Mitsubishi Pajero Pinin 1999 - Page 149

GDI ± TroubleshootingGDI ± Troubleshooting
13A-77
CHECK AT THE ENGINE-ECU TERMINALS
TERMINAL VOLTAGE CHECK CHART
Engine-ECU Connector Terminal Arrangement
Terminal
No.
Check item Check requirements (engine condition) Normal condition
1 No.1 injector
Engine: Warm up, and then depress the
accelerator
p
edal suddenly from the idle s
p
eed
Decreases slightly for
short time from 9 ± 13 V
9 No.2 injector
acce
l
era
t
or pe
d
a
l
su
dd
en
l
y
f
rom
th
e
idl
e spee
d
. s
h
or
t
ti
me
f
rom
9
±
13
V
.
24 No.3 injector
2 No.4 injector
3 No.1 ignition coil
Engine: 3,000 r/min 0.1 ± 2.0 V
13 No.2 ignition coil
12 No.3 ignition coil
4 No.4 ignition coil
6 EGR valve (C)
Ignition switch: Immediately after turning ON 5 ± 8 V (fluctuates for
a
pp
rox three seconds)
5 EGR valve (D)
approx.
th
ree secon
d
s
)
34 EGR valve (A)
32 EGR valve (B)
8 Alternator G terminal D Engine: Warm up, and then idling
D Radiator fan: not operating
D Headlamp: OFF → ON
D Stop lamp: OFF → ON
D Rear defogger switch: OFF → ON
Voltage increases by
0.2 ± 3.5 V
14 GDI ECO indicator
lam
p
Engine: idling 0 ± 3 V
l
amp
Engine: Depress the accelerator pedal suddenly
from the idle speed.
System voltage
16 Purge control solenoid
valve
D Engine coolant tem-
p
erature:
Engine: stopped System voltage
va
l
ve pera
t
ure:
80 ± 95°C
D Ignition switch:
ON
Engine: Start the
engine, and then
increase engine speed
up to 3,500 r/min.
Voltage decreases.
18 Fan controller
Radiator and condenser fans are not operating. 0 ± 0.3 V
Radiator and condenser fans are operating. 0.7 V or more
20 A/C relay D Engine: idling
D A/C switch: OFF → ON
(Compressor is operating)
System voltage, or
changes from momentari-
ly 6 V or more to 0 ± 3 V