2004 MITSUBISHI LANCER EVOLUTION VIII ignition

MANUAL TRANSMISSION TROUBLESHOOTING2212
Code No.56 Longitudinal G sensor systemAssumed cause of concern
Code No.56 is output when the longitudinal G sensor signal
falls below 0.5V or rises above 4.5V.• Harness, connector malfunction
• Longitudinal G sensor malfunction
• ABSECU malfunction
• 4WDECU malfunction
Remarks*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
MUTII/III Service data
• No.15 longitudinal G sensor power voltage
OK:P.2232 Refer to (Service Data List)*2
OK > Intermittent malfunction
Measurement at D31 lateral G sensor connector
• Undo connector and measure on harness side
•Ignition switch: ON
(1)Voltage between 1 earth
OK:battery voltage
(2)Resistance between 3 – earth
OK:2Ω or less
D29
Harness side
connector
• Remove longitudinal G sensor
• Connect the special tool between D31 longitudinal
G sensor connector harness side connector and
longitudinal G sensor.
• Ignition switch: ON
• Voltage between 2 – body earth (when longitudinal
G sensor is set on a flat surface)
OK:2.4 – 2.6V
• Voltage between 2 – body earth (when longitudinal
G sensor is placed so that the label surf
ace faces
sideways)
OK:3.3 – 3.7V
Connector check:D31, C38, C20, B109 AYC fitted vehicles> D31, C20, C38 vehicles>
NG > repair
Check harness between lateral G sensor – 4WDECU
• Check for broken output wire, earth, damage
Check harness between lateral G sensor – ABSECU
•Check output wire for earth, damage
NG > repair
Connector check:D31, C212, C210
NG > repair
Check harness between lateral G sensor – ignition
switch.
• Check for broken power supply wire, earth, damage
NG > repair
Connector check:D31, C20, B109 fitted vehicles> D31, C20, C38, vehicles>
NG > repair
Check harness between lateral G sensor – ABSECU

MUTII/III Service data
•No.15 lateral G sensor voltage
OK:Refer to P.2232 (Service Data List)*2
NG > Refer to Group 35C – Troubleshooting*2
or 4WDECU vehicles> Replace
OK > intermittent malfunction
Replace lateral G sensor
MUTII/III Service data
• No.15 longitudinal G sensor voltage
OK:Refer to P.2232 (Service Data List)*2
NG > Refer to Group 35C – Troubleshooting*2
or 4WDECU vehicles> Replace
OK > intermittent malfunction
label label
(1) NG
NG
OK
(2) NG
NG
OK
OK
OK
OK
OK
OK

MANUAL TRANSMISSION TROUBLESHOOTING2213
Code No.57 Lateral G sensor systemAssumed cause of concern
At 10kph or over, with ABS and brakes not applied, code No.
57 is output in cases where G sensor indicates higher than
specified value.• Harness, connector malfunction
• Longitudinal G sensor malfunction
• ABSECU malfunction
• 4WDECU malfunction
Remarks*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
MUTII/III Service data
• No.15 longitudinal sensor voltage
OK:P.2232 Refer to (Service Data List)*2
OK > Intermittent malfunction
Lateral G sensor check (refer to P.2220)
*2
NG > replace
Measurement at C38 4WDECU connector
•ECU terminal voltage measurement
• Ignition switch: ON
•Voltage between 11 – earth
OK:2.4 – 2.6V (when vehicle is standing on flat
ground)
Connector check:C38
NG > repair
MUTII/III Service data
•No.15 lateral sensor voltage
OK:P.2232 Refer to (Service Data List)*2
NG > Replace 4WDECU
OK > Intermittent malfunction
Connector check:C38, D31, C20, B109
C38, C20, D31 fitted vehicles> NG > repair
Check harness between lateral G sensor – 4WDECU
•Check to see if output wire is broken, earth, or
damaged
Check harness between lateral G sensor – ABSECU
• Check to see if output wire earth or damaged
NG > repair
MUTII/III Service data
•No.15 lateral G sensor voltage
OK:Refer to P.2232 (Service Data List)*2
NG > Refer to Group 35C – Troubleshooting*2
or replace 4WDECU
OK > intermittent malfunction
NG
NG
OK
OK
OK
OK
OK

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 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

GENERAL INFORMATION - DETAILS OF CHANGES0-3
Main circuit Name of circuit Page Details of change
J/C - p.3-2• Partial changes to circuit and
destination system names in J/C(1) —
(6)
-• With the introduction of manual air
conditioning, the circuit used by the
fusible link No.2 has been changed.
• Wastegate solenoid valve 2 added to
load of special fuse No.3.
• Rating of special fuse No.10 changed
from 15A to 20A.
Power supply - p.3-10• Partial changes to destination system
names.
• Earth No.13 added.
• Rating of special fuse No.10 changed
from 15A to 20A.
• Partial changes to circuit details, due
to removal of sunroof.
Engine control - p.3-16• Rating of special fuse No.10 changed
from 15A to 20A.
• Earth No.13 added.
• Some changes to circuit, due to
addition of wastegate solenoid valve
2 (B-32).
• Partial changes, due to removal of
DVD-MMCS
Lighting Interior lights, boot interior
light, ignition key cylinder
illumination light, door not
closed indicator light-• Change to terminal number in J/C(2)
(C-119) on line linking ETACS and
diagnosis connector. (No.1 " No.5)
Reversing lights -• Change to terminal number in J/C(2)
(C-119) on line linking reversing light
and rear combination light (LH).
(No.18 " No.19)Signal
Stop lights p.3-24• Spare connector (F-28) added, and
circuit partially changed.
Meters / Gauges -Meters
Remaining fuel warning
light, oil pressure warning
light, brake warning light,
seatbelt warning light-• Change to terminal number in J/C(1)
(C-07) on line inking J/B (general fuse
No.18) and combination meter. (No.4
" No.8)
• Change to terminal number in J/C(4)
(C-110) on line linking combination
meter and fuel gauge unit (sub).
(No.20 " No.21)
Door opening
controlElectric windows -• Change to terminal number in J/C(2)
(C-119) on line linking power window
main switch and diagnosis connector.
(No.12 " No.14)
Fully automatic air
conditioning-• Change to terminal number in J/C(1)
(C-07) on line linking J/B (general
fuse No. 18) and A/C-ECU. (No.6 "
No.4)
• Change to terminal number in J/C(5)
(C-06) on line linking A/C-ECU and
diagnosis connector. (No.8 " No.9)Air
conditioning
Manual air conditioning p.3-26• With the adoption of manual air
conditioning, a new circuit has been
installed.
Windscreen wipers and
washers-Safety and
visibility
Electric retractable remote
control door mirrors-• Change to terminal number in J/C(2)
(C-119) on line linking ETACS and
diagnosis connector. (No.1 " No.5)
Circuit diagrams
M3000004500157

GENERAL INFORMATION - LIST OF CIRCUIT DIAGRAMS0-5
Main circuit Name of Circuit Circuit Diagram
J/B -!
J/C -#
Central junction -#
Power supply -#
Start up -!
Ignition -!
Charging -!
Engine control -#
Coolant -!
Headlights (excluding discharge type)!
Headlight (discharge type)!
Tail lights, side lights, licence plate lights, lighting monitor
warning buzzer!
Cabin lights, boot interior light, ignition key cylinder
illumination light, door not closed indicator light *2!
Fog lights!
Lighting
Headlight levelling system
!
Indicator lights, hazard warning lights!
Reversing lights *2!
Stop lights#
Signalling
Horn
!
Meters / Gauges *2!Meters
Remaining fuel warning light, oil pressure warning light,
brake warning light, seatbelt warning light *2
!
Electric windows *2!
Central door locking (vehicle not fitted with keyless entry)!
Door opening control
Central door locking (vehicle fitted with keyless entry)
!
Heater!
Fully automatic air conditioning!
Air conditioning
Manual air conditioning
#
List of Circuit Diagrams
M3000006000169
Notes:
1. This list of circuit diagrams indicates whether each circuit has been modified or added.
2. The “●” symbol indicates a circuit that has been modified or added. Diagrams for these circuits are included in
this supplement.
3. The “


” symbol indicates a circuit that is unchanged. Details of these circuits can be found in the existing
Electrical Wiring Diagram manual (’03-1 No.1036K77).
4. The “X” symbol indicates a circuit that is unrelated to the vehicle referred to in this manual.
5. The “*1” symbol marks circuits whose names have been changed the previous names.
6. The “*2” symbol marks circuits whose J/C terminal numbers have changed. For more information, please refer
to the “Details of Changes” table above.