1989 MITSUBISHI GALANT Service Repair Manual

AUTOMATIC TRANSAXLE - Troubleshooting23-39
1990.5, 1991 and 1992 Model (Vehicles with SOHC Engine)
P range
Transfer drive gear rpm
1Lgo loo 110 120 130 140 150 160 170
(ii :69 (:;) (;390) (;:) (35:) (i;) (ii, (it, (56) (62) (68) (75) (81)(87) (93, (99) (106)
Vehicle speed km/h (mph) TFA0482
E range
I403)
Transfer driveaear
rpm-LII
1
ii,7;(;i,(T:,(;t)(i:,(!i(ii,(ii)(56) 90(62) loo110 (68)(75) 120130 (81)(87) 140(93) 150(99) 160(106) 170
Vehicle speed km/h (mph)VA0483
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23-40AUTOMATIC TRANSAXLE - Troubleshooting
1990.5 Model (Vehicles with DOHC Engine)
P range
100I
80r;;
'60I,"'E
2.I0
40 a
z
5g20I
I2+.3(2.L) 3 q- 403)
Idle
I1,000
2,0003,000 4,000 5,0006,0007,000
Transfer drive gearrpm
11I III I11 III111II II I0
;6;(:i) (::)(;:)(::) (:;)(ii)
go
(1:) (56
)
loo110
120130140150160 170 180 190
(0)
(62)(68)(75) (81) (87) (93)(99) (106) (113)(118)
Vehicle speed km/h
(mph)
TFA0397
E range
100I 1l-I2(D.2)
III3 ~401)I
80r/I/I/III
g 6
0
I/1I
p "J~2&-+--+-3&i1I0Ia,I5
g 202*=3(2.L) 3-l
5I
I
Idle
II1,00

0
2,000
3,000 4,000 5,0006,000
14tD3)
TransferdrivegearrpmIIt1III1IIIIIII
010203040506070 8090
100110120130 140 150
160
(0) (6) (12) (19) (24) (31) (37) (43) (49) (56) (62) (68) 175) (81) (87) (93) (99)
Vehicle speed km/h (mph)
TFA0398
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AUTOMATIC TRANSAXLE - Troubleshootina23-41
1991 and 1992 Model (Vehicles with DOHC Engine)
P range
I
2"t3 (2.L) 39-4 03)
Transfer drive gear rpmI(:I2;(:;I(:;,(i:)(35:)(36;)(ii)(t:,(56) so(62) 100(68) 110(75) 120(81) 130(87) 140(93, 150(99) 160(106) 170(111) 180(118) 190
Vehicle speed km/h (mph)
TFA0488
E range
1 oo-IIIIIII !II II
II-

-
80I
Id-2 03.2)i'id 3 (D)
I I
g4 (DAI II‘I II-zIa-l
607 ’I
P,1
!/I1
E
:40alzII75L2&13 (2.L) 34(D3)=I20I
II
IIIdle1,0002,0003,0004,0005,0006,000
Transfer drive gear rpm
so loo
110
120 130 140 150 160 170
(i, (69 (:;) (7:) (;:) (%, (i;, & (% (56) (62) (68) (75)(81) (87) (93) (99) (106)
Vehicle speed km/h (mph)
TFA0489
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23-42AUTOMATIC TRANSAXLE - Troubleshooting
1991 and 1992 Model (AWD Vehicles with DOHC Engine)
P range
T$-P
.-58a,35
5
100
8060
40 20 Idle
1e- 2 (0.2)
1,000
2.000
3.000
4,000 5,000 6,000
Transfer drive gear rpm
IIIIIII1IIIIII
(i,
80 SO 100 110 120 130 140 150 160;; 1::) (:i, (:!, (& (% 6:) (49) (56) (62) (68) (75) (81) (87) (93) (99)
TFAO093
E range
I III
I II
1 11 2&3'iD)i 13+4iDJt 1
Transfer drive gear
rpmIIII -I 1IIIII
I
i,
so loo 110 120 130 140 150 160;; (:;, (?:, (;:, (::I i?, 6% (::I (56) (62) (68) (75) (81) (87) (93) (99)
Vehicle speed km/h (mph)T FA0094
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AUTOMATIC TRANSAXLE - Troubleshootina
1993 model
P range
100
80
60 40
20
Idle
1-1 2 (D.2)
c
tfI* 2(L)2-13 (2,L)3--4(b)
I II I III
1,000 2,000 3,000 4,000 5,000 6,000 7,000
Transferdrive gearrpm
1
0102030 4050 60 708090100110120 130140 150160170 180 19
0
(0)(6)(12)119)(24)(31)(37)(43)
(49)(56)(62) (68)(75)(81)(87)(93)(99) (106)(111)(118)
Vehiclespeed km/h(mph)
TFA0932
E range
31
F.-c
ti
a,
5:‘5
if
100
80
-
60 Idle
I I
II
III II1
1,0002,000
3,0004,000
5,0006,000
7,000
Transferdrivegearrpm ,
III
tIIII , , , tI(00)(6) 10(12) 20 (19) 30(24) 40 (31) 50 (37) 60
(43) 70(49) 80(56) 90(62) 100(68) 110
(75) 120(81) 130(87) 140(93) 150(99)(106)(111)(118) 160 170 180 190
Vehiclespeed km/h(mph)
TFA0933
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23-44AUTOMATIC TRANSAXLE - Troubleshooting
INSPECTION OF ELECTRONIC CONTROL SYSTEM COMPONENTS1. Wiring Based on the wiring diagram,
improper connection of
check whether the continuity and connector, damaged or
disconnected harness,
grounding of each harness IS OK. or incorrect wiring con-4
nection.
cContinuity> 4
4
Reconnect the connec-
I
Normal
Itor; repair or replace the
harness.
2. Oil-temperature
sensortemperature and check theresist-ante between the terminals 1 and2 (FWD),1and2 or 2 and 3 Damaged
or disconnected
Replace the oil-
temperature sensor
FWD (1993 model)
TFA0821
AWD (Up to 1992 model) 1
1. Low temperature side
~
2. Ground
3. High temperature side
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AlJTCMVlATlC TRANSAXLE - Troubleshooting23-45
3. Throttle-position sensor
UPS)
Damaged or discon-netted wiring
TPS terminal
SOHC Engine (1989 model)(3.5-6.5 kQ/20”C
(68°F)1I
SOHC Engine
(From 1990 model)
DOHC Engine
TFA0033 1. power
2. outpur.,
terminals 2 and 3 (SOHC Engine
1989 model) 4 and 2 (SOHC
Engine
_._ From 1990 model,
DOHC Engine) with the engine
idling after throttle-valve open-
ina warm-up.
Resistance: approx. 0.4
kQZ20”C
(,6,, , )
3. closed throttle position switch
W’D)4. ground \
Check for changes of the resist-
ance between terminals 2 and 3
(SOHC Engine
,._ 1989 model) 4
and 2 (SOHC Engine From
1990 model, DOHC Engine)
when the throttle valve is oper-
ated from the idling position to
the fully open position.
I
Changes of the resistance con-
tinuous and smooth.
Normal
4. Pulse generator
AorB
Check the resistance between
terminals 1 and 2 or 3 and 4.
Pulse generator terminals.
215-275
Q/20% (68°F)I
1-2: pulse
generator A3-4: pulse
generator B
4
Normal1
1750338 Improper adjustment
I
I
Readjust the TPS in-stallation.
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I
Replace the pulsegenerator.I

23-46AUTOMATIC TRANSAXLE - Troubleshootincl
5. Pulse generatorA or B (checking
by an oscillo-
scope)K
Connect the pulse generator and
body harness, and connect an
oscilloscope. Check with the
chassis on a dynamo or with the
front wheels raised.
Oscilloscope waveform
FWD
/VT
Noise
/Ah --L
Ar
IP
-iE
171091 AWD
AA
Noise
W
ith the selector lever at the “L”
position and the engine running at
1,000 rpm, check the voltage
waveform between terminals 1
and 2.
1
W
ith the selector lever at the
“L”position and the engine running at
1,000 rpm, check the voltage
waveform between terminals 3
and 4.
Noise
A
(6
171092+
Normal incorrect installation of
the pulse generator, or malfunction of the pulse
generator. 4
Correct the installation
condition, or replace the
pulse generator.
Replace the pulse
generator.
Incorrect installation of
the pulse generator, or
malfunction of the pulse
generator. 4
Correct the installation
condition, or replace the
pulse generator.r
Replace the pulse
generator.
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