Page 961 of 2453
TPM(diag)-11
Subaru Select Monitor
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
B: INSPECTION
1. COMMUNICATION FOR INITIALIZING IMPOSSIBLE
DETECTING CONDITION:
Defective harness connector
TROUBLE SYMPTOM:
Communication is impossible between the tire pressure monitoring control module and the Subaru Select
Monitor.
WIRING DIAGRAM:
TPM00007
B40
12345678
910 11 12 13 14 15 16
SBF-1
SBF-8
NO.4
B40
R211
E
E
1
10
195
IGNITIONRELAY
BATTERY
DATA LINKCONNECTOR
NO.13
TPM CONTROL MODULE
R211
123456789101112
12B97
R1
B97
1234 567891011 1213 14 15 16 17 18 19 20
Page 962 of 2453

TPM(diag)-12
Subaru Select Monitor
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK IGNITION SWITCH.Is the ignition switch ON? Go to step 2.Turn the ignition
switch to ON, and
select TPM mode
using Subaru
Select Monitor.
2CHECK BATTERY.Is the voltage more than 11 V? Go to step 3.Charge or replace
the battery.
3CHECK BATTERY TERMINAL.Is there poor contact at battery
terminal?
Repair or tighten
the battery termi-
nal.
Go to step 4.
4CHECK SUBARU SELECT MONITOR COM-
MUNICATION.
1) Turn the ignition switch to ON.
2) Using the Subaru Select Monitor, check
whether communication to other system can
be executed normally.
Are the system name and
model year displayed on Sub-
aru Select Monitor?
Go to step 8.Go to step 5.
5CHECK SUBARU SELECT MONITOR COM-
MUNICATION.
1) Turn the ignition switch to OFF.
2) Disconnect the tire pressure monitoring
control module connector.
3) Turn the ignition switch to ON.
4) Check whether communication to other
systems can be executed normally.
Are the system name and
model year displayed on Sub-
aru Select Monitor?
Replace the tire
pressure monitor-
ing control module.
TIRE PRESSURE
MONITORING
CONTROL MOD-
ULE, REMOVAL,
Tire Pressure
Monitoring Sys-
tem.>
Go to step 6.
6CHECK HARNESS CONNECTOR BETWEEN
EACH CONTROL MODULE AND DATA LINK
CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the tire pressure monitoring
control module.
3) Measure the resistance between data link
connector and chassis ground.
Connector & terminal
(B40) No. 10 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 7.Repair the har-
ness and connec-
tor between each
control module
and data link con-
nector.
7CHECK THE TIRE PRESSURE MONITORING
CONTROL MODULE OUTPUT SIGNAL.
1) Turn the ignition switch to ON.
2) Measure the voltage between tire pressure
monitoring control module and chassis ground.
Connector & terminal
(B40) No. 10 (+) — Chassis ground (–):
Is the voltage less than 1 V? Go to step 8.Repair the har-
ness and connec-
tor between each
control module
and data link con-
nector.
8CHECK HARNESS CONNECTOR BETWEEN
TIRE PRESSURE MONITORING CONTROL
MODULE AND DATA LINK CONNECTOR.
Measure the resistance between tire pressure
monitoring control module and data link con-
nector.
Connector & terminal
(R211) No. 1 — (B40) No. 10:
Is the resistance less than 0.5
Ω?
Go to step 9.Repair the har-
ness and connec-
tor between tire
pressure monitor-
ing control module
and data link con-
nector.
9CHECK TIRE PRESSURE MONITORING
CONTROL MODULE CONNECTOR.
Tu r n t h e i g n i t i o n s w i t c h t o O F F.
Is the tire pressure monitoring
control module connector
inserted in the tire pressure
monitoring control module until
it locks?
Go to step 10.Insert the tire pres-
sure monitoring
control module
connector into the
tire pressure moni-
toring control mod-
ule.
Page 963 of 2453

TPM(diag)-13
Subaru Select Monitor
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
10 CHECK POWER SUPPLY CIRCUIT.
1) Turn the ignition switch to ON. (Engine
OFF)
2) Measure the ignition power voltage
between tire pressure monitoring control mod-
ule connector and chassis ground.
Connector & terminal
(R211) No. 5 (+) — Chassis ground (–):
Is the voltage 10 — 15 V? Go to step 11.Repair open circuit
of the harness
between the tire
pressure monitor-
ing control module
and battery.
11 CHECK HARNESS CONNECTOR BETWEEN
TIRE PRESSURE MONITORING CONTROL
MODULE AND CHASSIS GROUND.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from the tire
pressure monitoring control module.
3) Measure the resistance of harness
between tire pressure monitoring control mod-
ule and chassis ground.
Connector & terminal
(R211) No. 9 — Chassis ground:
Is the resistance less than 0.5
Ω?
Go to step 12.Repair open circuit
of the harness of
the tire pressure
monitoring control
module.
12 CHECK POOR CONTACT OF CONNECTOR.Is there poor contact in tire
pressure monitoring control
module power supply, ground
circuit and data link connector?
Repair the con-
nector.
Replace the tire
pressure monitor-
ing control module.
TIRE PRESSURE
MONITORING
CONTROL MOD-
ULE, REMOVAL,
Tire Pressure
Monitoring Sys-
tem.>
Step Check Yes No
Page 964 of 2453
TPM(diag)-14
Subaru Select Monitor
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
2. WITHOUT DTC
DETECTING CONDITION:
•Defective combination meter
•Defective harness
TROUBLE SYMPTOM:
•TIRE PRESSURE WARNING LIGHT DOES NOT GO OFF
•“NO TROUBLE CODE” will be displayed on the Subaru Select Monitor.
NOTE:
When the tire pressure warning light is OFF and “NO TROUBLE CODE” is displayed on Subaru Select Mon-
itor, the system is in a normal condition.
WIRING DIAGRAM:
TPM00019
TO POWER SUPPLY CIRCUIT
FB-36 F/B FUSE NO.5(IG)
26
COMBINATIONMETERA:i10
A3
A10
TIRE INFLATION PRESSURE WARNINGLIGHT
FB-17F/B FUSE NO. 7 (B)
i102
R167
R211
FB-48F/B FUSE NO. 4 (IG)
A4
INVERTING CIRCUIT
15
5
9
TPM CONTROL MODULE
i102
1238910411 12 1314 15 16567
A:i10
12345 678910111219 20 2113 14 15 161718 22
R211
123456789101112
Page 965 of 2453
TPM(diag)-15
Subaru Select Monitor
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
Step Check Yes No
1DATA CHECK SUBARU SELECT MONITOR.
1) Select {Current Data Display & Save} in
Subaru Select Monitor.
2) Read the data of the “Tire pressure warning
light”.
Is “ON” displayed? Replace the tire
pressure monitor-
ing control module.
TIRE PRESSURE
MONITORING
CONTROL MOD-
ULE, REMOVAL,
Tire Pressure
Monitoring Sys-
tem.>
Go to step 2.
2CHECK WIRING HARNESS.
Measure the resistance between tire pressure
monitoring control module and combination
meter connector.
Connector & terminal
(i10) No. 10 — (R211) No. 2:
Is the resistance less than 0.5
Ω?
Go to step 3.Repair the har-
ness and connec-
tor between tire
pressure monitor-
ing control module
and combination
meter.
3CHECK POOR CONTACT OF CONNECTOR.Is there poor contact in the tire
pressure monitoring control
module connector and combi-
nation meter connector?
Repair the con-
nector.
Check the combi-
nation meter.
Page 966 of 2453
TPM(diag)-16
Read Diagnostic Trouble Code (DTC)
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
6. Read Diagnostic Trouble
Code (DTC)
A: OPERATION
For details about reading of DTCs, refer to “Subaru
Select Monitor”.
lect Monitor.>
Page 967 of 2453
TPM(diag)-17
Inspection Mode
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
7. Inspection Mode
A: PROCEDURE
Reproduce the malfunction occurrence condition
as possible. Drive the vehicle at a speed more than
40 km/h (25 MPH) for at least ten minutes.
Page 968 of 2453
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”.
Subaru Select Monitor.>