1A-39 Engine General Information and Diagnosis:
MIL Flashes at Ignition Switch ON
S3RH0B1104013
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.
Troubleshooting
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. Diagnosis connector
Step
Action
Yes
No
1
MIL flashing pattern check
1) Turn ignition switch ON.
Does lamp flashing pattern indicate DTC?
Go to Step 2.
Substitute a known-
good ECM and recheck.
2
Diag. switch circuit check
Is diag. switch terminal connected to ground via service
wire?
System is in good
condition.
“PPL/WHT” circuit
shorted to ground. If
circuit is OK, substitute
a known-good ECM and
recheck.
Summary of Contents for Liana RH418
Page 4: ......
Page 222: ...3A 13 Drive Shaft Axle ...
Page 362: ...5A 136 Automatic Transmission Transaxle ...
Page 370: ...Prepared by 1st Ed Feb 2004 2nd Ed Jul 2006 367 ...