SUBARU TRIBECA 2009 1.G Service Workshop Manual

BVC(diag)-26
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
E: DTC 22 DISCREPANCY IN RELAYS (OFF)
DTC DETECTING CONDITION:
Brake vacuum pump relay malfunction
TROUBLE SYMPTOM:
Vacuum pump does not operate properly.
WIRING DIAGRAM:
BR-00528
2
1
B25B
B422
1234
B432
2
1
4
36
5
8
7
B432
SBF HOLDER
3
7
14
21
53
43
VC2
VC3
B422
B422
VC3
RELAY BOX(VACUUMPUMP RELAY)
B417
VAC U U MPUMP
26
41
B47
MAINRELAY
B411
VAC U U M S E N S O RECM
A: B134B: B135C: B136
C23B30B22A27C8312
JOINT CONNECTOR
B424
**
B417B411
213
B: C:B135
5672134
29
101112131415252416
30
98171819202821222332312627333435
B136
16101112131415252430
9871718192028212223293231
123456
2726333435
VC2
A:B134
85610 11 12 13 14 157213416
3019 20 2228 29
91718252123 24323126 2733 34
B424
34561278
(BROWN)
21
5436
B47
* : TERMINAL NO. OPTIONAL ARRANGEMENT
21
SBF-7BATTERY
30A
3412
5
8967
10131211
14

BVC(diag)-27
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
Step Check Yes No
1CHECK BRAKE VACUUM PUMP RELAY.
1) Turn the ignition switch to OFF.
2) Remove the brake vacuum pump relay from
the relay box.
3) Connect the battery to terminals No. 1 and
No. 3 of the brake vacuum pump relay.
4) Measure the resistance between the brake
vacuum pump relay terminals.
Te r m i n a l s
No. 4 — No. 5:
Is the resistance less than 1
Ω?
Go to step 2.Replace the brake
vacuum pump
relay.
2CHECK BRAKE VACUUM PUMP RELAY
POWER SUPPLY.
1) Turn the ignition switch to ON.
2) Measure the voltage between brake vac-
uum pump relay connector and chassis
ground.
Connector & terminal
(VC2) No. 1 (+) — Chassis ground (–):
(VC2) No. 4 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 3.Repair the open or
ground short cir-
cuit of power sup-
ply circuit.
3CHECK HARNESS BETWEEN ECM AND
BRAKE VACUUM PUMP RELAY CONNEC-
TOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector of ECM.
3) Measure the resistance of the harness
between ECM and the brake vacuum pump
relay connector.
Connector & terminal
(B136) No. 8 — (VC2) No. 3:
(B135) No. 25 — (VC2) No. 5:
Is the resistance less than 1
Ω?
Go to step 4.Repair the open
circuit of harness
between ECM and
the brake vacuum
pump relay con-
nector.
4CHECK HARNESS BETWEEN THE BRAKE
VACUUM PUMP AND BRAKE VACUUM
PUMP RELAY CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the brake vacuum pump con-
nector.
3) Measure the resistance of the harness
between the brake vacuum pump and brake
vacuum pump relay connector.
Connector & terminal
(VC2) No. 5 — (B417) No. 1:
Is the resistance less than 1
Ω?
Go to step 5.Repair the open
circuit of the har-
ness between the
brake vacuum
pump and the
brake vacuum
pump relay con-
nector.
5CHECK ECM.
1) Connect the brake vacuum pump relay.
2) Connect the connectors to the brake vac-
uum pump and ECM.
3) Turn the ignition switch to ON.
4) Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B136) No. 8 — Chassis ground (–):
Is the voltage more than 10 V? Replace the ECM.
<Ref. to
FU(H6DO)-32,
Engine Control
Module (ECM).>
Te m p o r a r y p o o r
contact occurs.

BVC(diag)-28
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
F: DTC 23 PUMP CONTINUOUS OPERATION
DTC DETECTING CONDITION:
Brake vacuum pump malfunction
TROUBLE SYMPTOM:
Break vacuum pump operates continuously.
WIRING DIAGRAM:
BR-00528
2
1
B25B
B422
1234
B432
2
1
4
36
5
8
7
B432
SBF HOLDER
3
7
14
21
53
43
VC2
VC3
B422
B422
VC3
RELAY BOX(VACUUMPUMP RELAY)
B417
VAC U U MPUMP
26
41
B47
MAINRELAY
B411
VAC U U M S E N S O RECM
A: B134B: B135C: B136
C23B30B22A27C8312
JOINT CONNECTOR
B424
**
B417B411
213
B: C:B135
5672134
29
101112131415252416
30
98171819202821222332312627333435
B136
16101112131415252430
9871718192028212223293231
123456
2726333435
VC2
A:B134
85610 11 12 13 14 157213416
3019 20 2228 29
91718252123 24323126 2733 34
B424
34561278
(BROWN)
21
5436
B47
* : TERMINAL NO. OPTIONAL ARRANGEMENT
21
SBF-7BATTERY
30A
3412
5
8967
10131211
14

BVC(diag)-29
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
Step Check Yes No
1CHECK BRAKE VACUUM HOSE.
1) Turn the ignition switch to OFF.
2) Check that status of the brake vacuum
hose connection.
Is the brake vacuum hose con-
nected firmly?
Go to step 2.Connect the brake
vacuum hose.
2CHECK BRAKE VACUUM HOSE.
1) Turn the ignition switch to ON and start
engine.
2) Check for leakage from the brake vacuum
hose.
Is there a leak from the brake
vacuum hose?
Replace the brake
vacuum hose.
Go to step 3.
3CHECK BRAKE VACUUM PUMP RELAY.
1) Turn the ignition switch to OFF.
2) Remove the brake vacuum pump relay from
the relay box.
3) Connect the battery to terminals No. 1 and
No. 3 of the brake vacuum pump relay.
4) Measure the resistance between the brake
vacuum pump relay terminals.
Te r m i n a l s
No. 4 — No. 5:
Is the resistance less than 1
Ω?
Go to step 4.Replace the brake
vacuum pump
relay.
4CHECK BRAKE VACUUM PUMP RELAY
POWER SUPPLY.
1) Turn the ignition switch to ON.
2) Measure the voltage between brake vac-
uum pump relay connector and chassis
ground.
Connector & terminal
(VC2) No. 1 (+) — Chassis ground (–):
(VC2) No. 4 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 5.Repair the open or
ground short cir-
cuit of power sup-
ply circuit.
5CHECK HARNESS BETWEEN ECM AND
BRAKE VACUUM PUMP RELAY CONNEC-
TOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector of ECM.
3) Measure the resistance of the harness
between ECM and the brake vacuum pump
relay connector.
Connector & terminal
(B136) No. 8 — (VC2) No. 3:
(B135) No. 25 — (VC2) No. 5:
Is the resistance less than 1
Ω?
Go to step 6.Repair the open
circuit of harness
between ECM and
the brake vacuum
pump relay con-
nector.
6CHECK HARNESS BETWEEN THE BRAKE
VACUUM PUMP AND BRAKE VACUUM
PUMP RELAY CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the brake vacuum pump con-
nector.
3) Measure the resistance of the harness
between the brake vacuum pump and brake
vacuum pump relay connector.
Connector & terminal
(VC2) No. 5 — (B417) No. 1:
Is the resistance less than 1
Ω?
Go to step 7.Repair the open
circuit of the har-
ness between the
brake vacuum
pump and the
brake vacuum
pump relay con-
nector.
7CHECK ECM.
1) Connect the brake vacuum pump relay.
2) Connect the connectors to the brake vac-
uum pump and ECM.
3) Turn the ignition switch to ON.
4) Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B136) No. 8 — Chassis ground (–):
Is the voltage more than 10 V? Replace the ECM.
<Ref. to
FU(H6DO)-32,
Engine Control
Module (ECM).>
Te m p o r a r y p o o r
contact occurs.

BVC(diag)-30
General Diagnostic Table
BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
12.General Diagnostic Table
A: INSPECTION
Symptom Main probable cause Other probable cause
Po or b rake pe r -
for mance
Long braking/
stopping dis-
tance
•Brake pad
•Aeration to brake line
•Tire specifications, tire wear and air
pressures
•Incorrect wiring or piping connections
•Master cylinder
•Brake caliper
•Disc rotor
•Brake pipe
•Brake booster
Long brake
pedal stroke
•Aeration to brake line
•Brake pedal play
•Master cylinder
•Brake caliper
•Brake pad
•Brake pipe
•Brake booster
Short brake
pedal stroke
•Brake vacuum pump
•Brake vacuum sensor
•Brake vacuum hose
•Master cylinder
•Brake caliper
•Brake pad
•Brake pipe
•Brake booster

DI-2
General Description
DIFFERENTIALS
1. General Description
A: SPECIFICATION
1. REAR DIFFERENTIAL
When replacing a rear differential assembly, select the correct one according to the following table.
NOTE:
•Using a different rear differential assembly will cause the drive train and tires to drag or emit abnormal
noise.
•For option code, refer to “ID” section. <Ref. to ID-2, IDENTIFICATION, Identification.>
2. IDENTIFICATION
Identification label positions are shown in the fol-
lowing figures. For details concerning identification,
refer to the “ID” section.
3. REAR DIFFERENTIAL GEAR OIL
Recommended gear oil:
GL–5 (75W–90)
NOTE:
Each oil manufacturer has its base oil and addi-
tives. Thus, do not mix two or more brands.
4. SERVICE DATA
Rear differential type VA2-type
Identification XX
LSD type—
Ty p e o f g e a r H y p o i d g e a r
Gear ratio (Number of gear teeth) 3.583 (43/12)
Oil capacity 0.82 (0.8 US qt, 0.7 lmp qt)
Rear differential gear oil GL-5
(1) Identification
ID-00114
(1)
(1) Item
(2) Rear differential gear oil
(3) API classification
(4) SAE viscosity No. and applicable temperature
MT-00001
(1)
(4)GL-5(3)
(2)
( C)( F)-30 -26 -15 15
9085W80W75W -90
25 30 -5 0-22-1523328659775
Drive pinion bearing preload Measure with spring measurement. (Mea-
sured from the companion flange bolt)
N (kgf, lb)
12.7 — 32.2 (1.3 — 3.28, 2.9 — 7.24)
Measure with torque wrench
N·m (kgf–m, ft–lb)0.48 — 1.22 (0.045 — 0.124, 0.32 — 0.9)
Hypoid driven gear to drive pinion backlash mm (in) 0.10 — 0.15 (0.0039 — 0.0059)

DI-3
General Description
DIFFERENTIALS
5. ADJUSTING PARTS
Drive pinion bearing preload
Measure with spring measurement. (Mea-
sured from the companion flange bolt)
N (kgf, lb)
12.7 — 32.2 (1.3 — 3.28, 2.9 — 7.24)
Measure with torque wrench
N·m (kgf–m, ft–lb)0.48 — 1.22 (0.045 — 0.124, 0.32 — 0.9)
Preload adjusting collar
Par t No. Length mm (in)
31454AA250 51.05 (2.010)
31454AA260 51.25 (2.018)
31454AA270 51.35 (2.022)
31454AA280 51.45 (2.026)
31454AA290 51.55 (2.030)
31454AA300 51.65 (2.033)
31454AA310 51.75 (2.037)
31454AA320 51.85 (2.041)
31454AA330 52.05 (2.049)
Preload adjusting washer
Par t No. Thickness mm (in)
38336AA430 1.500 (0.0591)
38336AA440 1.513 (0.0596)
38336AA450 1.525 (0.0600)
38336AA460 1.538 (0.0606)
38336AA470 1.550 (0.0610)
38336AA480 1.563 (0.0615)
38336AA490 1.575 (0.0620)
38336AA500 1.588 (0.0625)
38336AA510 1.600 (0.0630)
38336AA520 1.613 (0.0635)
38336AA530 1.625 (0.0640)
38336AA540 1.638 (0.0645)
38336AA550 1.650 (0.0650)
38336AA560 1.663 (0.0655)
38336AA570 1.675 (0.0659)
38336AA580 1.688 (0.0665)
38336AA590 1.700 (0.0669)
38336AA600 1.713 (0.0674)
38336AA610 1.725 (0.0679)
38336AA620 1.738 (0.0684)
38336AA630 1.750 (0.0689)
38336AA640 1.763 (0.0694)
38336AA650 1.775 (0.0699)
Pinion height adjusting washer
Par t No. Thickness mm (in)
32295AA350 0.150 (0.0059)
32295AA360 0.175 (0.0069)
32295AA370 0.200 (0.0079)
32295AA380 0.225 (0.0089)
32295AA390 0.250 (0.0098)
32295AA400 0.275 (0.0108)
Hypoid driven gear to drive pinion
backlashLimit mm (in) 0.10 — 0.15 (0.0039 — 0.0059)

DI-4
General Description
DIFFERENTIALS
B: COMPONENT
1. REAR DIFFERENTIAL (VA2-TYPE)
(1) Hypoid driven gear and drive pin-
ion set
(13) Lock plate (26) Clip
(14) Side bearing (27) Stay ground
(2) Pinion height adjusting washer (15) O–ring (28)

Rear differential oil temperature
switch(3) Rear bearing (16) Axle shaft holder
(4) Bearing preload adjusting collar (17) Side oil seal
(5) Bearing preload adjusting washer (18) Differential case ASSYTightening torque: N·m (kgf-m, ft-lb)
(6) Differential carrier (19) Air breather hoseT1: 25 (2.5, 18.1)
(7) Front bearing (20) Stud boltT2: 29 (3.0, 21.4)
(8) Collar (21) GasketT3: 34 (3.5, 25.3)
(9) Pilot bearing (22) Oil filler plugT4: 60 (6.1, 44.3)
(10) Front oil seal (23) Oil drain plugT5: 62 (6.3, 45.6)
(11) Companion flange (24) Rear coverT6: 191 (19.5, 141)
(12) Self–locking nut (25) Gasket

DI-5
General Description
DIFFERENTIALS
2. REAR DIFFERENTIAL MOUNTING SYSTEM
(1) Rear differential front member (5) Self–locking nutTightening torque: N·m (kgf-m, ft-lb)
(2) Rear differential member plateT1: 65 (6.6, 48)
(3) Rear differential ASSYT2: 70 (7.1, 51)
(4) Sub Frame T3: 110 (11.2, 81)

DI-6
General Description
DIFFERENTIALS
C: CAUTION
•Wear work clothing, including a cap, protective goggles and protective shoes during operation.
•Remove contamination including dirt and corrosion before removal, installation or disassembly.
•Keep the disassembled parts in order and protect them from dust and dirt.
•Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, in-
stallation, disassembly and replacement.
•Be careful not to burn yourself, because each part on the vehicle is hot after running.
•Use SUBARU genuine grease etc. or equivalent. Do not mix gear oil, grease, etc. with those of different
grades or from other manufacturers.
•Be sure to tighten fasteners including bolts and nuts to the specified torque.
•Place shop jacks or rigid racks at the specified points.
•Apply gear oil onto sliding or revolution surfaces before installation.
•Before installing the O-ring or snap ring, apply a sufficient amount of gear oil to avoid damage and defor-
mation.
•Before securing a part on a vise, place cushioning material such as wood blocks, aluminum plate, or cloth
between the part and the vise.
•Avoid damaging the mating surface of the case.
D: PREPARATION TOOL
1. SPECIAL TOOL
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
398477701 HANDLE Used for installing the front and rear bearing
cones.
398217700 ATTACHMENT SET Stand for rear differential carrier disassembly
and assembly.
498447120 INSTALLER Used for installing the front oil seal.
ST-398477701
ST-398217700
ST-498447120