Subaru 2009 IMPREZA Service Manual page 3378

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
E: DTC B1104 ACC POWER FAILURE
DTC DETECTING CONDITION:
Voltage malfunction caused by poor contact of ACC power supply circuits
TROUBLE SYMPTOM:
Does not exist.
NOTE:
B1104 may output when the ignition switch turns to ACC with the weak battery condition.
WIRING DIAGRAM:
BATTERY
MAIN SBF
E
JOINT GROUND
CONNECTOR
:
* 1
TERMINAL No.
OPTIONAL ARRANGEMENT
SBF-6
A: i84
B: B280
BODY INTEGRATED UNIT
C: B281
D: B279
i97
E E
LAN(diag)-45
IGNITION SWITCH
OFF ACC ON
3 B
5 ACC
1 IG
B72
FUSE & RELAY BOX
LAN SYSTEM (DIAGNOSTICS)
B72
1 2 3
4 5 6
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
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
D: B279
1 2 3 4 5 6 7
8 9 10 11 12 13 14 15 16 17 18 19 20
1 2 22 23 24 25 26 27 28 29 0 3
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
LAN00407