1990 MITSUBISHI SPYDER air condition

ENGINE (NON-TURBO)>
C h a r g i n g T o o
47
[Comment]
Background
The PCM tries to maintain charging system voltage of between and 15 volts.
l This code indicates:
The battery voltage input is below the target charg ing voltage during engine
andNo significant change in voltage has been detected during active testing of the generator
output circuit.
Range of Check
lEngine speed: or more for approx. one minutelBattery positive voltage is at least 1 lower than the target charging voltage for approx.60 seconds.Set ConditionlBattery positive voltage does not change even if th e generator field current is cut off.
lDefects in generator or adjustmentl High resistance generatorl High between battery and
generator ground
l PCM
Check that the generator drive belt is properly in stalled. Repair
NG Measure the voltage between the generator terminal and the battery positive terminal. Engine: 1600 Headlight: High beam ON)
OK: Less than
Check the harness wire and terminal generator terminal and battery necessary.
NGMeasure the voltage between the generator body and battery Check the generator grounded line: neoative terminal. Engine: 1600 Headlight: High beam ON)
OK: Less than 0.5
OK
Measure at the generator lDisconnect the connector, and measure at the harnes s side.
SCAN TOOL Actuator test 10
relay (ASD relay) isturnedonandoff everyapprox. l Voltage between 1 and ground
[Measure when the relay (ASD relay) is turned on.]
OK: Battery positive voltage
NG Check the wire between generator relay
(ASD relay) connector. Repair, if necessary.
OK
Check the harness wire NG Repair connector.I
OK NG
SCAN TOOL SENSOR READ TEST (Data list) Check the harness wire between the PCM and the bat tery 10 Battery voltage as the ignition switch. Repair, if necessary.OK: indicated on the scan tool and actual positive
Check trouble symptom.
TSB RevisionI

ENGINE (NON-TURBO)> Troubleshooting
Scan tool 06
General scan tool Charging System Voltage Too
.High
46
[Comment]
Background Generator internal shorted
l The PCM tries to maintain charging system voltage o f between 13.2 and 15 volts.l
Generator field driver shorted to ‘ground l PCM failedlThis code indicates that the battery voltage input is above the target charging voltage
during engine operation and PCM efforts to regulate the generator field do not prevent
the voltage from rising.
Range of Check
lEngine speed: 1500 or more for approx. one minute
Set Condition ,
lBattery positive voltage is at least higher than target charging voltage for approx. 12seconds.
SCAN TOOL SENSOR READ TEST (Data list)
36 Charging system goal
OK:
or more
Replace the PCM.
SCAN TOOL SENSOR
(Data list)as well as me ignitionswitch. necessary.OK: on the scan tool and actual battery positivelCheck the wire between the PCM and ground.
voltage are the same. Repair, if necessary.
OK
, NG
tor. and if necessary.
Measure at the generator connector Repair megeneralDisconnect the connector and measure at the equipme nt side.l Continuity between 2 and generator body.
OK: No continuity
I
OK
Check me following NG Repair
OK
Check trouble symptom.
Check the harness wire
NG
OK
Repair
Replace the PCM.
TSB

Scan tool 10
Code
No.General scan tool r e l a y r e l a y )
42
[Comment]
Background
lThe relay (ASD relay) controls the battery voltage sup plied to the fuel injectors, ignitioncoils, and generator.
l The PCM provides a ground path for the relay (ASD relay).
l This DTC indicates an open or short-circuit conditi on in the control circuit.
Range of Check
l Battery voltage:
or more
l Ignition switch: ON
Set Condition
l Open or short circuit is detected in the
relay (ASD relay) for 3 seconds. l
Relay coil open or shorted
l relay shortedl circuit in
Check the relay (ASD relay) (Refer to
OK
NG Replace
Measure at the
relay (ASD relay) connector lDisconnect the connector, and measure at the harnes s side.
l Voltage between 6 and ground
OK: Battery positive voltage
OK
connector and the battery., Repair, if necessary.
N G
Repair ,
OK .
Check trouble symptom.
Check the harness wi
relay)
OK
NG Repair
Replace the PCM.
Revision

(NON-TURBO)> Troubleshooting
Scan tool 11
General scan tool G e n e r a t o r F i e l d N o t S w i t c h i n g
.
41
[Comment]Background
Properly
.
l Field driver circuit open or
l The PCM receives generator field input.lBattery voltage is supplied to the generator throug h the relay relay).
Range of Check
l Ignition switch: ON
l
relay (ASD relay): ON
Set Condition
l Open or short circuit is detected in the generator field control circuit.l
Generator internal o p en o r
l PCM failed ,
SCAN TOOL Actuator test
10 relay (ASD relay) Repair the relay relay) related
OK: The relay operating sound can be heard
OK
Measure at the generator connector lDisconnect the connector, and measure at the harnes s side.
SCAN TOOL Actuator test 10
relay (ASD relay) relay is turned on 1 l Voltage between 1 and ground
[Measure with the relay (ASD relay) on]
OK: Battery positive voltage
NG Check the harness wire the and relay) connector. Repair,’ if
NGMeasure at the generator connector Disconnect the connector and measure at the compone nt side. Repair the generator, and replace if necessary ll Continuity between 2 and generator body
OK: No continuity
OKNGCheck the harness wire between the PCM and the gene rator Repairconnector.
OK
Check the following connectors:
Repair
Check trouble symptom.
NG
Repair the generator, and replace if necessary.I

Scan tool 17
C o d e G e n e r a l s c a n
No.
32I
[Comment]
Background Open short
l The PCM provides a switched ground path to the sole noid. Open o u t p u t or shorted l This DTC indicates an open or short-circuit conditi on in the control circuit.Range of Checkl Battery voltage: or morel Ignition switch: ONSet ConditionlOpen or short circuit is detected in the electric E GR transducer solenoid for 3 seconds.
I . . ,.. .
Replace (Refer to GROUP 17 Emission Control System)
OK
Measure at the electric transducer solenoid connector lDisconnect the connector and measure a the harness side.
l Voltage between 2 and ground
switch: ON) Battery positive voltage
.N G Check the following connectors:
O K
Check
Check the wire between Repair, necessary. ,
NGMeasure at the PCM connector Check the following lDisconnect the connector and measure at the harness side.
l Voltage between 40 and ground
(Ignition switch: ON)
OK: Battery positive voltage
Check the harness wire between PCM and solenoid connector. Repair, if necessary.
Check the following Repair
OK
Check trouble svmptom.
Revision
the PCM.
NG

. .
Scan tool 18
Code
No.
General Circuit
31
[Comment]
Background
lIt is operated asa PCM output providing a switched ground path once the vehicle enters
closed loop operation.
l This DTC indicates a short or
condition in the circuit.
Range of Check
Battery voltage: or more
l Ignition switch: ON
Set Condition
lOpen or short circuit is detected in the EVAP purge control solenoid control circuit for
3 seconds.
Open or short control circuit
l Open fused output , l O p e n or solenoid l . . .
Check the evaporative emission NG Replace
(Refer to GROUP 17 Emission Control System.)
OKNG. . .
Check the following connectors: Measure at the evaporative purge solenoid connector
lDisconnect the connector and measure at the harness side.
l Voltage between 1 and ground
(Ignition switch: ON)
OK: Battery positive voltage
/OK
Measure at the PCM connector lDisconnect the connector and measure at the harness side.
l Voltage between 66 and ground
switch: ON) Battery positive
Check the harness wire, between and Repair, if necessary.
NG
Check the harness wire between the and connector. Repair, if necessary.
N G Repair
Check trouble symptom.
NG
Replace the PCM.
Revision

ENGINE
Scan tool 19
Injector Control Circuit.Probable cause,
MIL 27
[Comment]
Backgroundl Open or shorted injector control
l Grounds for the injector circuits are provided by t he PCM.l i n j e c t o r
l Battery power is provided through the
relay (ASD relay) l
Open (ASD) supply l Driver in PCM failed lThis DTC is set if an open or short-circuit conditi on is detected in the control circuit for
the individual injector.
,Range of Checkl Battery voltage: or morel relay (ASD relay): ONl Engine: 3000 or lessSet Condition force is not detected for 3 seconds immediately af ter injectors
OK
NG
Measure at the injector connector Check the following connectors: lDisconnect the connector, and measure at the harnes s side.
SCAN TOOL Actuator test
10 relay (ASD relay) relay (ASD relay) is turned on and off every appro x. l Voltaae between 2 and around with the (ASD relay) on]
OK: Battery positive voltage Check the harness wire between the relay, (ASD and
the injector connector. Repair, if necessary.
Measure at the PCM connector
lDisconnect the connector and measure at the harness side.lDisconnect PCM connector and short terminal (67) of
the harness-side connector to ground.
l Voltage between 7 and ground
OK: Battery positive voltage Check the
between PCM and injector connector. Repair, if
OK
Check Repair
OK
Check trouble symptom.
NG
Replace the PCM.
Revision

ENGINE (NON-TURBO)>
Scan tool 20
Injector C i r c u i tNo.
27
[Comment]l Open or shorted injector control Backgroundl Open injector
l Grounds for the injector circuits are provided by t he PCM.l (ASD) supply l Battery power is provided through the relay (ASD relay).
l Driver tailedlThis DTC is set if an open or short-circuit conditi on is detected in the control circuit the individual injector.
Range of Check
l Battery voltage: or morel relay (ASD relay): ON
l Engine: 3000 or lessSet Conditionl force is not detected for 3 seconds immediately af ter injectors
Measure at the injector connector lDisconnect the connector, and measure at the harnes s side.
SCAN TOOL Actuator test
10
relay (ASD relay)
l Voltage between 2 and ground
[Measure with the relay (ASD relay) on]
OK: Battery positive voltage
OK
Check the harness wire between the relay relay) and
the injector connector. Repair,
Measure at the PCM connector lDisconnect the connector, and measure at the harnes s side.lDisconnect PCM connector and short terminal (67) of
the harness-side connector to ground.
l Voltage between 17 and ground
OK: Battery positive voltage Check the following
Check the harness between PCM and injector if necessary.
OKNGCheck the following connector: Repair,
OK
Check trouble symptom.
N G
Replace the PCM.
Revision