Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 561

52B-30
Code No.41 Power supply circuit system (fuse No.2
circuit)
This codes output when the voltage between terminal IG
No.16) and earth has been below the standard value for 5 seconds.
However, code No.41 is automatically erased and SRS warning lamp goes out
when a normal operation is resumed. If code No.41 and 42 are output at the
same time, check the battery first since the battery voltage may have decreased.
Check the junction block general fuse No.2.
Check when fuse disconnects
D Replace the fuse.
D Turn the ignition switch to the ON position and then turn it
to the OFF position after one minute or more has passed.
Check the fuse.
<Check the circuit between the SRS-ECU and the junction
block>
Measure at the junction block connector C-213.
D Disconnect the junction block connector C-213 and
measure at the harness side.
D Continuity check between terminal 24 and body earth
Caution
Do not directly insert a probe or other devices at the
front of the connector to avoid a possible decrease in
the contact pressure.
OK: No continuity
Connector C-213
NG
<Check the circuit between the junction
block and the combination meter>
Measure at the junction block connector
C-213.
D Disconnect the junction block connector
C-213 and measure at the harness
side.
D Continuity check between terminal 25
and body earth
Caution
Do not directly insert a probe or
other devices at the front of the
connector to avoid a possible
decrease in the contact pressure.
OK: No continuity
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SRS -
(SRS-ECU, terminal
1
Fuse disconnection
Fuse disconnection
OK
Connector C-213
Troubleshooting
Possible Cause
D Harness or connector fault
D SRS-ECU inoperable
Fuse is normal
<Between the SRS-ECU and the ignition switch IG
Measure at the SRS-ECU connector C- 21.
D Disconnect the SRS-ECU connector C-21.
D Connect the negative (- ) terminal of the battery
D Ignition switch: ON
D Measure at the harness side
D Voltage between terminal 16 and body earth
Caution
Do not directly insert a probe or other devices at the
front of the connector to avoid a possible decrease in
the contact pressure.
OK: 9 V or more
NG
Check connector: C-21, C-213, C-210
OK
Check the trouble symptoms.
NG
Check the harness between the SRS-ECU and the ignition
switch IG , and repair if necessary.
1
NG Correct the harness between the junction block and
combination meter (SRS warning lamp).
OK
Check the other circuits using the general fuse No.2.
(See the Electrical Wiring Diagram.)
1>
Connector C-21
OK
Replace the SRS-ECU.
NG
Correct