Subaru Legacy 2004 Service Manual page 539

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
O: DTC P0130 O2 SENSOR CIRCUIT (BANK 1 SENSOR 1)
DTC DETECTING CONDITION:
Immediately at fault recognition
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO 2.0)(diag)-
38, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.0)(diag)-32, OPER-
ATION, Inspection Mode.>.
WIRING DIAGRAM:
MAIN RELAY
5
3
4
B21
6
2
1
B47
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
SBF-6
50
E2
FRONT OXYGEN
(A/F) SENSOR
E24
B135 B1
B:
ECM
B136
C:
E
EN(H4SO 2.0)(diag)-107
BATTERY
E2
B21
E
B21
E2
Check
Is any other DTC displayed?
ENGINE (DIAGNOSTICS)
B47
1 2
3 4
5 6
E24
2 1
4 3
B21
1 2 3 4 5 6 7 8
12 13 14 15 16 17 18 19
23 24 25 26 27 28 29 30 31 32 33
34 35 36 37 38
42 43 44 45
48 49 50 51 52
B: B135
1 2 3 4
8 9 10 11 12 13 14 15
20 21 22 23 24
28 29 30 31 32 33
E
C: B136
1 2 3 4
7 8 9 10 11 12 13 14 15
17 18 19 20 21 22 23
28 29 30 31
Yes
Check DTC using Go to step 2.
"List of Diagnostic
Trouble Code
(DTC)". <Ref. to
EN(H4SO
2.0)(diag)-66, List
of Diagnostic Trou-
ble Code (DTC).>
9 10 11
20 21 22
39 40 41
46 47
53 54
5 6 7
16 17 18 19
25 26 27
34 35
5 6
16
24 25 26 27
32 33 34 35
EN-02433
No