Subaru IMPREZA 2004 Service Manual page 126

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BE:DTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY
(RAM) ERROR
• DTC DETECTING CONDITION:
• Immediately at fault recognition
• TROUBLE SYMPTOM:
• Engine does not start.
• Engine stalls.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO)(diag)-47,
OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)(diag)-40, OPERATION,
Inspection Mode.>.
• WIRING DIAGRAM:
MAIN RELAY
4
6
5
3
2
1
B47
E
B72 B47
1
1 2
3
3 4
5
B136
1 2 3 4 5
7 8 9 10 11 12 13 14 15 16 17
18 19 20 21 22 23 24 25
No.11
A :
B134
B : B135
ECM
C : B136
D : B137
MT
B22
E3
E
F44
2
1 2 3 4
4
5 6 7 8
6
B134
1 2 3 4
6
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
26
EN(H4SO)(diag)-203
2
LHD LHD
B61 F44
IGNITION
B72
SWITCH
SBF-4
4 1
B137
B22
1 2 3 4 1 2
5 6 7 8 5
6 7 8 9 10 11
9 10 11 12
14 15 16 17 18
13 14 15 16
5 6 7 8
34 35
ENGINE (DIAGNOSTICS)
SBF-5
BATTERY
SBF-1
B135
3 4 1 2 3 4 5 6 7
8 9 10 11 12 13 14 15 16 17 18 19
12 13
19 20 20 21 22 23 24 25 26
E
27 28
EN-01444