2004 MITSUBISHI LANCER EVOLUTION VIII to pair

MANUAL TRANSMISSION TROUBLESHOOTING2217
Code No.65 ABS monitor systemAssumed cause of concern
In cases where the ABS is detected to have been operating
continuously for at least 1 minute, code No.65 is output.• Harness, connector malfunction
• ABSECU malfunction
• 4WDECU malfunction

MUTII/III Service data
• No.61 ABS monitor
(1)ABSECU connector: undo
OK:ON
(2)ABSECU connector: connect
OK:OFF
OK > intermittent malfunction
Measurement at C37 4WDECU
• Undo connector, take measurement on harness side
• Voltage between 48 – body earth
OK:battery voltage
Connector check:C37
NG> repair
MUTII/III Service data
• No.61 ABS monitor
(1)Press ACD mode switch
OK:OFF
NG > replace 4WDECU
OK > intermittent malfunction
Connector check:C37, B109
NG > repair
Check harness between 4WDECU and ABSECU
• Check output wire for shorting, damage
NG > repair
Connector check:C37, B109
NG > repair
Check harness between 4WDECU and ABSECU
• Check output wire to see if broken, shorting, or
damaged
NG > repair
B109 Measurement at ABSECU connector
• ECU terminal voltage measurement
• Voltage between 3 – body earth
• Carry out ABS actuator test (no.05: ABS signal)
OK:For 10 seconds during test, 1V or less, after
which battery voltage
NG > replace hydraulic unit, ABSECU
(1) NG
NG
(2) NG
OK
OK
OK
OKOK

MANUAL TRANSMISSION TROUBLESHOOTING2218
Code No.74 Proportional valve systemAssumed cause of concern
In cases where the proportional valve control circuit
is shorting, code No.74 is output.• Proportional valve malfunction
• Harness, connector malfunction
Remarks*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
MUTII/III Service data
• No.11 Proportional valve current
OK:P.2232 Refer to (Service Data List)*2
OK > Intermittent malfunction
Measurement at F25 proportional valve
connector
• Undo connector, take measurement on proportional
valve side
• Resistance between 2 3
OK:4.7Ωor less
Measurement at F25 proportional valve
connector
• Undo connector, take measurement on harness side
• Resistance between 2 – body earth
OK:2Ω or less
Connector check:F25, F22
NG > repair
Check harness between proportional valve
body earth
•Check earth wire to see if broken or damaged
NG > repair Replace hydraulic unit
Connector check:F25, F22, C30, C133, C38
NG > repair
Check harness between 4WDECU and Proportional
valve
•Check output wire to see if broken, shorting, or
damaged
NG > repair
MUTII/III Service data
• No.11 Proportional valve current
OK:refer to P.2232 (Service Data List)*2
NG: replace 4WD ECU
OK > Intermittent malfunction
Code No.81 Electric pump relay systemAssumed cause of concern
Output when the circuit on the pump relay coil side is broken
or shorting.• Electric pump relay malfunction
• Harness, connector malfunction
• 4WDECU malfunction
Remarks*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
MUTII/III actuator test
• No.04 Electric pump operation
OK:the electric pump operating sound is audible
OK > Intermittent malfunction
Check electric pump relay (refer P.2253)
*2
Measurement at B127 electric pump relay connector
• Undo connector, take measurement on harness side
• Resistance between 1 – body earth
OK:2Ωor less
Connector check:B127
NG > repair
Check harness between electric pump relay body earth
•Check earth wire to see if broken or damaged
NG > repair Replace electric pump relay
Connector check:B127, C38
NG > repair
Check harness between 4WDECU and electric pump relay
•Check power supply wire to see if broken, shorting,
or damaged
NG > repair
MUTII/III Actuator test
• No.04 Electric pump operation
OK:the electric pump operating sound is audible
NG:replace 4WD ECU
OK > NG
OK
OK
OK
OK
OK
NG
OK
OK
NG
NG
OK
OK
OK
NG
OK

MANUAL TRANSMISSION TROUBLESHOOTING2219
3.Fault classification
4. Fault classification procedure
Checking procedure 2
FaultCheck procedure No.Page ref.
No communication between MUTII/III and 4WDECU22219
When ignition switch is ON, (engine stopped), ACD mode indicator lamp does not come on.32220
Even after engine starts, at least 2 ACD mode indicator lamps remain lit 42220
No communication between MUTII/III and 4WDECUAssumed cause of concern
Diagnosis output circuit, 4WDECU power supply circuit,
earth circuit or 4WDECU malfunctions are possible.• Harness, connector malfunction
•4WDECU malfunction
Measurement at C122, diagnosis code connector and
C37 4WDECU connector.
• Resistance between C122 1 and C37 46
• Resistance between C122 7 and C37 35
OK:2Ω or less
Measurement at C38 4WDECU connector
•Measure ECU terminal voltage
• Ignition switch ON
OK:battery voltage
Measurement at C37, C38, 4WDECU connector
• Undo connector, take measurement on harness side
• Resistance between C38 26 and body earth
Connector check:C37, C38
NG > repair
Fault confirmation Replace 4WDECU
Connector check:C37, C23, C22, C20, C122,
C110, C06
NG > repair
Fault confirmationHarness check between 4WDECU and diagnosis
connector
Connector check:C38, C212, C210, C133
NG > repair
Fault confirmation
Check harness between ignition switch and 4WDECU
•Check power supply wire to see if broken or
damaged
NG > repair
Connector check:C37, C38
NG > repair
Fault confirmation
Check harness between 4WDECU – earth
• Check earth wire to see if broken or damaged
NG > repair
OK
OK
OK
OK
NG
OK
NG
NG
OK
OK
NG
NG
NG
NG

MANUAL TRANSMISSION TROUBLESHOOTING2220
The ACD mode injector lamp does not come on when the ignition
switch is ON (engine stopped)Assumed cause of concern
ACD mode indicator lamp circuit or 4WDECU malfunctions are possible.• Harness, connector malfunction
• ACD mode indicator lamp ASSY malfunction
• 4WDECU malfunction
Measurement at C106, combi. meter connector.
• Undo connector, take measurement on harness side
• Ignition switch ON
OK:battery voltage
Measurement at C37 4WDECU connector
• Undo connector, take measurement on harness side
• Ignition switch ON
• Earth 40, 51, 52 to body earth
OK:indicator lamp on
Connector check:C37
NG > repair
Fault confirmation Replace 4WDECU
Connector check:C106, C212, C210
NG > repair
Fault confirmation
Check harness between ignition switch – ACD mode
indicator lamp ASSY
• Check power supply wire to see if broken or
damaged
•NG > repair
Check ACD mode indicator lamp ASSY
NG > replace
Connector check:C37, C133, C106
NG > repair
Fault confirmation
Check harness between ACD mode indicator lamp
ASSY 4WDECU
• Check output wire to see if broken or damaged
When C37 4WDECU connector is undone, do all
ACD mode indicator lamps all go out?
Replace 4WDECU
Check connector:C37, C133, C106
NG > repair
Fault confirmation Check harness between ACD mode indicator ASSY
4WDECU
• Check output wire for earthing, shorting
NG > repair
Replace ACD mode indicator ASSY
Checking procedure 3
Checking procedure 4
Even after engine starts, at least 2 ACD mode indicator lamps
remain litAssumed cause of concern
ACD mode indicator lamp output circuit malfunction is possible.•Harness, connector malfunction
• 4WDECU malfunction
• ACD mode indicator lamp ASSY malfunction
Remarks
This phenomenon is limited to when communication with MUTII/III is possible (4WDECU power supply normal), and diagnosis
code is normal/correct.
OK
NG
NG
NO
OK
OK
NG
NG
OK
OK
OK
NG
YESOK
NG
OK

LANCER
EVOLUTION VIII
MR
FOREWARD
This manual contains information about the main
changes in the 2004 Lancer Evolution VIII MR.
It only covers those points that are different from the
previous model. Therefore, when inspecting or
repairing electrical parts, this manual should be used in
conjunction with the related documents listed on the
following pages, if necessary.
This manual contains various different types of wiring
diagrams and circuit diagrams, but it should be
remembered that these may not always coincide with
the exact specifications of each individual vehicle.
This manual is based on the vehicle specifications as of
February 2004.
Please note that future vehicles may not match the
contents of this manual completely, due to changes in
specifications, or the like.
The units shown in this manual are the standard
international SI units. Conventional units are not
included.
February 2004
MITSUBISHI MOTOR CORPORATIONGeneral
Wiring Diagrams
Component Installation Positions
Circuit Diagrams
1
2
3
0
This manual is printed on recycled paperAny opinions, requests, or questions concerning this
manual, should be written on the ‘Servicing Comments
Form’ at the end, and sent to us by fax.
CONTENTS