Mil Flashes At Ignition Switch On - Suzuki Liana RH418 Supplementary Service Manual

1A-39 Engine General Information and Diagnosis:

MIL Flashes at Ignition Switch ON

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 flashing pattern check
1) Turn ignition switch ON.
Does lamp flashing pattern indicate DTC?
2 Diag. switch circuit check
Is diag. switch terminal connected to ground via service
wire?
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
4. To battery
5. Diagnosis connector
Action
ECM
G04-23
G04-10
12V
G04-6
G04-5
G04 (24P) G03 (17P)
7 6 5 4 3 2 1 6 5
12 11
16 15 14 13 12 11 10 9 8
24 23 22 21 20 19 18 17
17 16
6. MIL
7. To ignition switch
8. Main relay
9. "METER" fuse
Go to Step 2.
System is in good
condition.
C41-27 PPL/WHT
BLK
G04-15 PNK/BLK
G03-17
PNK/GRN
5V
G03-7
PPL/YEL
4 3 2 1
10 9 8 7
15 14 13
Yes
Substitute a known-
good ECM and recheck.
"PPL/WHT" circuit
shorted to ground. If
circuit is OK, substitute
a known-good ECM and
recheck.
S3RH0B1104013
5
7
DN
GND TS MON
GRN
9
6
BLK/RED
I3RH0A110012-01
No