Table of Contents
Electric Load Signal Circuit Check
Wiring Diagram
5
15
14
13
12
11
30
28
27
26
29
45
44
43
42
41
59
60
58
57
56
1. ECM
2. BCM
Troubleshooting
NOTE
• Before performed troubleshooting, be sure to read the "Precautions of ECM Circuit Inspection: in
related manual".
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors referring to "Inspection of ECM and Its Circuits: ".
Step
1
DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check DTC.
Is there DTC P1674 and/or P1678?
2
G31-1
RED
G31-3
WHT
E23
10
9
8
7
6
5
4
3
25
24
23
22
21
20
19
18
40
39 38
37
36
35
34
33
55
54 53
52
51
50
49
48
3. ABS / ESP® control module
4. PSP switch
Action
Engine General Information and Diagnosis:
WHT/RED
WHT/BLU
4
BLU/ORN
WHT/BLU
WHT/RED
RED
WHT
2
1
15
14
13
12
11
17
16
30
28
27
26
29
32 31
45
44
43
42
41
59
47 46
60
58
57
56
Go to applicable DTC
diag. flow.
1
E23-4
E23-19
12V
C37-7
3
E03-8
E03-10
E03-12
E03-6
C37
10
9
8
7
6
5
4
3
25
24
23
22
21
20
19
18
40
39 38
37
36
35
34
33
55
54 53
52
51
50
49
48
5. Electric load signal (blower motor
signal, rear defogger signal, headlight
signal and A/C switch signal), etc.
Yes
Go to Step 2.
1A-71
S5JB0E1104086
2
1
17
16
32 31
47 46
I5JB0A110104-02
No
Table of Contents
Troubleshooting
