Malfunction Indicator Lamp Remains On After Engine Starts - Suzuki Liana RH418 Supplementary Service Manual

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Malfunction Indicator Lamp Remains ON after Engine Starts

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
DTC check
1) Check DTC referring to "DTC Check".
Is there any DTC(s)?
2
DTC check
1) Start engine and recheck DTC while engine running.
Is there any DTC(s)?
3
MIL circuit check
1) Turn ignition switch to OFF position.
2) Remove combination meter referring to "Combination
Meter Removal and Installation in Section 9C in related
manual".
3) Disconnect connectors from ECM.
4) Measure resistance between "PPL/YEL" wire terminal of
combination meter connector and body ground.
Is resistance infinity?
4
MIL circuit check
1) Connect connectors to combination meter.
Does MIL turn ON at ignition switch turned ON?
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
Go to Step 2 of "Engine
and Emission Control
System Check".
Go to Step 2 of "Engine
and Emission Control
System Check".
Go to Step 4.
Replace combination
meter.
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.
Go to Step 3.
"PPL/YEL" wire circuit
shorted to ground.
Substitute a known-
good ECM and recheck.
1A-38
S3RH0B1104012
5
7
DN
GND
TS
MON
GRN
9
6
BLK/RED
I3RH0A110012-01
No

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