2004 MITSUBISHI LANCER EVOLUTION VIII ECU

MANUAL TRANSMISSION TROUBLESHOOTING2215
Code No.62 ACD mode switch systemAssumed cause of concern
In cases where the ACD mode switch remains ON for 60
seconds or more, code No.61 is output.• ACD mode switch malfunction
• Harness, connector malfunction
Remarks*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
MUTII/III Service data
• No.63 ACD mode switch
(1)Press ACD mode switch
OK:ON
(2)Release ACD mode switch
OK:OFF
OK > intermittent malfunction
Check ACD mode switch (refer to P.2253)
*2
NG > replace
Measurement at C134 ACD mode switch connector
• Undo connector, take measurement on harness side
•Ignition switch: ON
• Voltage between 2 – earth
OK:battery voltage
Measurement at C37 4WDECU connector
•Measure ECU terminal voltage
• Ignition switch: OFF
•Voltage between 47 – earth
(1)Press ACD mode switch
OK:battery voltage
(2)Release ACD mode switch
OK:1V or less
Connector check:C37
NG > repair
MUTII/III Service data
• No.63 ACD mode switch
(1)Press ACD mode switch
OK:ON
(2)Release ACD mode switch
OK:OFF
NG > replace 4WDECU
OK > intermittent malfunction
Connector check:C134, C209, C210
NG > repair
Check harness between ACD mode switch – ignition
switch
•Check for broken power supply wire, damage
NG > repair
Check harness between junction block – combi. Meter
•Check power supply wire for earth, damage
NG > repair
Connector check:C134, C133, C37
NG > repair
Check harness between 4WDECU – ACD mode
switch
• Check to see if output wire is broken or damagedNG > repair
NG
NG
NG
OK
OK
OK
OK
OK
OK
OK

MANUAL TRANSMISSION TROUBLESHOOTING2216
Code No.63 Parking brake switchAssumed cause of concern
In cases where, at 15kph or over, the parking brake switch
remains ON for 15 minutes or more, code No.63 is output.• Parking brake switch malfunction
•Harness, connector malfunction
• ABSECU malfunction,
•4WDECU malfunction
Remarks*1: Refer to ’005 Lancer Sedia Service Manual (No.1036K00)
MUTII/III Service data
• No.62 Parking brake switch
(1)Apply parking brake lever
OK:ON
(2)Release parking brake lever
OK:OFF
OK > intermittent malfunction
When parking brake lever is
released, does the brake
warning lamp go off?
Measurement at D25, parking
brake switch connector
•Undo connector, take
measurement on harness side
•Ignition switch: ON
• Voltage between 1 – earth
OK:battery voltage
Connector check:D25
NG > repair
Check, and if necessary adjust,
the play in the parking brake
lever
(refer to Group 36 – Vehicle
Servicing)
*1
NG > Adjust
Check parking brake switch
(refer to Group 36 – Vehicle
Servicing)
*1
NG > adjust
Connector check:C37, D25,
C20NG > repair
Connector check:D25, C37,
C20, B109 vehicles>
D25, C20, C37 vehicles>
NG > repair
(1)Check harness between
parking brake switch – 4WD
ECU
• Check output wire for
earth, damage
(2)Check harness between
parking brake switch –
combi.meter
• Check power supply wire
for earth, damage
(3) Check harness between
parking brake switch – ABS
ECU.

• Check output wire forearth, damage
NG > repair
Replace hydraulic unit, ABS
ECUCheck harness between
parking break switch – 4WD
ECU
• Check output wire to see if
broken or damaged
NG > repair
MUTII/III Service data
• No.62 Parking brake switch
(1)Apply parking brake lever
OK:ON
(2)Release parking brake lever
OK:OFF
NG > replace 4WDECU
OK > intermittent malfunction
Check brake warning lamp bulb
NG > replace
Replace combi. meter
YESOK
(1) OK
(2) OK
NG
NG
NO
OK
OK
OK
(3) OK
OK
OK
OK

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

FRONT SUSPENSION – STRUT ASSEMBLY33A3
CAUTION
(1) To compress the coil spring securely, ensure that the
special tool is extended as far as the spring will allow,
then fitted evenly to the coil spring.
(2)There is a danger of special tool damage, so do not use
an impact wrench.
2. Using the following special tools, release the selflocking nut.
• Special spanner (MB991367)
• Pin (MB991385)
CAUTION
There is a danger of the lock nut inside the strut piston rodworking loose, so when loosening the selflocking nut, do
not use an impact wrench.
Important note on assembly
Fitting selflocking nut
1. With the coil spring compressed with the special tool,
temporarily tighten the selflocking nut.
2. Match up strut assembly hole in lower spring seat, and hole in
upper spring seat.
Remarks
Using a lever to align the holes can make this job easier.
3. Match both tips of coil spring precisely with the slots on the
spring seats, and release the special tool.
4. Using the special tool, tighten the selflocking nut to the
specified torque.
Tightening tor
que: 60 ± 10N·m
CAUTION
There is a danger of the lock nut inside the strut piston rod
working loose, so when loosening the selflocking nut, do
not use an impact wrench.
A

Related documentation
Cautionary Note regarding servicing of vehicles fitted with SRS airbags and/or seatbelts with
pre-tensioner systems.
Warnings:
1. Incorrect inspection or servicing of a component part of the SRS airbag system or seatbelt pre-tensioner system, or
a part relating to these systems, may cause accidental operation (deployment) of the SRS airbag or seatbelt pre-
tensioners, or may cause these systems to be disabled, leading in either case the risk of serious injury.
2. If parts may be affected by heat during painting operations, then those parts must be removed in advance. This
applies to the SRS-ECU, airbag modules (driver’s sear and front passenger’s seat), clock springs, front impact
sensors, side impact sensors, and pre-tensioner seatbelts.
• 93ºC or above : SRS-ECU, airbag modules (driver’s sear and front passenger’s seat), clock springs, front impact
sensors, side impact sensors
• 90ºC or above : Pre-tensioner seatbelts
3. The component parts of the SRS airbag system or seatbelt pre-tensioner system, and parts relating to these
systems, must always be inspected and serviced by a Mitsubishi dealer.
4. Service personnel must read the relevant service manuals (particularly, Section 52B – SRS Airbags) carefully and
thoroughly, before inspecting or servicing the component parts of the SRS airbag system or seatbelt pre-tensioner
system, and parts relating to these systems.
Title of Document No. Date of
IssueTitle of Document No. Date of
Issue
Body Manuals (Service Manual)
• Mirage, Lancer (supplement)
• Lancer Cedia
• Lancer Cedia (supplement)
• Lancer Evolution VII
(supplement)
• Lancer Cedia (supplement)
• Lancer (supplement)
• Lancer Evolution VIII MR
(supplement)1036F52
1036K50
1036K51
1036K52
1036K53
1036K54
1036K55Aug 1996
May 2000
July 2000
May 2001
Oct 2001
Feb 2003
Feb 2004
Electrical Wiring Diagrams
Service Manual
• Lancer Evolution VIII 1036K77 Jan 2003
New Vehicle Manuals
• Mirage, Lancer
• Mirage, Lancer
• Mirage, Lancer
• Mirage, Lancer
• Mirage
• Mirage, Lancer
• Lancer
• Lancer
• Lancer Cedia
• Lancer Cedia
• Lancer Evolution VII
• Lancer Cedia
• Lancer Cedia
• Lancer Evolution VII
• Lancer Cedia
• Lancer Evolution VIII
• Lancer
• Lancer
• Lancer Evolution VIII MR1036F30
1036F31
1036F32
1036F33
1036F34
1036F35
1036F36
1036F37
1036K30
1036K31
1036K32
1036K33
1036K34
1036K35
1036K36
1036K37
1036K38
1036K39
1036K40Oct 1995
Jan 1996
Aug 1996
Jul 1997
Jan 1998
Oct 1998
Jan 1999
Dec 1999
May 2000
July 2000
Jan 2001
May 2001
Oct 2001
Jan 2002
May 2002
Jan 2003
Feb 2003
Dec 2003
Feb 2004Engine Service Manual
• 4G6 Engine
• 4G6 Engine (supplement)1039G46
1039G63Jan 2001
Jan 2003
Service Manuals
• Lancer Cedia
• Lancer Cedia (supplement)
• Lancer Evolution VII
(supplement)
• Lancer Cedia (supplement)
• Lancer Cedia (supplement)
• Lancer Evolution VII
(supplement)
• Lancer Cedia (supplement)
• Lancer Evolution VIII
(supplement)
• Lancer (supplement)
• Lancer (supplement)
• Lancer Evolution VIII MR
(supplement)1036K00
1036K01
1036K02
1036K03
1036K04
1036K05
1036K06
1036K07
1036K08
1036K09
1036K10May 2000
July 2000
Jan 2001
May 2001
Oct 2001
Jan 2002
May 2002
Jan 2003
Feb 2003
Dec 2003
Feb 2004Transmission Service Manual
• W5M51 Manual Transmission
• W5M51 Manual Transmission
(supplement)
• W6MAA Manual Transmission1039M17
1039M22
1039M23Jan 2001
Jan 2003
Jan 2003