1990 MITSUBISHI SPYDER Service Repair Manual

turn signal bulb open bonnet spare tire boot snow chains four wheel drive

Page 1049 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND Troubleshooting
INSPECTION PROCEDURE 11
l All points (Early, late shifting points) P r o b a b l e c a u s e
[Comment]l
Malfunction of pulse gen

Page 1050 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE> Troubleshooting
INSPECTION PROCEDURES 12
l Some points (Early, late shifting points) P r o b a b l e c a u s e
[Comment]Some shift poi

AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE> Troubleshooting
INSPECTION PROCEDURES 12
l Some points (Early, late shifting points) P r o b a b l e c a u s e
[Comment]Some shift points occurs early, late while driving.
In such cases, the cause is probably al
Malfunction of valve body
defective valve body, or it is a phenomenon related control and is not an abnormality.
Refer to Automatic Transaxle Overhaul
Does fuzzy shifting occur normally? No problem because it is a phenomenon that appears due to
Nofactors associated with control.
YesDeviations at some shift points occurs only when the ATF is cold or less].
NoYes Deviations at some shift hot or more].
Valve body disassembly, cleaning and reassembly
Pay particular attention to loosening of bolts, and to damage,
If it is considered that the damage or chipping can not be
repaired, replace the valve body assembly.
INSPECTION PROCEDURE 13
lNo fail-safe codes (Does not shift)Probable cause
[Comment]l Malfunction of overdrive switch
Shifting does not occur while driving, and no fail- safe codes are output. In such cases, the l
cause is probably a defective overdrive switch or P ark/Neutral position switch.Malfunction of Park/ Neutral position switch
l Malfunction of power supply circuit
l Malfunction of TCM
No
Yes
Check to be sure that backup power is being supplie d to
the TCM.Does overdrive operate?
Yes
SCAN TOOL Data list
l 35 Overdrive switchCheck to be sure that power is being supplied to th e TCM
SCAN TOOL Data list
l 37 Park/ Neutral position switch
I OK: TCM input signal and selector lever position
should match.
Check the overdrive switch system according to insp ection
NGOK
, procedure (Refer to
Replace the TCM. ,
OK: When overdrive switch turns from OFF to ON,
scan tool display turns from OFF to ON.
Code No. 36, 37
Park/Neutral position switch system
(Refer to
Power circuit check
lPay particular attention to open circuits in the ha rness,defective connector connections and open circuits i nfuses.lIf there is an open circuit in a fuse, the cause of
the should be located and it should be
TSB Revision

Page 1051 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE,
INSPECTION PROCEDURE 14
Poor accelerationI
[Comment]l Malfunction of clutches and brakesWhile driving, acceleration is poor even if

Page 1052 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE>
INSPECTION PROCEDURE 16. .
l Overdrive switch system Probable cause .
[Comment]l Malfunction of overdrive switch In cases such as

Page 1053 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE> Troubleshooting
INSPECTION PROCEDURE 18l A/C load signal system
[Comment]In cases such as the above, the cause is probably a defe

Page 1054 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual AUTOMATIC TRANSAXLE .
ENGINE (TURBO) AND
INSPECTION PROCEDURE
l Vehicle speed sensor systemProbable ‘cause
[Comment]l Malfunction of vehicle speed In cases such as the above, the

Page 1055 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE> Troubleshooting
SERVICE DATA REFERENCE TABLE
Item
No.Check item Check conditions condition
Fully closed
,000
Ignition: ON Gradually r

Page 1056 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE> Troubleshooting
Item
No.
27
27
28
31
32
35
37 Check item
Shift control
solenoid valve A
(SCSV-A) drive
signal and shift
control solenoid

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