2009 SUBARU TRIBECA Service Workshop Manual

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Page 753 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual BR-39
Brake Vacuum Pump
BRAKE
16.Brake Vacuum Pump
A: REMOVAL
1. BRAKE VACUUM PUMP
1) Disconnect the ground cable from the battery.
2) Disconnect the brake vacuum pump connector.
3) Remove the vacuum

Page 754 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual BR-40
Brake Vacuum Sensor
BRAKE
17.Brake Vacuum Sensor
A: REMOVAL
1) Disconnect the ground cable from the battery.
2) Disconnect the brake vacuum sensor connector.
3) Remove the vacuum hose from the b

Page 755 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual BR-41
General Diagnostic Table
BRAKE
18.General Diagnostic Table
A: INSPECTION
Trouble and possible causeCorrective action
1. Insufficient braking
performance
(1) Fluid leakage from the hydraulic me

BR-41
General Diagnostic Table
BRAKE
18.General Diagnostic Table
A: INSPECTION
Trouble and possible causeCorrective action
1. Insufficient braking
performance
(1) Fluid leakage from the hydraulic mechanism Correct or replace. (cup, piston seal, piston
boot, master cylinder piston kit, pipe or
hose)
(2) Entry of air into the hydraulic mechanism Bleed air.
(3) Wear, deteriorated surface material, water or fluid on
lining
Replace, grind or clean.
(4) Improper operation of master cylinder, disc caliper,
brake booster or check valve
Correct or replace.
2. Unstable or uneven
braking
(1) Fluid on lining or rotor Correct the cause of fluid leakage, and
clean or replace.
(2) Rotor defective Repair or replace the rotor.
(3) Improper lining contact, deteriorated surface, deterio-
rated or wear lining material
Repair by grinding, or replace.
(4) Deformed back plate Repair or replace.
(5) Over inflation of tires Adjust air pressure.
(6) Defective wheel alignment Adjust alignment.
(7) Loose back plate or suppor t installation bolt Tighten to the specified torque.
(8) Faulty wheel bearing Replace.
(9) Defective hydraulic system Replace the cylinder, brake pipe or hose.
(10) Unstable effect of parking brake Check, adjust or replace the rear brake and
cable system.
3. Excessive pedal
stroke
(1) Entry of air into the hydraulic mechanism Bleed air.
(2) Excessive play in the master cylinder push rod Adjust.
(3) Fluid leakage from the hydraulic mechanism Correct or replace. (cup, piston seal, piston
boot, master cylinder piston kit, pipe or
hose)
(4) Improper lining contact or worn lining Correct or replace.
4. Brake dragging or
improper brake
return
(1) Insufficient pedal play Adjust play.
(2) Improper master cylinder return Clean or replace the cylinder.
(3) Clogged hydraulic system Replace.
(4) Improper return or adjustment of parking brake Repair or adjust.
(5) Weakened spring tension or breakage of shoe return
spring
Replace the spring.
(6) Improper disc caliper operation Correct or replace.
(7) Faulty wheel bearing Replace.
Brake noise (1)
(creaking sound)
(1) Hardened or deteriorated brake pad Replace the pad.
(2) Worn brake pad Replace the pad.
(3) Loose back plate or suppor t installation bolt Tighten to the specified torque.
(4) Loose wheel bearing Tighten to the specified torque.
(5) Dir ty rotor Clean the rotor, or clean and replace brake
assembly.
6. Brake noise (2)
(hissing sound)
(1) Worn brake pad Replace the pad.
(2) Improperly installed pad Correct or replace the pad.
(3) Loose or bent rotor Retighten or replace.
7. Brake noise (3)
(click sound)
Excessively worn pad or suppor t Replace the pad or the suppor t.

Page 756 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual BR-42
General Diagnostic Table
BRAKE

Page 757 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual BVC(diag)-2
Basic Diagnostic Procedure
BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
CAUTION:
•Subaru Select Monitor is required for reading DTC, reading the cu

Page 758 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual BVC(diag)-3
Check List for Interview
BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
2. Check List for Interview
A: CHECK
Check the following item about the vehicle’s state.
1. STATUS OF THE ERROR DISPLAY

Page 759 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual BVC(diag)-4
Check List for Interview
BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
2. CONDITIONS UNDER WHICH TROUBLE OCCURS
Environment a) Weather Fine
Cloudy
Rainy
Snowy
Others:
b) Ambient temperature

Page 760 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual BVC(diag)-5
General Description
BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
3. General Description
A: CAUTION
1. SRS AIRBAG SYSTEM
Airbag system wiring harness is routed near the ABS wheel speed sensor a

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