Subaru Legacy IV (2008 year). Service manual — part 1168
LAN(diag)-6
General Description
LAN SYSTEM (DIAGNOSTICS)
C: PREPARATION TOOL
1. SPECIAL TOOL
2. GENERAL TOOL
ILLUSTRATION
TOOL NUMBER
DESCRIPTION
REMARKS
1B022XU0
SUBARU SELECT
MONITOR III KIT
Used for troubleshooting the electrical system.
TOOL NAME
REMARKS
Circuit tester
Used for measuring resistance, voltage and current.
ST1B022XU0
LAN(diag)-7
Electrical Component Location
LAN SYSTEM (DIAGNOSTICS)
4. Electrical Component Location
A: LOCATION
(1)
Body integrated unit
(6)
Transmission control module
(TCM)
(9)
ABSCM&H/U or VDCCM&H/U
(inside engine room)
(2)
Engine control module (ECM)
(3)
Auto A/C control module
(7)
Combination meter
(10)
Odo/trip meter
(4)
Keyless entry control module
(Antenna)
(8)
Steering angle sensor
(11)
Center display
(5)
A/C control panel
LAN00194
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
LAN(diag)-8
Electrical Component Location
LAN SYSTEM (DIAGNOSTICS)
LAN00102
(1)
LAN00103
(2)
(3)
LAN00136
(4)
(5)
LAN00226
LAN00138
(6)
LAN00139
(7)
(8)
LAN00140
(9)
LAN00202
(11)
LAN(diag)-9
Control Module I/O Signal
LAN SYSTEM (DIAGNOSTICS)
5. Control Module I/O Signal
A: ELECTRICAL SPECIFICATION
Description
Connector
No.
Terminal
No.
Signal (V)
Note
Ignition switch ON
(engine OFF)
System control power
supply
B281
2
10 — 13 V
Always
Backup power supply
B280
7
10 — 13 V
When backup fuse is installed
Ignition power supply
i84
1
10 — 13 V
Ignition ON
ACC power supply
i84
24
10 — 13 V
ACC ON
Ground
i84
21
0 V
Always
B281
9
B281
8
B280
22
Key warning switch
B281
7
10 — 13 V
When ignition key inserted
STOP LIGHT SWITCH
B281
23
10 — 13 V
When brake pedal depressed
Illumination control switch
(bright switch)
i84
30
10 — 13 V (at dimmer ON)
Cancel the dimming of the clock and
audio illumination
Illumination volume (Vi1)
i84
10
4.5 — 5.5 V
Small light ON
Illumination volume (Vi2)
i84
2
0.5 — 4.5 V
Small light ON
Illumination volume (Vi3)
i84
25
0 V
Ground circuit
Illumination output
i84
5
Pulse signal
Small light ON
Front fog light SW input
B281
17
10 — 13 V
Front fog light ON
Door switch input Driver’s
seat
i84
19
Less than 1 V (10 — 13 V at OFF)
Driver’s door open (ON)
Door switch input
Passenger’s seat
i84
32
Less than 1 V (10 — 13 V at OFF)
Passenger’s door open (ON)
Door switch input Rear
RH seat
i84
18
Less than 1 V (10 — 13 V at OFF)
Rear RH door open (ON)
Door switch input Rear
LH seat
i84
31
Less than 1 V (10 — 13 V at OFF)
Rear LH door open (ON)
Door switch
Trunk/Rear gate
i84
17
Less than 1 V (10 — 13 V at OFF)
Trunk/Rear gate open (ON)
Manual switch (LOCK)
i84
15
Less than 1
:
Door lock switch ON
CS-00273
7
19
28
6
18
27
5
17
4
16
26
15
25
14
24
13 12
23
11
22
3
10
2
9
21
1
8
20
B281
side
7
20
30
6
19
29
18
28
5
17
4
16
27
15
26
14 13
25
12
24
11
23
3
10
2
9
22
1
8
21
B280
side
8
23
35
7
22
34
21
6
20
33
5
19
32
18
31
17
30
16 15
29
14
28
4
13
27
3
12
26
11
2
10
25
1
9
24
i84
side
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