Table of Contents
Advertisement
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
18.Diagnostic Procedure with Diagnostic Trouble Code (DTC)
A: DTC P0031 HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 1)
DTC DETECTING CONDITION:
Immediately at fault recognition
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H4DOTC)(diag)-
37, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC)(diag)-30, PROCE-
DURE, Inspection Mode.>.
WIRING DIAGRAM:
MAIN RELAY
5
3
6
4
2
1
B47
SBF-5
FRONT OXYGEN
(A/F) SENSOR
B18
A:
B134
ECM
B21
F2
EN(H4DOTC)(diag)-67
BATTERY
E
E
ENGINE (DIAGNOSTICS)
B18
1 2
3 4
B47
1
2
3
4
5
6
B21
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
36
37
38
39
40
41
42
43
44 45
46
47
48
49
50
51
52
53
54
A:
B134
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
EN-03522
Advertisement
Chapters
Table of Contents
