Mitsubishi Lancer Evolution IX. Manual — part 589
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-39
STEP 7. Connectors check: B-03 throttle position
sensor connector, C-26 4WD-ECU connector,
C-105 J/C (6).
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Repair the defective connector.
AC311020
Sensor side
B-03 (B)
AC
Connector: B-03
<LH drive vehicles>
<RH drive vehicles>
B-03 (B)
B-03
AC311002
4WD-ECU
Harness side
C-26 (Y)
AC
Connector: C-26
4WD-ECU
C-26 (Y)
Rear console
assembly
<LH drive vehicles>
<RH drive vehicles>
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-40
STEP 8. Check the harness between throttle
position sensor connector B-03 terminal No.2
and 4WD-ECU connector C-26 terminal No.39.
Check the output line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the wiring harness.
AC311020
Sensor side
B-03 (B)
AC
Connector: B-03
<LH drive vehicles>
<RH drive vehicles>
B-03 (B)
B-03
AC311002
4WD-ECU
Harness side
C-26 (Y)
AC
Connector: C-26
4WD-ECU
C-26 (Y)
Rear console
assembly
<LH drive vehicles>
<RH drive vehicles>
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-41
Code No.45 Pressure sensor system (open circuit or short circuit)
PRESSURE
SENSOR
4WD-ECU
Pressure sensor system 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
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-42
OPERATION
The 4WD-ECU receives accumulator pressure infor-
mation from the pressure sensor to control the elec-
tric pump.
DIAGNOSIS CODE SET CONDITIONS
Code No.45 is set when the output signal from the
pressure sensor is below 0.2 V.
PROBABLE CAUSES
• Malfunction of the pressure sensor
• Damaged harness wires and connectors
• Malfunction of the 4WD-ECU
DIAGNOSIS
STEP 1. M.U.T.-II/III data list
Item 18: Pressure sensor (Refer to data list reference
table
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Cope with Intermittent
).
NO :
Go to Step 2.
STEP 2. Measure the voltage at 4WD-ECU
connector C-26.
(1) Turn the ignition switch to the ON position.
PRESSURE
SENSOR
4WD-ECU
Pressure sensor system 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
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