relay MITSUBISHI GALANT 1989 Service Service Manual

13-176FUEL SYSTEM - ::i$%%-ti=pection Of MF’
1
@ Harnesssrde connector
7FUOSO5
Measure the impressed voltage./\1A
l Power steering pressure switch
connector: Disconnected
l Engine control module connec-
tor: Connected
l Ignition switch: ON
Voltage
04
1 modul
e
J
AIR CONDITIONING SWITCH AND A/C COMPRESSOR CLUTCH RELAY
hl13YRABl
ii++----- ,L’AI:
Air conditionino1 switch -
‘A //A\‘A /,,--.l, ,+q‘\
\\Wj i EYAJ26FUO645
Air conditioning
compresso
r
clutch
relav
~-1 6FUO612
Engine control module connector
Sub fusible link
TSB Revision Air conditioning
1
@ m i”“:F$
1
Engine control module ,
I7FUO653
-
,4,
g:2
[
22
Auto compressorcontrol unit
6
2 Dual pressure
I switch 3N
3N
1
1
Air conditioningOFFengine COOlant,^N temperature
2switch
11

5
6FU145.7
OPERATION
TROUBLESHOOTING HINTS INSPECTION
Using Scan Tool Refer
to P.13-83.

FUEL SYSTEM - :::,:%?pection
Of MF’13-181
INJECTORS
Fuel
Connect01
Soienold co11
Plunger
Needle valve
Injectlop
Multiport fueliniection relay
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connector
Engine control module
Engine control module connector
lFUO642 7FUO653
I
OPERATION
TROUBLESHOOTING HINTS
Refer to
P.13-90.

FUEL SYSTEM - ~:$%:t?on Of MF’13-183
HARNESS INSPECTION
@ Multiport fuelinjection relayharness side
connector
,\---L
Ell---l0
!I?
pJ”
D
Harness
side
connector
6FU1779
@@@03Harness side
connector
1
Pmodule harness
side connector
=lFUO643
ACTUATOR INSPECTION
Refer to
P.13-92.
r I
I-
T
L
Check for continuity between injector
and
multiport fuel injection relay.
l lniector connector: Disconnected
l
tviultiport fuel injection relay con-
nector: Disconnected
NOTE
Touch the circuit tester probes to both
ends of the harness. Repair the
harnessCm
- 0@3,
Check for an open circuit, or a short
circuit to ground between the engine
control module and the injector.
l Engine control module connec-
tor: Disconnected
l Injector connector: Disconnected
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I

On-Vehicle Inspection of MFI
FUEL SYSTEM (SOHC-16 VALVE> - Components13-189
EVAPORATIVE EMISSION PURGE SOLENOID
IEvaporative emission/
Multipomfuel
injection relay
Evaporative emission
purge solenoid
-cofxiectorVI@ Harness side connector
p
Q I:
1
@ Eauioment side
Engine !!!I module ki
J
5ELl205)
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Engine control module connector
OPERATION
INSPECTION
Using Scan Tool
Refer to
P.13-99.

13-190
On-Vehicle Inspection of MFI
FUEL SYSTEM
- Components
HARNESS INSPECTION
@ Multiport
connector ~
Harness sideCheck for continuity between evapo-
connector
~
rative emission purge solenoid andmultiport fuel injection relay.
l Evaporative emission purge sole- noid connector: Disconnected
I ~
l Multiport fuel injection relay con-
nector: Disconnected
1; NOT
E
Touch the circuit tester probes to
9FUOO39 !both ends of the harness.
Check for an open circuit, or a
short-
circuit to ground, between the evapo-
rative emission purge solenoid and
the engine control module.
Harness srdeconnector
l Evaporative emission purge sole-
noid connector: Disconnected
l Engine control module connec-
tor: Disconnected,I Repair th
e
* harness
@m-El)
I
ACTUATOR INSPECTION
Refer to GROUP 17
- Evaporative Emission Control System.
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FUEL SYSTEM - %i,,:::ti-pection Of MF’13-191
EGR SOLENOID
I
Engine
control module connector
Multiport fuel
injection relay
EGR solenoid
connector
\/ ‘
“
2
A6Engine
control
module
r-
w
7FlJOU3OlWIS7
OPERATION
TROUBLESHOOTING HINTS
INSPECTION
Using Scan Tool
Refer to P.13-101.
HARNESS INSPECTION
_11
I IIF5
connector
@I Harness sideconnector ul[ J
9FUOO53
Check for continuity between EGR
solenoid and
multiport fuel injection-!relay.
l EGR solenoid connector: Discon-
nettedw
l Multiport fuel injection relay
con-I
nectar:
Disconnected
NOTE
Touch the circuit tester probes to
both ends of the harness. 1
MI,
1 TSB Revision

On-Vehicle Inspection of MFI13-192FUEL SYSTEM (SOHC-16 VALVE> - Components
connector
Engine control
module
harness
Check for an open circuit, or a short-
circuit to ground, between the EGR
solenoid and the engine control mod-
ule.
l EGR solenoid connector: Discon- nected
l Engine control module connec- tor: Disconnected
0OK+ASTOP
,
wsL
Repair the
harness
mzl- El)
ACTUATOR INSPECTION
Refer to GROUP 17
- Exhaust Gas Recirculation (EGR) System.
FUEL PRESSURE TEST
Refer to
P.13-102.
INSPECTION OF ENGINE CONTROL MODUL
E
TERMINAL VOLTAGE
NOTE
Make the voltage measurement between terminal No.26
(ground terminal) and each terminal.
Refer to
P.13-105.
TERMINAL VOLTAGE CHECK CHART
Terminal arrangement of engine control module connector
7FUQ653NOTEB+: Battery positive voltage
Terminal ~
No
.
Check Item ~
Check Condition (Engine Condition)/ Standard
/ value
60j Backup power supply i Ignrtron: OFF
I-
-
,
12/ Power supplyI Ignrtion: ON
25
j
B+
B+
8
Multiport fuellgnrtion switch: ON ~
B+injection relay~ (Fuel pump)Enqine: Idle speedo-3v
61 ’Sensor impressed
Ignition switch: ONi 4.5-5.5v
voltage
70Volume air flow Engine: Idle speed/ 2.2-3.2Vj sensor
IEngine rpm: 2,000 rpm
1 TSB Revision

FUEL SYSTEM - i%$-%~pection Of MF’13-193
TerminaNo.
19
52
-rII
i
t
c
65
L
63
64t
I:
I
Check Item :Check Condition (Engrne Condrtron)
Volume air flowj Engine: Idle speedsensor reset signal
1
Engine rpm: 3,000 rpm
Intake air tempera-1Ignition switch: ON When Intake atr temperature IS 0°C (32°F)ture sensor
When intake air temperature IS 20°C (68°F)
i When intake air temperature is 40°C (104°F)
When intake air temperature is 80°C (176°F)
lgnltlon switch: ON’ When altitude is 0 m
When altitude is 1,200 m (3,937 ft.)
Ignition switch: ON
i When engine coolant temperature IS 0°C (32°F)
When engine coolant temperature is 20°C (68°F)
When engine coolant temperature is 40°C (104°F)
Barometnc pressuresensor
Engine coolant
temperature sensor
Throttle positionsensor
67
68
69
51
115
1
1
Ic22
Closed throttle
position switch
Camshaft position
sensor
Crankshaft position
sensor
Ignition switch-ST
Park/neutral position
switch
Vehicle speed sensor
Power steering
pressure switch
Air conditioning
switch
-I
I When engine coolant temperature is 80°C (176°F)
‘I
) 0.3-0.9v
Ignition switch: ON Set throttle valve to idle position.
0.3-0.6V
iFully open throttle valve.1 4.5-5.5v
Ignition switch: ON
Set throttle valve to idle position.o-1v
’ Slightly open throttle valve4V or more
Engine: Cranking0.2-3.OV
Engine: Idle speed
Engine: Cranking0.2-3.OV
Engine: Idle speed
Engine: Cranking8V or more
Ignition switch: ON
( SetselectorlevertoPorN.o-3v
i Set selector lever to D. 2, L or R.8-14V
Ignition switch: ONi 04d5v
Move the vehicle slowly forward.(Changesrepeatedly)
Engine. Idling after warmrng upSteering wheel idle stateB+
During steering wheel operationo-3v
Engine: Idle speed
’ Turn the air conditioning switch OFFo-3vI
’ Turn the air conditioning switch ON.1 B+(Air conditioning compressor is operating)!
Engine: Idle speed1 B+or
Air conditioning switch: OFF-ONI temporarily
Turn the conditioning switch ON. (Air conditioning compressor is operat\
ing) 1
6V or morej 1
1 o-3v
/ Standard
value
/ o-1v
1 6-9V
1 3.2-3.8V
: 2.3-2.9v
1.5-2.1V
i 0.4-I .ov
j 3.7-4.3v
/ 3.2-3.8V
, 3.2-3.8V
1, 2.3-2.9v
1.3-l .9vI
Air conditioningcompressor clutchrelay
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13-196FUEL SYSTEM - General Information
FUEL SYSTEM
GENERAL INFORMATION
MFI SYSTEM DIAGRAMMl
3BA-A

*1 Injector*2 Ignition coil
(Low-
voltage power-drs-
tribution type)
*3 Idle air control motork4 Evaporative emis-
sion purge solenoid l Fuel pump control (Multiport
fuel injec-
tion relay)
l Air conditioning
corm- pressor clutch relay
* Ignition timing control) On-board diagnostic
output
) Check engine/mal-
function indicator
lamp
Engine coolant tem-
perature sensor
l Ignition swatch STl Power supplyl Vehicle-speed sen-sor
. Arr conditioning
switch
l Power steering
pressure
swatch
‘I Heated oxygen sensor ‘10*2
Volume air flow sensor *3

Intake air temperaturesensor‘4 Throttle position sensor *5
Closed throttle position
swrtch *6
Camshaft position sen-
sor “7
Crankshaft position sen-
sor“8 Barometrrc pressure
sensor
‘9 Engine coolant temper-ature switch (for cooler
cut-off)
Evaporatrveemrssion canister
Evaporatrveemlsslo”Idle airThronlecontrol motorl 3 Fast idle air valveI (Wax tvoe)position\Volume air/sensor3flow sensorf \//n,r\l 2 '8
- lnnhnn toll III1 II
II-“,--?% 11 11 EGR,/alveI.l”lll)i
Fuel injectorII
II
Vacuum hose color
G: Green
L: Light blue
I?: RedY: Yellow5: Black
Heated oxygen sensor Thermal
vacuu
a uCatalytrc converter
HMO163PCV: Positive CrankcaseVentilation
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‘1 Heated oxygen sensor‘2 Volume air flow sensor
“3 intake air temperature
sensor‘4 Throttle position sensor‘5 Closed throttle position
switch
‘6 Camshaft Dosltion sen-
so
r
*7 Crankshaft position sen-sor‘8
Barometnc
pressure
sensor
‘9 Engine coolant temper-
ature switch (for cooler
cut-off)
‘I 0 Knock sensor ‘11
Engien coolant tem-
perature sensor
l Ignition switch STl Power supplyl Vehicle-speed sen-
sor
l Air conditioningswitchl Power steeringpressure switch
Volume airflow sensor \
Idle air
FUEL SYSTEM - General Information13-197
* 1 Injector*2 Ignition coil (Low-
voltage power-dis-
tribution type)
*3 Idle air control motel*4 Evaporative emis-sion purge solenoid
l Fuel pump control (Multiport
fuel injec-
tion relay)
l Air conditioning com-pressor clutch relay
l Ignition timing control
l On-board diagnosticoutputl Check engine/mal-
function indicator
lamp
Evaporativeemissioncanister
Q
ThrottlepOSltlOnSt?“SW
\
control motor
r
Fast Idle air valveWax tape)
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e , lylllll”rl
COll
Fuel- wmpEGR valve
'1 A
Heated oxygen sensor /$$y/.\‘“I
w ‘11 Englen coolant temp. sensorF ‘9 Engine coolant temp. switch
Thermal vacuum valve
Crankshaft
position
sensor
‘7 positlon ICrankshaft
sensor
I
Camshaft‘6 positionsensor
Vacuum hose color G: Green
L: Light blueR: RedY: YellowB: Black
Catalytic convener
PCV: Posmve CrankcaseVentllatlon6EMO362