Suzuki Liana RH413, Service Manual

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1A-39 Engine General Information and Diagnosis:
Malfunction Indicator Lamp Does Not Come ON at Ignition Switch ON (But Engine at Stop)
S3RH0A1104011
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, 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.
Excessive nitrogen
oxides (NOx) emission Improper ignition timing “Ignition Timing Inspection in Section 1H”
Lead contamination of catalytic
converter Check for absence of filler neck restrictor.
Faulty EGR system (if equipped) “EGR System Inspection (Using SUZUKI Scan
Tool) in Section 1B”
Fuel pressure out of specification “Fuel Pressure Check”
Closed loop system (A/F feed back
compensation) fails (Faulty TP sensor,
Poor performance of ECT sensor or
MAP sensor) “Throttle Position (TP) Sensor On-Vehicle
Inspection in Section 1C”, “Engine Coolant
Temperature (ECT) Sensor Inspection in
Section 1C” or “Manifold Absolute Pressure
(MAP) Sensor Inspection in Section 1C”
Faulty injector(s) “Fuel Injector Circuit Check”
Faulty ECM
Condition Possible cause Correction / Reference Item
1
G04-10
G04-23
12V 5V
ECM
2
3
G04-6
+B
G04-5
B
D
A
C
BLK/WHT
BRN/WHT
BLK/RED
BLK/RED
C41 (31P) G04 (24P) G03 (17P)
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 28 27 29 30 31
5 6 1 2 3 4 5 6 7
11 12 9 10 11 13 12 14 15 16
16 17
1 2
7 8
13 14
3 4
9 10
15
17 18
8
19 20 21 22 23 24
BLK
DN
TS GND MON
PPL/WHT
C41-27
G04-15
PNK/GRN
G03-17
7
4
G03-7
PPL/YEL
5
6
9
IG1
PNK/BLK
BLK/RED
BLK/YEL
8
7
GRN
GRN
I3RH0A110012-01
1. “BATT” fuse 6. MIL
2. Main fuse box 7. To ignition switch
3. “IG” fuse 8. Main relay
4. To battery 9. “METER” fuse
5. Monitor connector (vehicle without immobilizer indicator lamp)