1A-57 Engine General Information and Diagnosis:
Malfunction Indicator Lamp Does Not Come ON with Ignition Switch ON and Engine Stop (but
Engine Can Be Started)
S5JB0A1104011
Wiring Diagram
Circuit Description
When the ignition switch is turned ON, ECM causes the main relay to turn ON (close the contact point). Then, ECM
being supplied with the main power, transmits indication ON signal of malfunction indicator lamp (MIL) to combination
meter in order to turn MIL ON. And then, combination meter turns MIL ON. When the engine starts to run and no
malfunction is detected in the system, ECM transmits MIL indication OFF signal to combination meter in order to turn
MIL OFF. And then, combination meter turns MIL OFF, but if a malfunction was or is detected, MIL remains ON even
when the engine is running.
BLK/WHT
BLU/BLK
BLU/BLK
BLU/BLK
WHT/GRN
BLK/RED
BLK/RED
BLK/RED
BLK/YEL
BLU
12V
5V
2
3
8
65
7
WHT/RED
WHT/BLU
WHT/RED
WHT/BLU
E23-29
E23-4
E23-1
E23-60
E23-19
E23-16
10
12
11
[A]
E23 C37
34
1819
5671011
1720
47 46495051
2122
52
1625
9
24
14
29
5557 54 53
59
60 58
2
262728
15
30
56 48
32 31343536374042 39 38
44
45 43 41 33
11213
23
834
1819
5671011
1720
47 46495051
2122
52
1625
9
24
14
29
5557 54 53
59
60 58
2
262728
15
30
56 48
32 31343536374042 39 38
44
45 43 41 33
11213
23
8
[B]
1
PPL/RED
C37-15
C37-29
C37-48
BLK/ORN
C37-58
C37-30
BLK/ORN
BLK/YEL
BLK/YEL
BLK/YEL
12345678910
1117 16151413122221201918
G28
4
WHT
RED
WHT
RED
BLK
G28-15
9
13
12
12 12
G28-13
I5JB0A110025-02
[A]: ECM connector (viewed from harness side) 5. “IG COIL” fuse 11. “IGN” fuse
[B]: Combination meter connector (viewed from harness side) 6. “METER” fuse 12. CAN communication line
1. Fuse box No.2 7. ECM 13. To other control module (TCM (for A/
T model), BCM, 4WD control module
(for J20 engine) and keyless start
control module (if equipped))
2. Ignition switch 8. Junction block
3. Main relay 9. ABS hydraulic unit / control
module assembly
4. Malfunction indicator lamp in combination meter 10. “FI” fuse
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