Page 2017 of 2103
![MITSUBISHI SPYDER 1990 Service Repair Manual Troubleshooting
Code No. 41 (A) power circuit systemP r o b a b l e
[Comment]l Malfunction of harnesses or connectors
This diagnostic trouble code is output if the volta ge betw MITSUBISHI SPYDER 1990 Service Repair Manual Troubleshooting
Code No. 41 (A) power circuit systemP r o b a b l e
[Comment]l Malfunction of harnesses or connectors
This diagnostic trouble code is output if the volta ge betw](/manual-img/19/57345/w960_57345-2016.png)
Troubleshooting
Code No. 41 (A) power circuit systemP r o b a b l e
[Comment]l Malfunction of harnesses or connectors
This diagnostic trouble code is output if the volta ge between the (A) terminall
Malfunction of SRS-ECU,
and the ground is lower than the specified value fo r a continuous period of 5 secondsor more.
However, if the vehicle condition returns to normal , diagnostic trouble code No. 41
will be automatically erased, and the
light will switch off., .
Insulating tape
cable
I
Caution
Turn the ignition key to the “LOCK” position,
. the negative battery cable and tape terminal.
Wait at least 60 seconds after
battery
cable before doing any further work. (Refer P.
SRS check harness
OK
Measure at check harnessconnector (5).l Disconnect SRS-ECU connector
l Connect SRS check harness
connector (3).
lContinuity between terminals (20)
OK: Continuity
C h e c k t h efollowing
Check trouble symptom. .
N G
l Disconnect SRS-ECU connector l Connect check harness connector (3)
l Ignition switch: ON
l Voltage between terminal (14) and ground
OK: 9
or more
OK
Replace the SRS-ECU.
TSB Revision
Page 2018 of 2103
![MITSUBISHI SPYDER 1990 Service Repair Manual SRS Troubleshooting
Code No. 42 (B) power circuit system Probable cause
[Comment]l Malfunction of harnesses or connectorsThis diagnostic trouble code is output if the voltage betw MITSUBISHI SPYDER 1990 Service Repair Manual SRS Troubleshooting
Code No. 42 (B) power circuit system Probable cause
[Comment]l Malfunction of harnesses or connectorsThis diagnostic trouble code is output if the voltage betw](/manual-img/19/57345/w960_57345-2017.png)
SRS Troubleshooting
Code No. 42 (B) power circuit system Probable cause
[Comment]l Malfunction of harnesses or connectorsThis diagnostic trouble code is output if the voltage between the terminaland the ground is lower than the specified value fo r a continuous period of secondsor more.
However, if the vehicle condition returns to normal , diagnostic trouble code NO. 42
will be automatically erased, and the SRS warning l ight will switch off.
Battery
cableI
SRS check harness
Caution
Turn the ignition key to the “LOCK” position, disco nnect
the negative battery cable and tape the terminal.
Wait at least 60 seconds after disconnecting the battery
cable before doing any further work. (Refer to P.
Measure at SRS check harness
connector (5). l Disconnect SRS-ECU connector
l Connect SRS check harness
connector (3).
lContinuity between (20)
OK: Continuity
0 0 0 0 3 9 2 4
OK
Measure at SRS check harness connector (5).
l Disconnect SRS-ECU connector
l Connect SRS check harness connector (3)
l Ignition switch: ON
l Voltage between terminal (13) and ground
OK:
or more
O K
I
the
OK
Check trouble symptom.
NG
NG C h e c k t h eNGfollowingconnectors: and
OK
ICheck trouble symptom.
NG
Repair
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Page 2019 of 2103
![MITSUBISHI SPYDER 1990 Service Repair Manual SRS
Code No. 43 warning light drive circuit system
(Light does not illuminate.)
[Comment]This diagnostic trouble code is output when an open circuit occurs for a continuous
period of 5 MITSUBISHI SPYDER 1990 Service Repair Manual SRS
Code No. 43 warning light drive circuit system
(Light does not illuminate.)
[Comment]This diagnostic trouble code is output when an open circuit occurs for a continuous
period of 5](/manual-img/19/57345/w960_57345-2018.png)
SRS
Code No. 43 warning light drive circuit system
(Light does not illuminate.)
[Comment]This diagnostic trouble code is output when an open circuit occurs for a continuous
period of 5 seconds while the SRS-ECU is monitoring the SRS warning light and
the light is OFF (transistor OFF). However, if this code is output due to an open circ uit, if the vehicle condition returns
to
this diagnostic trouble code will be automatically erased, and the SRS light will switch off.
Battery
cable
SRS check harness
OK
Probable cause
of harnesses or connectors
l bulbl Malfunction of l Malfunction of combination meter
Caution
Turn the ignition key to the “LOCK”
the negative battery cable and tape the
Wait at least 60 seconds after disconnecting the ba ttery
cable before doing any further work. (Refer to
Measure at SRS check harness
connector (5). l Disconnect SRS-ECU connector
l Connect SRS check harness
connector (3).
l between terminals (20)
OK: Continuity
OK
[Check trouble symptom.
l Ignition switch: ON
l Connect terminal (15) to the body ground.
OK: Light illuminates
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Page 2020 of 2103
![MITSUBISHI SPYDER 1990 Service Repair Manual SRS Troubleshootina
Code No. 43 warning light drive circuit system
(Light does not switch off.) Probable cause
Insulating tape
[Comment]l
Malfunction of harnesses or connectors
Thi MITSUBISHI SPYDER 1990 Service Repair Manual SRS Troubleshootina
Code No. 43 warning light drive circuit system
(Light does not switch off.) Probable cause
Insulating tape
[Comment]l
Malfunction of harnesses or connectors
Thi](/manual-img/19/57345/w960_57345-2019.png)
SRS Troubleshootina
Code No. 43 warning light drive circuit system
(Light does not switch off.) Probable cause
Insulating tape
[Comment]l
Malfunction of harnesses or connectors
This diagnostic trouble code is output when a to ground occurs in the harness l Malfunction of between the light and the SRS-ECU while the SRS-ECU is monitoring the SRS light and the light is ON.
Caution
Turn the ignition key to the “LOCK” position, disco nnect
the negative battery cable and tape the terminal.
Wait at least 60 seconds, after disconnecting the battery
cable before doing any further work. (Refer to P.
Battery cable
Does light switch off when SRS-ECU connector
Replace the SRS-ECU. Check trouble symptom.N GRepair
Probable cause
Code No. 44 warning light drive circuit system
[Comment]l Malfunction of SRS-ECU
This diagnostic trouble code is output when a short occurs in the light drive circuit
or a malfunction of the output transistor inside th e SRS-ECU is detected while the
SRS-ECU is
the SRS liaht drive circuit.
Insulating tape
Battery cable
Caution
Turn the ignition key to the “LOCK” position, disco nnect
the negative battery cable and tape the
Wait at least 60 seconds after disconnecting the battery
cable before doing any further work. (Refer to P.
Replace the SRS-ECU.
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Page 2021 of 2103
![MITSUBISHI SPYDER 1990 Service Repair Manual SRS Troubleshooting
Code No. 45 non-volatile memory (EEPROM)
and A/D converter system Probable cause
[Comment]l of SRS-ECUThis diagnostic trouble code is output if there is
a malfunctio MITSUBISHI SPYDER 1990 Service Repair Manual SRS Troubleshooting
Code No. 45 non-volatile memory (EEPROM)
and A/D converter system Probable cause
[Comment]l of SRS-ECUThis diagnostic trouble code is output if there is
a malfunctio](/manual-img/19/57345/w960_57345-2020.png)
SRS Troubleshooting
Code No. 45 non-volatile memory (EEPROM)
and A/D converter system Probable cause
[Comment]l of SRS-ECUThis diagnostic trouble code is output if there is
a malfunction in the SRS-ECU tile memory (EEPROM) or converter.
tape
Battery cable
Caution
Turn the ignition key to the “LOCK” position, disco nnect
the negative ‘battery cable and tape the terminal.
Wait at
seconds after disconnecting the battery
cable before doing any further work. (Refer to P.
Replace the SRS-ECU.
I
Code or 52 Drivers’s air bag module (Squib
ianition drive circuit) svstem Probable cause
[Comment]l
Malfunction of SRS-ECUThese diagnostic trouble codes are output when a sh ort-circuit or open circuit occurs in the squib ignition circuit inside the SRS-ECU.
Insulating tape
Battery cable
Caution
Turn the ignition key to the “LOCK” position, disco nnect
the negative battery cable and tape the terminal.
Wait at least 60 seconds after disconnecting the battery
cable before doing any further work. (Refer to
Replace the
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Page 2022 of 2103
SRS Troubleshooting
Code or 55 Front passenger’s air bag module
(Squib ignition drive
system Probable cause
[Comment]l
Malfunction of SRS-ECUThese diagnostic trouble codes are output when a sh ort-circuit or open circuit occurs in the squib ignition drive circuit inside the SRS-ECU.
Insulating tape
Battery cable
Caution
Turn the ignition key to the “LOCK” position, disco nnect
the negative battery cable and tape the terminal.
Wait at least 60 seconds after disconnecting the battery
cable before doing any further work. (Refer to
Replace the SRS-ECU.
lightwarning
TSB Revision
SRS WARNING LIGHT INSPECTION
1. Check that the warning ‘light
ignition switch is in the ON position.
2.Check that it illuminates for approximately 7 and
then switches off.
3.If the above is not the case, check the diagnostic trouble
codes.
Page 2023 of 2103

SRS Troubleshooting
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptom
Communication with scanCommunication with all systems is not possible.
tool is not possible. Communication is not possible with SRS only.
When the ignition key is turned to “ON” (engine sto pped), the SRS warning light
does not illuminate.
After the ignition switch is turned to ON, the SRS warning light is still on after
approximately 7 seconds have passed. Inspection
Procedure
Reference
,
1 .
2 ,
Refer to5 2 5 2 3
diagnostic
trouble code
Refer to
diagnostic
trouble code
No. 43.
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
INSPECTION PROCEDURE 1
Communication with scan tool is not possible.
(Communication with all systems is not possible) Probable cause
[Comment]l of connectors
The cause is probably in the power supply system (i ncluding ground circuit) of thel
Malfunction of harness
diagnostic line.
Refer to GROUP
Troubleshooting Engine (Non-turbo)>.
Refer to GROUP
Troubleshooting Engine (Turbo) and 2.4
INSPECTION PROCEDURE 2
Communication with scan tool is not possible.
(Communication is not possible with
only) Probable cause
[Comment]l
Malfunction of harnesses or connectors
If communication is not possible with the only, the cause is probably an open l
Malfunction of circuit in the on-board diagnostic output circuit o f the or in the power circuit(including ground circuit).
Insulating tapeCaution
Turn the ignition key to the “LOCK” position, disco nnect
the negative battery cable and tape the terminal.
Wait at least 60 seconds after disconnecting the ba ttery
cable before doing any further work. (Refer to
Page 2024 of 2103

SRS Troubleshooting/Maintenance/Post-collision Diagnosis
SRS check harness 613).
0 0 0 0 3 8 2 4Measure at SRS check harness
connector (5). l Disconnect
connector
l Connect SRS check harness
connector (3)
l
Continuity between terminals (20)
OK: Continuity
Measure at SRS check harness connector (5).
l Disconnect SRS-ECU connector
l Connect check harness connector (3)
l Ignition switch: ON
l Voltage between the terminal (13) and ground
OK: 9
or more
l Voltage between the terminal (14) and ground
OK: 9
or more
Check trouble symptom.
NG
OK
Check the harness R e p a i r connector.
OK
Replace the SRS-ECU
MAINTENANCE
,
The SRS must be inspected by an Authorized
after the car manufacture date. to 00
Service.)
POST-COLLISION DIAGNOSIS
To inspect and service the after a collision
or not the air bags has deployed), perform the foll owing steps.
S R S A I R B A G C O N T R O L
MEMORY CHECK
1. Connect the scan tool to the data link connector .
Caution
Turn the ignition switch before or
connecting the scan tool.
Revision