Mil Does Not Flash Or Just Remains On Even With Grounding Diagnosis Switch Terminal - Suzuki Liana RH418 Supplementary Service Manual

MIL Does Not Flash or Just Remains ON Even with Grounding Diagnosis Switch Terminal

Wiring Diagram
4
7
2
1
BLK/YEL
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, turns ON the malfunction indicator lamp (MIL). When the engine starts to run and
no malfunction is detected in the system, MIL goes OFF but if a malfunction was or is detected, MIL remains ON even
when the engine is running.
Troubleshooting
Step
1 MIL circuit check
1) Turn ignition switch OFF and disconnect connectors
from ECM.
Does MIL turn ON at ignition switch ON?
2 ECM connection check
1) Turn ignition switch OFF.
Is connector ("C41-27" connection) connected to ECM
properly?
3 Diag. switch terminal circuit check
1) Connect connectors to ECM.
2) Using service wire, ground "C41-27" terminal with
connectors connected to ECM.
3) Turn ignition switch ON.
Does MIL flash?
IG1
BLK/WHT
GRN
3
B
A BRN/WHT
+B
C BLK/RED
D
8
BLK/RED
C41 (31P)
9 8 7 6 5 4 3 2 1
21 20 19 18 17 16 15 14 13 12 11 10
31 30 29 28 27 26 25 24 23 22
1. "BATT" fuse
2. Main fuse box
3. "IG" fuse
Action
Engine General Information and Diagnosis:
ECM
G04-23
G04-10
12V
G04-6
G04-5
G04 (24P)
7 6 5 4 3 2 1 6
12 11
16 15 14 13 12 11 10 9 8
24 23 22 21 20 19 18 17
17 16
4. To battery 7. To ignition switch
5. Diagnosis connector 8. Main relay
6. MIL 9. "METER" fuse
"PPL/YEL" circuit
shorted to ground.
Go to Step 3.
"PPL/WHT" or "BLK"
circuit open.
C41-27 PPL/WHT
BLK
G04-15 PNK/BLK
G03-17
PNK/GRN
5V
G03-7
PPL/YEL
G03 (17P)
5 4 3 2 1
10 9 8 7
15 14 13
Yes
Go to Step 2.
Poor connector
connection.
Substitute a known-
good ECM and recheck.
1A-40
S3RH0B1104014
5
7
DN
GND TS MON
GRN
9
6
BLK/RED
I3RH0A110012-01
No