Subaru Legacy IV (2008 year). Service manual — part 856

TPM(diag)-10

Subaru Select Monitor

TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)

4. REGISTER TRANSMITTER ID

Perform the procedures below to register the trans-
mitter.
• Transmitter replaced.
• Replaced the tire pressure monitoring control
module.

NOTE:
• If registration of the transmitter ID is not possible
after 2 attempts, replace the tire pressure monitor-
ing control module. <Ref. to WT-11, TIRE PRES-
SURE MONITORING CONTROL MODULE,
REMOVAL, Tire Pressure Monitoring System.>
<Ref. to WT-12, TIRE PRESSURE MONITORING
CONTROL MODULE, INSTALLATION, Tire Pres-
sure Monitoring System.>
• During the registration, turn the ignition switch to
OFF and end the Subaru Select Monitor. Or if the
registration is not performed for 5 minutes or more,
the registration mode is cancelled.
• When rotating tires, there is no affect on the per-
formance or functions of the tire pressure monitor-
ing control module even if the transmitter (ID) is not
registered, however, the tire position displayed on
the Subaru Select Monitor will be incorrect.
1) Adjust all tire pressures to the specifications.
2) Connect Subaru Select Monitor and select the
{2. Each System Check} on the «Main Menu».
3) On the «System Selection Menu» display, select
the {Tire pressure monitor}.
4) After the {Tire pressure monitor} is displayed,
select [OK].
5) On the «Tire pressure monitor diagnosis» dis-
play, select the {Transmitter ID regist confirm}.
6) {ID registration mode When execute Registered
ID is deleted. Continue?} is displayed, select [OK].

7) Touch the transmitter registration tool to the side
wall area near the air valve on the front left tire, and
press the switch. The transmitter ID is sent to the
tire pressure monitoring control module. (At that
time, the tire pressure warning light blinks to con-
firm that the registration has started.)

NOTE:
• The registration order of transmitter ID is not
specified.
• The transmitter registration tool is used by touch-
ing the side wall area near the transmitter.
• When registration of each tire is completed, the
hazard light will blink and {ID registration complet-
ed} is displayed on the Select Monitor screen.
• If registration procedure stop in the halfway
(turning ignition switch to OFF, wrong registration
order, etc), proceed from step 5)
8) When ID registration is completed, the tire pres-
sure warning light remains lit for approximately 2
seconds, to end the registration. Switch to the
screen displaying the transmitter ID on the Subaru
Select Monitor display. <Ref. to TPM(diag)-10,
DISPLAY TRANSMITTER (ID)., OPERATION,
Subaru Select Monitor.>
9) Check the transmitter ID that was registered,
then perform a driving test. <Ref. to TPM(diag)-17,
PROCEDURE, Inspection Mode.>

5. DISPLAY TRANSMITTER (ID)

1) On the «Main Menu» display, select the {Each
System Check}.
2) On the «System Selection Menu» display, select
the {Tire pressure monitor}.
3) After the {Tire pressure monitor} is displayed,
select [OK].
4) On the «Tire pressure monitor diagnosis» dis-
play, select the {Transmitter ID regist confirm}.
5) Select the {Transmitter ID data monitor} and
then select [OK] to display the transmitter ID.

(1) Air valve (transmitter)

(2) Transmitter registration tool

(1)

(2)

TPM00006

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:

B40

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16

SBF-1

SBF-8

No.4

B40

R211

E

16

7

1

9

5

IGNITION
RELAY

BATTERY

DATA LINK
CONNECTOR

No.13

TPM CONTROL MODULE

R211

1 2 3 4 5 6
7 8 9 10 11 12

12

B97

R1

B97

1 2 3 4

5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20

TPM00024

TPM(diag)-12

Subaru Select Monitor

TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)

Step

Check

Yes

No

1

CHECK 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.

2

CHECK BATTERY.

Is the voltage 11 V or more?

Go to step 3.

Charge or replace
the battery.

3

CHECK BATTERY TERMINAL.

Is there poor contact at battery
terminal?

Repair or tighten
the battery termi-
nal.

Go to step 4.

4

CHECK SUBARU SELECT MONITOR COM-
MUNICATION.
1) Turn the ignition switch to ON.
2) Using the Subaru Select Monitor, check
whether communication to other systems can
be executed normally.

Is the system name displayed
on the Subaru Select Monitor?

Go to step 8.

Go to step 5.

5

CHECK 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 sys-
tems can be executed normally.

Is the system name displayed
on the Subaru Select Monitor?

Replace the tire
pressure monitor-
ing control module.
<Ref. to WT-11,
TIRE PRESSURE
MONITORING
CONTROL MOD-
ULE, REMOVAL,
Tire Pressure
Monitoring Sys-
tem.>

Go to step 6.

6

CHECK 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. 7 — Chassis ground:

Is the resistance 1 M

: or

more?

Go to step 7.

Repair the harness
and connector
between each con-
trol module and
data link connec-
tor.

7

CHECK 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. 7 (+) — Chassis ground (–):

Is the voltage less than 1 V?

Go to step 8.

Repair the harness
and connector
between each con-
trol module and
data link connec-
tor.

8

CHECK 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. 7:

Is the resistance less than 0.5

:? Go to step 9.

Repair the harness
and connector
between tire pres-
sure monitoring
control module and
data link connec-
tor.

9

CHECK TIRE PRESSURE MONITORING
CONTROL MODULE CONNECTOR.
Turn the ignition switch to OFF.

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.

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 module con-
nector 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 pres-
sure monitoring control module.
3) Measure the resistance of harness between
tire pressure monitoring control module and
chassis ground.

Connector & terminal

(R211) No. 9 — Chassis ground:

Is the resistance less than 0.5

:? 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 connec-
tor.

Replace the tire
pressure monitor-
ing control module.
<Ref. to WT-11,
TIRE PRESSURE
MONITORING
CONTROL MOD-
ULE, REMOVAL,
Tire Pressure
Monitoring Sys-
tem.>

Step

Check

Yes

No