sensor MITSUBISHI SPYDER 1990 Service Workshop Manual

ENGINE (NON-TURBO)> Troubleshooting
DTC No. ItemsI
107
108
109
110
112
113
114
118
119
126 38)
Cylinder misfire
Cylinder
misfire
Cylinder
misfire
misfire
Catalytic
efficiency failure
EVAP purge flow monitor failure
Park/neutral position switch (transaxle range switc h) failure
Fuel system rich
Fuel system lean
Downstream
shorted to
128Closed loop temperature not reached
129
Downstream at center
132
133
TPS voltage does not agree with MAP
Timing belt skipped 1 tooth or more
135No 5 volts to MAP sensor
136No 5 volts to throttle position sensor
137EATX controller DTC present
138Taraet idle not reached
High speed radiator fan control relay
146 1496)
153
154
155
156
157
160
161
183
5 volts too low
Battery temperature sensor voltage too low
Battery temperature sensor voltage too high
Upstream
voltage grounded
Downstream
voltage grounded
Intermittent loss of CMP or CKP
EVAP leak monitor small leak detected
EVAP leak monitor large leak detected
Evaporative emission ventilation solenoid circuit
Evaporative emission ventilation solenoid switch or mechanical fault
EVAP leak monitor pinched hose found
NOTE
Following a detected malfunction of the Control Module (PCM), the check engine lamp
up the next time the engine is turned on if the mal function is still detected. However, for items
with an asterisk in the table above, the check engine lamp goes on’ the first time a malfundin is
detected.
Once the check engine lamp is lit, any one of the f ollowing
will turn it off.
lWhen the PCMhas found no malfunction after monitoring the power train times time
is from engine start to engine stop).
lA misfire of fuel abnormality when engine speed, coolant temperature, etc. are to those
when the malfunction was first recorded, and the PCM has detected no malfunction.
Caution
If the check engine lamp is turned on by a malfunct ion of the PCM, the scan tool communicate
with the PCM, and the diagnostic trouble code canno t be read.
,
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ENGINE (NON-TURBO)> Troubleshooting.
HOW TO READ AND ERASE DIAGNOSTIC
CODES
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1. If battery voltage is diagnostic codes.
may not be output. Be sure to check the,
and charging system before
2.If the battery is disconnected or if the connector
is disconnected, the diagnostic trouble code
will be erased. Do not disconnect the battery or
until after the diagnostic are recorded.
3. Turn the ignition switch, off before
disconnecting the scan. tool.
When using the scan tool
NOTE
When carrying out inspection General ‘Scan Tool,
mode, the interface
cartridge) and
adaptor harness do not
need to be installed.
2.The following items cannot be checked in scan
mode; they can only be checked in General Scan
Tool mode.
SENSOR READ TEST
l term fuel trim
l Calculated load vlaue
FREEZ FRAME DATA
READINESS TESTS
3. When diagnostic trouble codes (DTC) are’ erased,
the freeze frame data and
test status will
be erased at the same time. Therefore,
should be recorded if necessary
4. If the automatic transaxle DTC
been stored, the DTC for the PCM should be
after the DTC for the TCM is erased:
1. Install the interface cartridge cartridge) to the scan
tool
2. Use the cartridge adapter harness to the
scan tool
to the data link
start the engine and on the
(if applicable). Shut off the engine.
3. Read the diagnostic trouble codes.
4.Repair the malfunction while referring to the
CHART FOR DIAGNOSTIC TROUBLE CODES.
5. Turn the ignition switch to OFF and then back to ON
6. the diagnostic trouble codes using the scan tool.
7. Check that the diagnostic trouble code is normal .

ENGINE (NON-TURBO)>
INSPECTION USING TOOL SENSOR
TEST, INPUT STATE TEST,, OUTPUT AND
T E S T
1.Carry out inspection by means:’ of the data list ‘and the
actuator test function.
If there is a malfunction, check and repair the cha ssis
harnesses and components.
2. Recheck using the scan tool and check that the
malfunction has been eliminated as a result of the repairs.
3. Erase the diagnostic trouble code from memory.
4. Remove the scan tool.
5.Start the engine again and carry out a road test to confirm.
that the problem
disappeared. . .
NOTE
Refer to for Sensor Read Tests.
Refer to
for Input State Tests.
Refer to
for Output State Tests.
Refer to -for Actuator Tests.
Caution
If in the following
F U N C T I O N to the IAC.
In the following case, reset the IAC.
lThe throttle body or motor has been replaced.
lThe motor related circuit has been opened during
engine running or motor operation test.
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ENGINE (NON-TURBO)> Troubleshooting
FAIL-SAFE-BACUP FUNKTION Mode) TABLE
When the PCM detects the following malfunction (s), the PCM carries out’ fail safe/back-up
addition, the corresponding DTC number (s) can be i dentified by using the scan tool.
I
I
I
I
I
1
1
Diagnostic item
Control during malfunction
No cam signal at PCM
The PCM uses the crankshaft position sensor signal control fuel timing, etc. (Accordingly, normal sequential fuel injection may not be
out.)
Throttle position sensor The PCM uses the value calculated from the MAP sens or signal instead of the age low
valve opening angle (voltage).
Throttle position sensor The PCM uses the value calculated from the MAP sens or signal instead of the throttle
age high
valve opening angle (voltage).
Engine coolant temperature l
The PCM uses the default value as the engine
(ECT) sensor voltage too low temperature.
lThe PCM operates the radiator fan.
lThe PCM carries out open loop control.
Engine coolant temperature lThe PCM uses the default value
as the engine
(ECT) sensor voltage tootemperature.
highlThe PCM operates the radiator fan.
lThe PCM carries out open loop control.
U p s t r e a m
stays atThe PCM carries out open loop control.
center
No vehicle speed sensorThe PCM controls the engine as if the vehicle speed were 0 mph.
signal
MAP sensor voltage too low The PCM uses the value ca lculated from the throttle position sensor and the engine
speed signals instead of the MAP value
sensor voltage too high The PCM uses the value calc ulated from the throttle position sensor and the engine
speed signals instead of the MAP value
change in MAP from start The PCM uses the value cal culated from the throttle position sensor and the engine
0 runspeed signals instead of the MAP value
ntake air temperature sensorThe PCM uses the engine coolant temperature instead of the intake air temperature.
roltage low
ntake air temperature sensor
The PCM uses the engine coolant temperature instead of the intake air temperature.
roltage high
sensorThe PCM retards ignition timing according to the kn
ock sensor signal.
Jpstream shorted toThe PCM carries out open loop control.
temperature sensorThe PCM uses the default value as the battery temperature.
out of limit
speed fan control relayThe PCM turns on the high speed fan control relay i nstead of the low speed fan
relay
Jpstream responseThe PCM carries out open loop control.
to The PCM carries out open loop control.
oltage
stays atThe PCM carries out open loop control.
enter
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ENGINE (NON-TURBO)> Troubleshooting
Diagnostic item
TPS voltage does not agree
with MAP
Timing belt skipped 1 tooth or
more
No 5 volts to MAP sensor
No 5 volts to throttle position
sensor
High speed radiator fan con-
trol relay circuit
Upstream
voltage
shorted to grounded
voltage
to grounded
loss of CMP or
Control during malfunction
The PCM uses the value calculated from the MAP sens or signal instead of the throttle
valve opening angle (voltage)>
The PCM uses the crankshaft position sensor signal only to control
timing, etc. (Accordingly, normal sequential fuel injection may not be carried
out.)
The PCM uses the value calculated from the throttle position sensor and the engine
speed signals instead of the MAP value
The PCM uses the value calculated from the MAP sens or signal instead of the throttle
valve opening angle (voltage).
The PCM turns on the high speed fan control relay i nstead of the low speed fan control
relay
The PCM carries out open loop control.
The PCM carries out open loop control.
The PCM uses the crankshaft position sensor signal only to control fuel injection
timing, etc. (According, normal sequential fuel injection may not be carried
out.)
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ENGINE (NON-TURBO)> Troubleshooting
INSPECTION CHART FOR DIAGNOSTIC TROUBLE CODES
NOTE
Diagnostic trouble code (DTC) memory is not deleted even after the ignition
DTC No. DTC No.
DTC No. Diagnostic itemsCheck items, (Remedy) tool
mode>
mode>
01 54No cam signal at PCMl Harness and connector Retained
(If harness and connec-
tor are not defective,
replace; camshaft ,
sensor.) ,
02 53
Internal controller fail- Replace the PCM.,
. .
0547
46
Charging system volt- l Generator drive belt
age too lowlHarness and connector
l Generator. . ,
Charging system volt- l Generator drive belt
age too highl Harness and connector
l Generator
1042
1 141
1633
relay (ASD relay) lHarness and connector Retained
control circuitl relay (ASD relay)
G e n e r a t o r f i e l d n o t lHarness and connector Retained
switching properlyl Generator
A/C clutch relay circuitlHarness and connector Retained
l clutch relay
32
31
27
27
27
25
24
24
EGR solenoid circuitlHarness and connector Retained
EGR solenoid
EVAP solenoid circuit
Harness and connector Retained
EVAP solenoid
Injector
controllHarness and connector Retained
circuitInjector
Injector controlHarness and connector Retained
circuitlInjector
Injector controlHarness and connector Retained
circuitlInjector
Idle air control motor Harness and connector Retained
circuitslIdle air control motor
Throttle PositionHarness and connector Retained
sensor voltage lowl Throttle position sensor
Throttle positionlHarness and connector Retained
sensor voltage highl Throttle position sensor
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Check engine/Malfunction Indicator Lamp (MIL)
The number shown represents the number of pulses ob served at the MIL.

ENGINE (NON-TURBO)>
1MemoryDiagnostic itemsCheck items (Remedy)
Engine coolantHarness and
temperature sensorEngine coolant temper
voltage too low
ature sensor
Engine coolantlHarness
temperature sensorl Engirie coolant temper
voltage too high sensor
Upstream staysl Harness and
at centerl Upstream
Engine is cold too longl Engine coolant temper
ature sensor
connectorlEngine coolant
sensor
Thermostat
No vehicle speed
lHarness and
sensor signallVehicle speed sensor
MAP sensor voltagelHarness
too low (If harness connec-
tor are not defective, replace
sensor.)
MAP sensor voltagel Harness and connector
t o o h i g h
(If harness and connec-
tor are not defective,
replace MAP sensor.)
No
in MAPl Harness and connector
from start to run (If harness and connec-
tor are defective,
replace MAP sensor.)
No crankshaftl Harness and connector
reference signal at (If harness and
tor are’ not defective,
replace crankshaft posi-
tion sensqr.)
gnition coil
primaryl Harness and connector
Ignition coil
gnition coil primaryl Harness and connectorlIgnition coil
relay (ASDl connector
ay) output voltage atl relay (ASD relay)
‘CM
system failurel Harness and connector
lElectric EGR transducer
solenoid
l v a l v e
l EGR tube clogged
l Vacuum hoses
DTC NC
pulses
mode>
DTC No. DTC No. tool (MUT-II)scan toolmode>mode>
30
31
32 34
1
I
I
I
I
Retained22
22
,
I
I
I
Retained
Retained
21
17
15
14
14
33
35Retained
36Retained
Retained
13Retained
11
6
MIL: Check engine/Malfunction Indicator Lamp (MIL)
The number shown represents the number of pulses observedatthe MIL.
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E N G I N E ( N O N - T U R B O ) >
DTC No. DTC No. DTC No. Diagnostic items tool (MUT-II)scan tool pulsesmode>mode>
48 62 P C M f a i l u r e
SRI mile not storedCheck items (Remedy)
l
Replace the PCM M e m o r yRetained
49 63PCM failurel
Replace the PCM Retained
EEPROM write denied
57 23Intake air temperaturel Harness and connector Retained
sensor voltage lowIntake air temperature
sensor
58
23Intake air temperaturel H a r n e s s a n d c o n n e c t o r R e t a i n e d
sensor voltage highIntake air temperature
sensor
59
16Knock sensor
circuit
l Harness and connector Retained
(If harness and connec-
tor are not defective,
replace knock sensor.)
61 27
62 21
53
Injector control
circuit
Upstream
shorted to voltage
PCM failure
communications
lH a r n e s s a n d c o n n e c t o r R e t a i n e d lInjector
Harness and connector Retained
l Upstream
lReplace the PCM R e t a i n e d
7144Battery temperature
volts out of limitl Replace the PCM R e t a i n e d
32 35
33 35
Low speed fan controll
Harness and connector Retained
relay circuitLow speed fan relay
High speed condenserl H a r n e s s a n d c o n n e c t o r R e t a i n e d
fan control relay circuitl High speed condenser
fan relay
66No CCD messages
from TCM Harness and connector Retained
42
21
21
Fuel pump relay
control circuit
Upstream
response
Upstream
heater failure
Harness and connector Retained
lFuel pump relay
l Harness and connector Retained
l Upstream
l Harness and connector Retained lUpstream
Check engine/Malfunction Indicator Lamp (MIL)
The number shown represents the number of pulses ob served at the
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ENGINE (NON-TURBO)> Troubleshooting
DTC No. DTC No. DTC No. Diagnostic i t e m s
Check items (Remedy) Memory tool mode>mode> .
115 65 Power steering pres- Harness and connector Retained
sure (PSP) switch fail-
lPower steering pressure
ureswitch
118 52Fuel system rich*l MAP sensor output R e t a i n e dlInjectorlFuel pressurelIntake air leakslHeated oxygen sensor
119 51Fuel system lean*lIntake air temperature Retained
sensor
l Engine coolant temper-
ature sensor
l E x h a u s t
manifold
cracked
126 21
128 17
Downstreaml H a r n e s s a n d c o n n e c t o r R e t a i n e d
shorted to voltagel Downstream
Closed loop tempera- lEngine coolant temper- Retained
ture not reached ature sensor circuit and
connector
lEngine coolant temper-
ature sensor
l Thermostat
21
24
11
Downstreaml Harness and connector Retained,
stays at centerDownstream
Throttle position sensorlHarness and connector Retained
voltage does not agreelThrottle position sensor
with MAP output
lMAP sensor output
Timing belt skipped 1 l
Timing belt R e t a i n e d
tooth or morelCrankshaft position sen-
sor and camshaft posi-
tion sensor
C o n n e c t o r
37
14
24
45 No 5 volts to MAP
l H a r n e s s a n d c o n n e c t o r R e t a i n e d
sensorlMAP sensor
No 5 volts to throttle lHarness and connector Retained
position sensorl
Throttle position sensor
EATX controller DTC l A u t o m a t i c transaxle Retained
present
control systemlHarness and connector
38 25Target idle not reachedlHarness and connector Retained
Idle air control motor
Check engine/Malfunction Indicator Lamp (MIL)
The number shown represents the number of pulses ob served at ‘the,
A diagnostic trouble code is recorded on the first detection of the malfunction.
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E N G I N E
DTC No. tool(MUT-II)
155
44
21
21
11
6031
Diagnostic items Check items (Remedy) Memory
P a g e
High speed radiatorl Harness and connector Retained’
fan control relay circuitlHigh speed radiator fan
relay
5 volt supply outputHarness and connector
too low
Fuel level sending unitlHarness and connector Retained
volts too lowFuel level. sensor
Fuel level sending unit
lHarness and connector Retained
volts too highlFuel level sensor
Fuel level unit nol Harness and connector Retained
change over miles l e v e l s e n s o r
Battery temperaturel Replace the PCM. R e t a i n e d
sensor voltage too low
B a t t e r y t e m p e r a t u r e lReplace the PCM. R e t a i n e d , ,
sensor voltage too
high
UpstreamlHarness and connector Retained
voltage groundedl
Upstream
DownstreamlHarness and connector’ Retained
voltage groundedl Downstream
Intermittent loss of
CMP or CKPl Crankshaft position Retained
and camshaft posi-
tion sensor connector
EVAP leak monitor
small leak detectedlFuel tank ‘RetainedlPurge linelEvaporative emissionventilation solenoid
EVAP leak monitor
large leak detected
l Fuel tank R e t a i n e d
P u r g e l i n e
l Evaporative emission
ventilation solenoid
Evaporative emission
ventilation solenoid
circuit
Evaporative emission
ventilation solenoid
switch or mechanical
fault
l Harness and connector Retained
l E v a p o r a t i v e e m i s s i o n
ventilation solenoid
l Harness and connector Retained*“’
l Vacuum hose routing
l Evaporative emission
ventilation solenoid
EVAP leak monitor
pinched hose found P u r g e l i n e R e t a i n e d ’
l
Evaporative emission
ventilation solenoid
MIL: Check engine/Malfunction Indicator Lamp (MIL)
The number shown represents the number of pulses ob served at the MIL.
A d i a g n o s t i c t r o u b l e
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