fuse MITSUBISHI SPYDER 1990 Service User Guide

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
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REAR AXLE Drive __
B O O T BA N D
( L A R G E )
INSTALLATION
Set the T.J. boot bands at the specified distance i n order
to adjust the amount of air inside the T.J.
and then
tighten the, T.J. boot bands securely.
Standard value (A): 79
3
84 3 mm in.)
Caution
Always check the identification numbers on the
band levers. Never confuse the bands.
Items Identification numberI
T.J. boot band (large)I
T.J. boot band (small)
INSPECTION
lCheck the drive Shaft for corrosion.
l drive shaft part for wear or damage.
lCheck for entry of water and/or foreign
l Check the spider assembly
corrosion.
lCheck the groove inside T.J. case for
lCheck the boots for deterioration, or
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INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS .
INSPECTION PROCEDURE , .,, , __ ,
Communication with scan not possible. , .
(Communication with all is not Probablecause
[Comment]The reason is probably a defect in supply system (including ground) forl .
the diagnostic line.. . . .
Refer to GROUP -Troubleshooting.
.I N S P E C T I O N P R O C E D U R E 2
(Communication with ABS only is not
Communication with scan tool is ,
l Blown fuseWhen the s&an tool is not possible, the cause is probab ly anopen circuit in the ABS-ECU power circuit or an ope n circuit in the diagnostic outputl Malfunction of connector
l Malfunction of ABS-ECU
circuit.. . . .
NGMeasure at data link connector Repairand ABS-ECU connector -1.lDisconnect the connector and mea-sure at the side.
Continuity between the following
terminals.OK: Continuity
ABS-ECU side to Data link
connector side C h e c k t h e between the
ABS-ECU and link connector. . . necessary.
OK.NG NGMeasure at ABS-ECU connector RepairlDisconnect the connector and mea-* and sure at the harness side.
l Ignition switch ONOK
l Voltage between terminal 18 and ground. Check trouble symptomsOK: Battery positive voltage
OKCheck the harness between fuse No.
.13 the junction block andABS-ECU. Repair, if necessary. .
Measure at ABS-ECU connector . . lDisconnect the connector and mea-sure at the harness side.l and body ground..OK: Continuity
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ABS Troubleshooting , ,
INSPECTION PROCEDURE 3When ignition key is turned to “ON” (engine stopped ),
ABS warning light does not illuminate
[Comment]When power is supplied to the ABS-ECU, the valve relay changes from to ON by the initial check, and thus even if there is a problem with the circuit between
ABS light and ABS-ECU, the light will illuminate once when the valve relay
is OFF.
Accordingly, the cause of the light not illuminatin g is probably an open circuit in the
light power circuit, a blown light bulb, or an open circuit in both the circuit between
the ABS
light and the ABS-ECU and the circuit between the ABS light and the ABS valve relay.When other lights also do not illuminate, the cause is probably a blown fuse.
Measure at combination meter connector
l Disconnect the connector and mea-
sure at the harness side.
l Ignition Switch ON
lVoltage between terminal 10 and body
OK Battery positive voltage Check trouble symptoms
Measure at combination meter connector
sure at the combination meter side.
l Continuitv between terminals
R e p l a c e t h e
OK Continuity ,
OK
Check the harnesses between the ABS valve relay and the combination meter,
a n d b e t w e e n t h e A B S - E C U a n d
combination meter (common section).
if necessary.
INSPECTION PROCEDURE 4
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Even after the engine is started, the ABS Warning l ight ,remains illuminated.. .
[Comment]There is probably a short in the ABS warning light illumination circuit.l Malfunction of combination meterl Malfunction of ABS valve relayl Malfunction of ABS-ECU. ,
NOTE
This trouble symptom is limited to cases where comm unication with the scan tool is’
is normal) and the diagnostic trouble code is a normal diagnostic trouble code..YESDisconnect the ABS-ECU connector Does the light remain illuminated?
NO
Short circuit inside the combination or in the harnessbetween the meter and
Replace the ABS-ECU.

ABS
Caution
1.If movements are made when driving at speed, or when driving on road
with low frictional resistance, or when passing over bumps, the ABS may
sudden braking is not being applied. of this, when getting
2.
check if the problem occurred while driving under s uch conditions
During ABS operation changes in the feeling of the brake pedal occur or
may not be able to be depressed). Such changes are due to in hydraulic
pressure inside the brake line to prevent, the whee ls from locking,
I N S P E C T I O N P R O C E D U R E F O R T R O U B L E S Y M P T O M S ,
INSPECTION PROCEDURE 1
Communication with scan tool is not possible. Probable cause
(Communication with all systems is not possible.)
[Comment]l Malfunction of connector
The reason is probably a defect in the power supply system (including ground) for
the diagnostic line. l
Malfunction harness
Refer to GROUP Troubleshooting
INSPECTION PROCEDURE 2
Communication with scan tool is not possible.
(Communication with ABS only is not Probable cause
,
[Comment]l Blown fuse
When communication with the scan tool is not possib le, the cause is probably an
l Malfunction of wiring harness or connector
open circuit in the ABS-ECU power circuit or an ope n circuit in the diagnostic output
circuit.l Malfunction of ABS power relay
l Malfunction of ABS-ECU
,
l connector and
Continuity between the following
ABS-ECU
to Data link
connector side
23-8
OKNGMeasure at ABS-ECU connector lDisconnect the connector and mea-sure at the harness side.
N G Repair
l Ignition switch ON
l Voltage between terminal 18 and
bodv around. Check trouble symptom.
I positive voltage
OKCheck the harness between No
NG
Measure at ABS-ECU connector
lDisconnect the connector and mea-sure at the harness side.lContinuity between terminals and body ground.OK:
Repair
l
OKNG Repair
OK
Check trouble symptom. Replace the ABS-ECU.
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ABS Troubleshooting
INSPECTION PROCEDURE 3
ignition key is turned to “ON’? (engine stopped),ProbableABS warning light does not illuminate
[Comment]When power is supplied to the ABS-ECU, the valve relay changes from to OFF ON by the initial check, and thus even if there is a problem with the circuit betweenABS warning light and ABS-ECU, the light will illum inate once when the valve relayis OFF.Accordingly, the cause of the light not illuminating is probably an open circuit in the
light power circuit, a blown light bulb, or an open circuit in both the circuit between
the ABS
liaht and the ABS-ECU and the circuit between the ABS
l Blown fuselBurntout light. bulblMalfunction of wiring. or connector
.
light and the relay.When other lights also do not illuminate, the cause is probab ly a blown fuse.
N GNG ,
Measure at combination meter connector Checkl and l Disconnect the connector and mea-
l Disconnect the connector and mea-
sure atthe combination meter side.
l Continuitv between terminals
OK Continuity
OK
Not
Replace combination meter.
, Check the harnesses between the valve relay and the combination meter,
a n d b e t w e e n t h e A B S - E C U a n d
combination meter (common section).
Repair, if necessary.
INSPECTION PROCEDURE 4
Even after the engine is started, the ABS warning l ight Probable cause ,
remains illuminated.
[Comment]There is probably a short in the ABS light illumination l Malfunction of meter
l Malfunction of valve relay
l Malfunction of ABS-ECU
l Malfunction of wiring
NOTE
This trouble symptom is limited to cases where comm unication with the scan tool is
supply is normal) and the diagnostic trouble code is a normal diagnostic trouble code.
Disconnect the ABS-ECU connector Short circuit inside the combination meter or in the Does the ABS warning light remain illuminated? between the combination meter and the ABS-ECU.
NO
Replace the ABS-ECU.
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EXTERIOR Windshield and Washer
TROUBLESHOOTING
TROUBLESHOOTING HINTS1. Wipers do not operate. 1) Washer is not operative, either.l Check multi-purpose fuse No. 9.
l Check ground.
2.Low-speed (or high-speed) wiper operation only
is inoperative.
l Check wiper switch.
3. Wipers do not stop. l Check wiper motor.
l Check intermittent wiper relay.
l Check wiper switch.
4. Intermittent wiper operation is inoperative.
lCheck terminal voltage of steering-column
switch (with a built-in intermittent wiper relay) with the intermittent wiper relay
energezed.
5. The length of pause for intermittent operation
cannot be varied.
l Check variable intermittent. wiper ‘control
switch.
Check intermittent wiper relay.
6. Washer is inoperative. 1) Wiper is operative on washer-wiper
operation.
l
Check washer motor.
2)Washer-wiper operation’is inoperative also.
l Check washer switch.
7. Washer-wiper
is inoperative.
l Check intermittent wiper relay.
Terminal No.
8
Voltage
o v
Battery positive voltage
positive voltage (alternating)
C h e c k
Intermittent wiper relay or wiper switch
Intermittent wiper relay
(Normal)
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EXTERIOR Rear Wiper and Washer
REAR WIPER AND WASHER51100010045
GENERAL
OPERATION
Low-speed wiper operationI n t e r m i t t e n t w i p e r
,
l
When the wiper switch is placed in the ON
(LO) position with the ignition switch in the ACC
or ON position, the wiper operates continuously
at low speed.
Auto wiper stop operation
lWhen the wiper switch is placed in the OFF position, the cam contacts of wiper motor
causes current to flow through the auto wiper
stop circuit, allowing the wiper blades to cycle
before they reach to the stop positions. l
When the wiper switch
placed in the
position with the ignition switch in ACC or ON
position, the intermittent relay is turned
on and off.
lWhen the contacts are closed, the wiper motor
is energized.
lWhen the wiper motor is energized, the relay
contacts open; however, the cam contacts keep
the wiper motor energized until the wiper blades
return to their stop position.
SERVICE SPECIFICATION
I Standard valueI
Rear wiper blade installation position mm (in.)I
TROUBLESHOOTING51100070043
TROUBLESHOOTING HINTS
1. Wipers does not operate. 1) Windshield wiper is not operative, either.
l Check the multi-purpose fuse No. 9.
2. Low-speed wiper operation is inoperative. l Check the wiper switch.
3. Intermittent wiper operation is inoperative.
lCheck terminal voltage of wiper switch (with
a built-in intermittent wiper relay) with the intermittent wiper relay energezed. (see
table below.)
4. Wiper does not stop. l Check the wiper motor.
l Check the intermittent wiper relay.
l Check the wiper switch.
5. Washer is inoperative. 1) Wiper is operative.l Check the washer motor.
l Check the washer switch.
Terminal No. Voltage Check
6
Battery positive voltage
O-Battery positive voltage (alternating)
Intermittent wiper relay or rear wiper switch
Intermittent wiper relay
(Normal)
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SRS Service Precautions
SERVICE PRECAUTIONS52400020092
1. In order to avoid injury to yourself or others
from accidental deployment of the air bag during
servicing, read and carefully follow all the
cautions and procedures described in this
manual.
2. Do not use any electrical test equipment on
or near SRS components, except those
fiedon and
Never use an analog ohmmeter.
3.Never Attempt to Repair the Following
ponents:
SRS Air Bag Control Unit (SRS-ECU)
Clock Spring
Air Bag Module If any of these components are diagnosed as
faulty, they should only be replaced, in
dance with the COMPONENT SERVICE
dures in this manual, starting at page
4. Do not attempt repair the wiring harness
connectors of the SRS. any of the connectors
are diagnosed as faulty, replace the
harness. If the wires are diagnosed asfaulty,
replace or repair the wiring harness according
to the following
SRS-ECU HarnessDestination of HarnessCorrective A c t i o n
TerminalConnector
No.(No. of
Terminals,
Color)
121 pins,
yellows5Body wiring harness Clock splingCorrector replace
Air bag module (Driver’s side)bodywiring harness
6Replace clock
7Body wiring harness Air bag module (Front passenger’s side)Corrector replace
body
8
9, 10
11Body wiring harness Data link connectorCorrect or
body harness
12
13
14
15
Body wiring harness Junction block (fuse
Body wiring harness Junction block (fuse
Body wiring harness Instrument panel wiring harness
SRS warning light .
or
replace. harness
16 to 19 ,
20
21
Body wiring harness GroundCorrect or replace
body harness
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