1990 MITSUBISHI SPYDER instrument panel

G E N E R A L Maintenance
Protective tube
harness
6. Check clock spring connectors and protective tube for
damage, and terminals for deformities.
7. Visually check the clock spring case for damage.
8.Align the mating mark of the clock spring and, afte r turning
the vehicle’s front wheels to
position, install
the clock spring to the column switch.
Mating mark alignment
Turn the clock spring fully clockwise, and turn bac k it
approx. 3 and
turns counterclockwise to align the
mating marks.
Caution
If the clock spring’s mating mark is not properly
aligned, the steering wheel may not be completely
rotational during a turn, or the flat cable within the
clock spring may be severed, obstructing normal op-
eration of the SRS and possibly leading to serious
injury to the vehicle’s driver and passenger.
9. Install the steering column covers, steering whe el and
the air bag module.
10. Check steering wheel for noise, binds of diffic ult operation.
11. Check steering wheel for excessive free play.
REPLACE ANY VISUALLY INSPECTED PART IF IT
FAILS THAT INSPECTION.
(Refer to GROUP
-Air Bag Module and Clock Spring.)
Caution
The SRS may not activate if any of the above compo-
nents is not installed properly, could result
in serious injury or death to the vehicle’s driver and
passenger.
INSTRUMENT PANEL WIRING HARNESS AND BODY
WIRING HARNESS
1. Check connector for poor connection.
2.Check harnesses for binds, connectors for damage, a nd
terminals for deformations.
REPLACE ANY CONNECTORS OR HARNESS THAT
FAIL THE VISUAL INSPECTION.
(Refer to GROUP
SRS Service
Caution
The SRS may not activate if SRS harnesses or connec -
tors are damaged or improperly connected, which
could result in serious injury or death to the vehicle’s
driver and passenger.
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ON-BOARD DIAGNOSTICS
The
Control Module (PCM) monitors
many different circuits in the fuel injection syste m.
If the PCM senses a problem with a monitored
circuit often enough to indicate an actual problem,
it stores a diagnostic trouble code in the
memory.
After the PCM first detects a malfunction, a
diagnostic trouble code is recorded when the engine
i s r e s t a r t e d a n d t h e s a m e m a l f u n c t i o n i s
re-defected. However, for items marked with a
a diagnostic trouble code is recorded the
first detection of the malfunction.
After that, if the PCM does not re-detect the
malfunction for 40 drives* (51 engine start for
non-emission related faults), the diagnostic troubl e
code will be erased from the PCM memory.
NOTE
A drive indicates from engine start to stop and
monitors the power train component.
However, for misfiring or a fuel system rich/lean,
the diagnostic trouble codes will be erased under
the following conditions.
lWhen driving conditions (engine speed, engine
coolant temperature, etc.) are similar, to those
when the malfunction was first recorded.
l When the PCM does not re-detect the
malfunction for 80 drives*.
Technicians can display stored diagnostic trouble
codes by two different methods.
ENGINE (NON-TURBO)> Troubleshooting
The first is to cycle the ignition switch
On-Off-On-Off-On within 5
Then count
the number of times the malfunction indicator lamp
(check engine lamp) on the instrument panel flashes
on and off. The number of flashes represents the
diagnostic trouble code. There is a slight pause
between the flashes representing the first and
second digits of the code. Longer pauses separate
individual trouble codes. The second method of
reading diagnostic trouble codes uses
scan
Connect the scan tool to the
(diagnostic) connector in the vehicle.
FREEZE FRAME DATA
The PCM records the diagnostic trouble code and
also the engine operating conditions the time
the malfunction was detected. are called
“freeze frame” data.
This data indicates the engine operating condition
from when nothing at all is the initial
detection of the
However, misfiring
or fuel trim malfunction data are always. replaced
with the latest data.
This data can be read by using the scan tool, and
can then be used in simulation tests for
troubleshooting.
Data items are as follows.
DataUnit
Engine coolant temperature
Engine speed
Vehicle speed
or
or RPM
km/h or mph
Long-term fuel compensation (Long-term fuel trim)
Short-term fuel compensation (Short-term fuel trim)
Fuel control condition O p e n l o o p
l Closed loop
l Open loop-Drive condition
l Open loop-DTC set
lMalfunction of closed (rear)
Calculated load value
MAP vacuum
(vacuum)
Diagnostic trouble code during data recording
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ENGINE (NON-TURBO)> Troubleshooting 3
If scan tool not available
1.Cycle the ignition key On-Off-On-Off-On within seconds.
2.Count the number of times the malfunction indicator lamp
(check engine lamp) on the instrument panel flashes on
and off. The number flashes represents the trouble
code.There is a slight pause between the flashes
representing the first and second digits of the’ co de.
Longer pauses (approx. 4 seconds) separate individu al
,
trouble codes.
3. Repair the malfunction while referring to the in spection
chart for diagnostic trouble codes.
4. After disconnecting the battery cable from the b attery
terminal for a few minutes, reconnect the
5.Start the engine and run it at for about minutes
after the engine has warmed up.
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ENGINE AND EMISSION CONTROL Auto-cruise Control
TROUBLESHOOTING ENGINE (NON-TURBO)>
DIAGNOSTIC TROUBLESHOOTING FLOW
Reoccurs not reoccur
No diagnostic troubleDiagnostic troubleNo diagnostic
code or can’t code displayed
with scan tool
NOTE
Before carrying out trouble diagnosis, check all th e following items.
Is the vacuum hose correctly installed and undamag ed?
2. Are the auto-cruise, accelerator, and throttle c ables routed correctly?
3. Do the link assembly and cables move smoothly?
4. Is the play of each cable within its standard va lue?
DIAGNOSTIC FUNCTION
HOW TO READ THE DIAGNOSTIC TROUBLE
When using the scan tool
Connect the scan tool to the data link connector, a nd then
readthe diagnostic trouble codes.
the ignition switch off or
disconnecting the scan tool.
(2)Use the special tools and to
connect the scan tool as illustrated.
If scan tool not available 1. Cycle the ignition key On
Off On Off On within
5 seconds.
2.Count the number of times the check engine/malfunct ion
indicator lamp on the instrument panel flashes on and
off. The number of flashes represents the trouble c ode.
There is a slight pause between the flashes to sepa rate
the first and second digits of the code. Longer pau ses
f l a s h e s s e p a r a t e i n d i v i d u a l t r o u b l e c o d e s .
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ENGINE AND EMISSION CONTROL Auto-cruise
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptomInspectionR e f e r e n c e
procedure No. page
Communication with scan tool is not possible.11 7 - 1 3
Auto-cruise control doesWhen engine speed rises suddenly217-13not cancel.
When brake pedal is depressed
3 17-14
When selector lever is set to range 417-14
When CANCEL switch is set to ON5.
Auto-cruise control cannot be set. 617-15
Hunting (repeated acceleration and deceleration) occurs at the set vehicle speed.7
When the auto-cruise control main switch is ON, the switch indicator on the6 1 7 - 1 5instrument panel does not illuminate. (However, aut o-cruise control is normal.)
Auto-cruise control main switch illumination light does not illuminate.
917-16
Auto-cruise control indicator light inside combinat ion meter does not illuminate.1 7 - 1 6
[However, auto-cruise control is normal.)
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
INSPECTION PROCEDURE
with scan tool is not possible.
Probable cause
[Comment] l
Malfunction of the A defect in the power supply system (including grou nd) for the diagnostic line mayl Malfunction of harness.
be present.
Refer to GROUP
Troubleshooting.
INSPECTION PROCEDURE 2 When engine speed rises suddenly, auto-cruise contr ol
does not cancel.
[Comment]A malfunction of powertrain control module may exist.
Replace the powertrain control module. l
Malfunction of the
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ENGINE AND EMISSION CONTROL Auto-cruise System
INSPECTION PROCEDURE 6
Auto-cruise control cannot be set.
[Comment]A malfunction of the auto-cruise control switch circuit may exist.
c a u s e,lMalfunction of the auto-cruise control switch
l M a l f u n c t i o n o f spring.
l Malfunction of the connector.
l
of
Auto-cruise control switch checkN G
Measure at clock spring connector
Disconnect the connector and mea-
* Voltage between terminal (3) and
and 40 Check trouble symptom.
Check the harness between the clockspring and ground. Repair, if necessary.
INSPECTION PROCEDURE 7
Hunting (repeated acceleration and deceleration) oc curs at the
set vehicle speed.
[Comment]
A malfunction of a speed sensor, the speed control servo, or the vacuum supply may be present.
For vehicle speed sensor checkFor input speed sensor or output speed sensor check(Refer to GROUP 54 Combination Meter.)
Speed control servo checkN G
Probable cause
lMalfunction the vehicle speed sensor lMalfunction of the input speed or outputspeed sensor l Malfunction of the l Malfunction of the vacuum supply.
l Malfunction of the PCM.
OK
Vacuum supply check (ReferNG
the PCM.
INSPECTION PROCEDURE 8
When the auto-cruise control main switch is ON, the switch
indicator on the instrument panel does not illumina te.
(However, auto-cruise control is normal.) Probable cause
[Comment]l
Malfunction of the auto-cruise control main
Blown bulb in auto-cruise control main switch.switch.
theau t o - c r u i s e c o n t r o l m a i n s w i t c h .
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ENGINE AND EMISSION CONTROL Auto-cruise Control
INSPECTION CHART FOR SYMPTOMS
Communication with
scan tool is not
possible. Communication with systems is not possible.
Communication with auto-cruise control-ECU only
is not possible.1
2
Input switch inspection using the scan tool is not possible. (However,
diagnostic inspection is possible.)3 .
Auto-cruise control When brake pedal is depressed 4 does not cancel. When clutch pedal is depressed
When select lever is set to range
When CANCEL switch is set to ON
5
17-26
I 7 17-27
Trouble symptomInspection
procedure No.Reference page
The diagnosis result displayed on the scan tool is normal even though
auto-cruise control cannot be set.
Auto-cruise control cannot be set.I9
Hunting (repeated acceleration and deceleration) oc curs at the set vehicle
speed.I1
When the auto-cruise control main switch is ON, the switch indicator on the
instrument panel does not illuminate. (However, aut o-cruise control is normal.)
Auto-cruise control main switch illumination light does not illuminate.111 7 - 2 9 , .
1217-29
Auto-cruise control indicator light inside combinat ion meter does not illuminate.
(However, auto-cruise control is normal.)13
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ENGINE AND EMISSION CONTROL Auto-cruise
INSPECTION PROCEDURE 11
When the auto-cruise control main switch is ON, the switch
indicator on the instrument panel does not illumina te.
(However, auto-cruise control is normal.) Probable cause
[Comment]l auto-cruise control main
Blown bulb in auto-cruise control main switch.switch.
Replace the auto-cruise control main switch.
INSPECTION PROCEDURE 12
Auto-cruise control main switch illumination light does not
illuminate. Probable cause
[Comment]A malfunction of auto-cruise control main switch, h
arness, or connector may exist.l
Malfunction of the auto-cruise control main
switch. Malfunction of the connector.
l Malfunction of the harness.
(Refer to
Measure at auto-cruise control main
switch connector
lDisconnect the connector and mea-sure at the harness side.
l Voltage between terminal (2) and
groundOK: Battery positive voltage
NG
Check trouble symptom.
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