Subaru LEGACY 2004 Service Manual page 752

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
E: DTC B0102 BATT P/SUPPLY MALFUNCTION CONT.
DTC DETECTING CONDITION:
BATT power backup circuit is open or shorted.
TROUBLE SYMPTOM:
• Engine malfunction indicator light may be illuminates.
• Keyless entry, room light, key illumination does not operate.
• "En IU" may display in combination meter.
NOTE:
When some B0101 BATT p/supply malfunction cont. are output at the same time, all function of body inte-
grated unit may not function.
WIRING DIAGRAM:
BATTERY
MAIN SBF-11
E
A: i84
B: B280
C: B281
B:
C: R168
MICRO COMPUTER
E E
REF.TO GND-03 REF.TO GND-02
LAN(diag)-36
B52
BODY INTEGRATED UNIT
A: i84
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31 32 33 34 35
B: B280
1 2 3 4 5 6 7
8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
C: B281
1 2 3 4 5 6 7
8 9 10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28
B: B52
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22 23 24
C: R168
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20
LAN00022