Subaru Legacy 2005 Service Manual page 4135

3. General Description
A: CAUTION
1. SUPPLEMENTAL RESTRAINT SYSTEM
"AIRBAG"
Airbag system wiring harness is routed near the
body integrated module and twisted pair line.
CAUTION:
• All airbag system wiring harness and con-
nectors are colored yellow. Do not use the elec-
trical test equipment on these circuits.
• Be careful not to damage the airbag system
wiring harness when servicing the body inte-
grated module and LAN system.
2. LAN SYSTEM
• Bus line of LAN system is twisted pair line. Be
careful not to bypass or partly unbind the twisted
pair line.
• Do not make clearance between bus lines (CAN
High, CAN Low).
• Difference of bus line length should be within 10
cm (3.94 in).
• Fray near the connector should be within 8 cm
(3.14 in).
(A) Bypass wire connection
• If the characteristic of twisted pair line is
changed, it may extremely weaken against the
noise.
General Description
(A)
LAN00081
LAN(diag)-5
LAN SYSTEM (DIAGNOSTICS)
• When repairing the harness, connect the wires
using soldering and protect it with insulating tape,
etc.
(A) Soldering and protection with insulating tape
B: INSPECTION
Before performing diagnostics, check the following
items which might affect body integrated module
malfunctions.
1) Measure the battery voltage and check electro-
lyte.
Standard voltage: 12 V or more
Specific gravity: 1.260 or more
2) Check the fuse condition.
Make sure that ampere of the fuse is setting value,
and it is not blown out.
3) Check the connecting condition of harness and
harness connector.
4) Confirm settings of body integrated module are
corresponded to vehicle equipment. <Ref. to
LAN(diag)-18, REGISTRATION BODY INTE-
GRATED MODULE (EQUIPMENT SETTING), OP-
ERATION, Subaru Select Monitor.>
5) Confirm setting are corresponded to vehicle
equipment by function setting (ECM customizing)
of body integrated module. <Ref. to LAN(diag)-20,
FREEZE FRAME DATA, OPERATION, Subaru
Select Monitor.>
6) Confirm "Factory initial setting" of body integrat-
ed module registrations is "Market".
7) Confirm key illumination does not blink with igni-
tion switch turned to ON.
(A)
LAN00080