Mitsubishi Lancer Evolution IX. Manual — part 581
![](/vehicles/winoney/wruvea/ger/hodso.png)
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-7
TROUBLESHOOTING <ACD>
TROUBLESHOOTING STRATEGY
M1221007000604
Refer to GROUP 00 - How to Use Troubleshoot-
ing/Inspection Service Points
.
NOTE: Before starting the troubleshooting proce-
dure, make sure that the following items have been
checked okay.
• Is the appropriate steering wheel installed at the
centre of the steering column shaft correctly?
• Are the tyre, wheel size, specifications, air pres-
sure, balance, and wear state normal?
• Is the wheel alignment normal?
• Has the engine, suspension, etc. been remod-
eled in such a way that it will affect the ACD and
AYC systems?
DIAGNOSIS FUNCTION
M1221007700012
ACD MODE INDICATOR LAMP SYSTEM
If a malfunction occurs in the ACD, all of the ACD
mode indicator lamps (tarmac, gravel, and snow) will
illuminate.
If all of the ACD mode indicator lamps (tarmac,
gravel, and snow) are illuminating, check for diagno-
sis code.
METHOD OF READING THE DIAGNOSIS
CODE
Use the M.U.T.-II/III to read the diagnosis code.
(Refer to GROUP 00
− How to Use Troubleshoot-
ing/Inspection Service Points
).
METHOD OF ERASING THE DIAGNOSIS
CODE
Use the M.U.T.-II/III to erase the diagnosis code.
(Refer to GROUP 00
− How to Use Troubleshoot-
ing/Inspection Service Points
).
AC311095AB
ACD mode indicator lamp
![](/vehicles/winoney/wruvea/ger/placor.png)
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-8
INSPECTION CHART FOR DIAGNOSIS
CODES
M1221007800019
Diagnosis
code No.
Diagnosis items
Reference page
12
Power supply voltage (valve power
supply) system
open circuit or short circuit
13
Fail-safe relay system (inside
4WD-ECU)
open circuit or short circuit
21
Wheel speed sensor system <FR>
open circuit or short circuit
22
Wheel speed sensor system <FL>
open circuit or short circuit
23
Wheel speed sensor system <RR>
open circuit or short circuit
24
Wheel speed sensor system <RL>
open circuit or short circuit
25
Wrong-diameter tyre
26
Wheel speed sensor system
faulty output signal
31
Steering wheel sensor system <ST-1,
ST-2, ST-N>
open circuit or short circuit
32
Steering wheel sensor system <ST-N> short circuit
33
fixed
34
Steering wheel sensor system <ST-1,
ST-2>
short circuit or output fixed
41
TPS system
open circuit or short circuit
42
short circuit
45
Pressure sensor system
open circuit or short circuit
46
open earth
47
abnormal power supply
51
Longitudinal G-sensor system
open circuit or short circuit
52
abnormal sensor
56
Lateral G-sensor system
open circuit or short circuit
57
abnormal sensor
61
Stop lamp switch system
open circuit
62
ACD mode switch system
stuck
63
Parking brake switch system
short circuit or not returned
to original position
65
ABS monitor system
open circuit or defective
ABS
71
Proportional valve system <AYC>
open circuit or short circuit
Refer to GROUP 27
−
Diagnostic Trouble
Code Chart
72
Directional control valve system
<Right>
open circuit or short circuit
Refer to GROUP 27
−
Diagnostic Trouble
Code Chart
![](/vehicles/winoney/wruvea/ger/pitoveroumy.png)
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-9
NOTE: Code No.85 is not a code number set due to
malfunction, but a code number output when control
for the 4WD-ECU to protect the ACD is stopped in
excessive driving. ACD control can be recovered by
turning the ignition switch ON to OFF to ON.
DIAGNOSIS TROUBLE CODE PROCEDURES
Code No.12 Power supply voltage (valve power supply) system
73
Directional control valve system <Left> open circuit or short circuit
Refer to GROUP 27
−
Diagnostic Trouble
Code Chart
74
Proportional valve system <ACD>
open circuit or short circuit
81
Electric pump relay system
open circuit or short circuit
82
electric pump malfunction
or pressure sensor defect
84
AYC control error
Refer to GROUP 27
−
Diagnostic Trouble
Code Chart
85
ACD control error
−
Diagnosis
code No.
Diagnosis items
Reference page
IGNITION
SWITCH (IG2)
4WD-ECU
POWER
SOURCE
Power supply circuit <LH drive vehicles>
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
![](/vehicles/winoney/wruvea/ger/omo.png)
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-10
OPERATION
The 4WD-ECU (terminal 13) is energized through
the fuse by the ignition switch (IG2).
DIAGNOSIS CODE SET CONDITIONS
The power supply circuit opens or short-circuits if the
power supply voltage of the 4WD-ECU is below 9 V
or above 18 V.
Or code No.12 is set when the battery voltage drops.
PROBABLE CAUSES
• Damaged harness wires and connectors
• Malfunction of the battery
• Malfunction of the 4WD-ECU
IGNITION
SWITCH (IG2)
4WD-ECU
POWER
SOURCE
Power supply circuit <RH drive vehicles>
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст