Subaru Legacy IV (2008 year). Service manual — part 858
TPM(diag)-18
Clear Memory Mode
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
8. Clear Memory Mode
A: OPERATION
For details concerning DTC clear operation, refer to
“Subaru Select Monitor”. <Ref. to TPM(diag)-8,
Subaru Select Monitor.>
TPM(diag)-19
Tire Pressure Warning Light / Trouble Indicator Light Illumination Pattern
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
9. Tire Pressure Warning Light / Trouble Indicator Light Illumination
Pattern
A: INSPECTION
(1)
Ignition switch
(8)
Tire pressure warning light
(14)
Tire pressure warning light
(2)
OFF
(9)
Light OFF
(15)
Light OFF
(3)
ON
(10)
Light ON
(16)
Blink
(4)
Start
(11)
System status
(17)
1 second
(5)
Tire pressure
(12)
Normal operation
(18)
Blinks 25 times
(6)
Meet the specification
(13)
Malfunction
(19)
2 seconds
(7)
Under the specification (refer to
the following table.)
TPM00043
(2)
(3)
(4)
(3)
(5)
(6)
(7)
(8)
(9)
(10)
(2)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(19)
(10)
(9)
(19)
(1)
(18)
TPM(diag)-20
Tire Pressure Warning Light / Trouble Indicator Light Illumination Pattern
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
1) When the tire pressure warning light does not illuminate in accordance with this illumination pattern, there
must be an electrical malfunction.
2) When tire pressure warning light does not go off, check the tire pressure monitoring control module/warn-
ing light circuit and the combination meter circuit. <Ref. to TPM(diag)-22, TIRE PRESSURE WARNING
LIGHT DOES NOT COME OFF, Tire Pressure Warning Light / Trouble Indicator Light Illumination Pattern.>
NOTE:
If the problem is fixed while driving at approximately 40 km/h (25 MPH) after the tire pressure warning light
blinks/lights, the warning light goes out and the tire pressure monitor system operates normally. (If there is
a decrease in tire pressure, or a malfunction of the system, the malfunction history is displayed.)
Tire size
Air pressure
P225/60 R16 97H
180 kPa (1.8 kgf/cm
2
, 26 psi), or less
P225/55 R17 95V
P205/55 R16 89H
186 kPa (1.86 kgf/cm
2
, 27 psi) or less
P205/50 R17 88V
215/45 R18 89Y
P215/45 R18 89W
215/45 R17 91W
196 kPa (1.96 kgf/cm
2
, 28 psi) or less
TPM(diag)-21
Tire Pressure Warning Light / Trouble Indicator Light Illumination Pattern
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
B: TIRE PRESSURE WARNING LIGHT DOES NOT COME ON
DETECTING CONDITION:
Defective combination meter
TROUBLE SYMPTOM:
When the ignition switch is turned to ON (engine OFF), the tire pressure warning light does not come on (for
approximately 2 seconds).
WIRING DIAGRAM:
Step
Check
Yes
No
1
CHECK DIAGNOSTIC TROUBLE CODE
(DTC).
Connect the Subaru Select Monitor, and read
the Diagnostic Trouble Code. <Ref. to
TPM(diag)-8, READ DIAGNOSTIC TROUBLE
CODE (DTC), OPERATION, Subaru Select
Monitor.>
Is diagnostics code (DTC) dis-
played?
Perform the diag-
nosis according to
DTC. <Ref. to
TPM(diag)-26, List
of Diagnostic Trou-
ble Code (DTC).>
Replace the com-
bination meter.
<Ref. to IDI-22,
REMOVAL, Com-
bination Meter.>
FB-36
F/B FUSE NO.5
(IG)
2
6
A:
i10
B:
i11
A3
B6
FB-17
F/B FUSE NO. 7
(B)
i102
R167
R211
FB-48
F/B FUSE NO. 4
(IG)
16
5
9
1 2 3
4 5 6
7 8 9 10 11 12 13 14
B:
i11
i102
1 2 3
8 9 10
4
11 12 13 14 15 16
5 6 7
A:
i10
1 2 3 4 5
6 7 8 9 10
11 12
19 20 21
13 14 15 16
17 18
22
R211
1 2 3 4 5 6
7 8 9 10 11 12
TPM00042
TO POWER SUPPLY CIRCUIT
COMBINATION
METER
TIRE INFLATION
PRESSURE
WARNING LIGHT
DRIVE CIRCUIT
MICRO COMPUTER
TPM CONTROL MODULE
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