 C0124 C0125 C0126 Inlet valve malfunction in hydraulic unit Outlet valve malfunction in hydraulic unit Inlet valve malfunction in hydraulic unit Outlet valve malfunction in hydraulic unit Inlet valve malfunction in hydraulic unit Outlet valve malfunction in hydraulic unit Inlet valve malfunction in hydraulic unit Front inlet valve LH Front outlet valve LH Front inlet valve RH Front outlet valve RH Rear inlet valve LH Rear outlet valve LH Rear inlet valve RH FL Hold Valve malfunction FL Pressure Reducing Valve malfunction FR Hold Valve malfunction FR Pressure Reducing Valve malfunction RL Hold Valve malfunction RL Pressure Reducing Valve malfunction RR Hold Valve malfunction <Ref. to ABS(diag)-51, DTC C0115 ABS WHL SPD SNSOR SIGNAL MAL- FUNCTION IN ON OF FOUR WHLS, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-74, DTC C0116 FAULTY STOP LIGHT SWITCH, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-76, DTC C0118 G SN- SOR OUTPUT VOLTAG MALFUNCTION, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-79, DTC C0119 G SN- SOR OUTPUT VOLTAG MALFUNCTION, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-55, DTC C0120 FRONT INLT SOLNOID VALV LH MALFUNC- TION IN ABS CONTROL MODUL AND HYDRAULIC CONTROL UNIT (ABSCM&H/ U), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-59, DTC C0121 FRONT OUTLT SOLNOID VALV LH MAL- FUNCTION IN ABS CONTROL MODUL AND HYDRAULIC CONTROL UNIT (ABSCM&H/U), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-55, DTC C0122 FRONT INLT SOLNOID VALV RH MALFUNC- TION IN ABS CONTROL MODUL AND HYDRAULIC CONTROL UNIT (ABSCM&H/ U), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-59, DTC C0123 FRONT OUTLT SOLNOID VALV RH MAL- FUNCTION IN ABS CONTROL MODUL AND HYDRAULIC CONTROL UNIT (ABSCM&H/U), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-55, DTC C0124 RAR INLT SOLNOID VALV LH MALFUNC- TION IN ABS CONTROL MODUL AND HYDRAULIC CONTROL UNIT (ABSCM&H/ U), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-59, DTC C0125 RAR OUTLT SOLNOID VALV LH MAL- FUNCTION IN ABS CONTROL MODUL AND HYDRAULIC CONTROL UNIT (ABSCM&H/U), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-56, DTC C0126 RAR INLT SOLNOID VALV RH MALFUNC- TION IN ABS CONTROL MODUL AND HYDRAULIC CONTROL UNIT (ABSCM&H/ U), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> ABS(diag)-40

42 List of Diagnostic Trouble Code (DTC) DTC Content of diagnosis Display Reference target C0127 C0140 Outlet valve malfunction in hydraulic unit CAN communication malfunction Rear outlet valve RH RR Pressure Reducing Valve malfunction Improper CAN communication <Ref. to ABS(diag)-60, DTC C0127 RAR OUTLT SOLNOID VALV RH MAL- FUNCTION IN ABS CONTROL MODUL AND HYDRAULIC CONTROL UNIT (ABSCM&H/U), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to ABS(diag)-68, DTC C0140 CAN COMMUNICATION MALFUNCTION, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> ABS(diag)-41

43 Diagnostic Procedure with Diagnostic Trouble Code (DTC) 12.Diagnostic Procedure with Diagnostic Trouble Code (DTC) A: DTC C0101 ABS WHL SPD SNSOR RR MALFUNCTION (BROKN WIR, INPUT VOLTAG TOO HIGH) NOT: For the diagnostic procedure, refer to DTC C0104. <Ref. to ABS(diag)-43, DTC C0104 ABS WHL SPD SNSOR FL MALFUNCTION (BROKN WIR, INPUT VOLTAG TOO HIGH), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> B: DTC C0102 ABS WHL SPD SNSOR RL MALFUNCTION (BROKN WIR, INPUT VOLTAG TOO HIGH) NOT: For the diagnostic procedure, refer to DTC C0104. <Ref. to ABS(diag)-43, DTC C0104 ABS WHL SPD SNSOR FL MALFUNCTION (BROKN WIR, INPUT VOLTAG TOO HIGH), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> C: DTC C0103 ABS WHL SPD SNSOR FR MALFUNCTION (BROKN WIR, INPUT VOLTAG TOO HIGH) NOT: For the diagnostic procedure, refer to DTC C0104. <Ref. to ABS(diag)-43, DTC C0104 ABS WHL SPD SNSOR FL MALFUNCTION (BROKN WIR, INPUT VOLTAG TOO HIGH), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> ABS(diag)-42

44 Diagnostic Procedure with Diagnostic Trouble Code (DTC) D: DTC C0104 ABS WHL SPD SNSOR FL MALFUNCTION (BROKN WIR, INPUT VOLTAG TOO HIGH) DTC DTCTING CONDITION: Defective ABS wheel speed sensor (broken wire, input voltage too high) Defective harness connector TROUBL SYMPTOM: ABS does not operate. WIRING DIAGRAM: LHD model ABSCM & H/U B98 TWISTD WIR 1 2 B15 TWISTD WIR 1 2 B6 TWISTD WIR R73 TWISTD WIR R2 R72 FRONT ABS WHL SPD SNSOR LH FRONT ABS WHL SPD SNSOR RH RAR ABS WHL SPD SNSOR LH RAR ABS WHL SPD SNSOR RH B6 R72 B98 B15 R ABS00461 ABS(diag)-43

45 Diagnostic Procedure with Diagnostic Trouble Code (DTC) RHD model ABSCM & H/U B97 TWISTD WIR 1 2 B15 TWISTD WIR 1 2 B6 TWISTD WIR R73 TWISTD WIR R1 R72 FRONT ABS WHL SPD SNSOR LH FRONT ABS WHL SPD SNSOR RH RAR ABS WHL SPD SNSOR LH RAR ABS WHL SPD SNSOR RH B6 R72 B97 B15 R ABS00413 ABS(diag)-44

46 Diagnostic Procedure with Diagnostic Trouble Code (DTC) Step Check Yes No 1 CHCK POOR CONTACT IN CONNCTOR. Check the poor contact between ABSCM&H/U and ABS wheel speed sensor. Is there poor contact? Repair the connector. Go to step 2. 2 CHCK HARNSS CONNCTOR BTWN ABSCM&H/U AND ABS WHL SPD SNSOR. 1) Disconnect the connector () from ABSCM&H/U. 2) Disconnect the connector from ABS wheel speed sensor. 3) Measure the resistance between ABSCM&H/U connector and ABS wheel speed sensor connector. DTC C0101 () No. 3 (R72) No. 1: () No. 4 (R72) No. 2: DTC C0102 () No. 2 (R73) No. 1: () No. 17 (R73) No. 2: DTC C0103 () No. 5 (B6) No. 1: () No. 6 (B6) No. 2: DTC C0104 () No. 16 (B15) No. 1: () No. 1 (B15) No. 2: 3 CHCK GROUND SHORT OF HARNSS. Measure the resistance between ABSCM&H/U connector and chassis ground. DTC C0101 () No. 4 Chassis ground: DTC C0102 () No. 17 Chassis ground: DTC C0103 () No. 6 Chassis ground: DTC C0104 () No. 1 Chassis ground: 4 CHCK ABS WHL SPD SNSOR POW- R SUPPLY CIRCUIT. 1) Connect the ABSCM&H/U connector. 2) Turn the ignition switch to ON. 3) Measure the voltage between ABS wheel speed sensor connector and chassis ground. DTC C0101 (R72) No. 1 Chassis ground ( ): DTC C0102 (R73) No. 1 Chassis ground ( ): DTC C0103 (B6) No. 1 (+) Chassis ground ( ): DTC C0104 (B15) No. 1 (+) Chassis ground ( ): Is the resistance less than 0.5 Ω? Is the resistance more than 1 MΩ? Go to step 3. Go to step 4. Repair the harness connector between ABSCM&H/U and ABS wheel speed sensor. Repair the harness connector between ABSCM&H/U and ABS wheel speed sensor. Is the voltage 5 16 V? Go to step 6. Go to step 5. ABS(diag)-45

47 Diagnostic Procedure with Diagnostic Trouble Code (DTC) Step Check Yes No 5 CHCK ABSCM&H/U POWR SUPPLY CIR- CUIT. 1) Turn the ignition switch to OFF. 2) Disconnect the ABSCM&H/U connector. 3) Turn the ignition switch to ON. 4) Measure the voltage between ABSCM&H/ U connector and chassis ground. () No. 18 (+) () No. 15 ( ): 6 CHCK ABS WHL SPD SNSOR SIG- NAL. 1) Install the ABS wheel speed sensor. 2) Prepare an oscilloscope. 3) Check ABS wheel speed sensor. <Ref. to ABS-13, ABS WHL SPD SNSOR, INSPCTION, Front ABS Wheel Speed Sensor.> 7 CHCK ABSCM&H/U. 1) Connect all the connectors. 2) rase the memory. 3) Perform the inspection mode. <Ref. to ABS(diag)-17, CLAR MMORY MOD, OPRATION, Subaru Select Monitor.> 4) Read the DTC. Is the voltage V? Go to step 7. Check the generator, battery, ABSCM&H/U power circuit. Is the pattern the same waveform as shown in the figure? Is the same DTC displayed? Go to step 7. Replace the ABSCM only. <Ref. to ABS-8, RPLACMNT, ABS Control Module and Hydraulic Control Unit (ABSCM&H/U).> 8 CHCK ANY OTHR DTC ON DISPLAY. Is any other DTC displayed? Perform the diagnosis according to DTC. Replace the speed sensor. Go to step 8. It results from a temporary noise interference. : DTC C0105 ABS WHL SPD SNSOR RR MALFUNCTION (ABS WHL SPD SNSOR ABNORMAL SIGNAL) NOT: For the diagnostic procedure, refer to DTC C0108. <Ref. to ABS(diag)-47, DTC C0108 ABS WHL SPD SNSOR FL MALFUNCTION (ABS WHL SPD SNSOR ABNORMAL SIGNAL), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> F: DTC C0106 ABS WHL SPD SNSOR RL MALFUNCTION (ABS WHL SPD SNSOR ABNORMAL SIGNAL) NOT: For the diagnostic procedure, refer to DTC C0108. <Ref. to ABS(diag)-47, DTC C0108 ABS WHL SPD SNSOR FL MALFUNCTION (ABS WHL SPD SNSOR ABNORMAL SIGNAL), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> G: DTC C0107 ABS WHL SPD SNSOR FR MALFUNCTION (ABS WHL SPD SNSOR ABNORMAL SIGNAL) NOT: For the diagnostic procedure, refer to DTC C0108. <Ref. to ABS(diag)-47, DTC C0108 ABS WHL SPD SNSOR FL MALFUNCTION (ABS WHL SPD SNSOR ABNORMAL SIGNAL), Diagnostic Procedure with Diagnostic Trouble Code (DTC).> ABS(diag)-46

48 Diagnostic Procedure with Diagnostic Trouble Code (DTC) H: DTC C0108 ABS WHL SPD SNSOR FL MALFUNCTION (ABS WHL SPD SNSOR ABNORMAL SIGNAL) DTC DTCTING CONDITION: Defective ABS wheel speed sensor signal (noise, abnormal signal, etc.) Defective harness connector TROUBL SYMPTOM: ABS does not operate. WIRING DIAGRAM: LHD model ABSCM & H/U B98 TWISTD WIR 1 2 B15 TWISTD WIR 1 2 B6 TWISTD WIR R73 TWISTD WIR R2 R72 FRONT ABS WHL SPD SNSOR LH FRONT ABS WHL SPD SNSOR RH RAR ABS WHL SPD SNSOR LH RAR ABS WHL SPD SNSOR RH B6 R72 B98 B15 R ABS00461 ABS(diag)-47