Mitsubishi Lancer Evolution IX. Manual — part 607
![](/vehicles/winoney/wruvea/ger/uben.png)
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-111
STEP 3. Measure the resistance at electric pump
relay connector B-122.
Disconnect the electric pump relay connector, and
measure the resistance between terminal No.1 and
earth.
OK: 2
Ω or less
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Go to Step 4.
STEP 4. Connector check: B-122 electric pump
relay connector.
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the defective connector.
AC311020
Relay side
B-122
AD
Connector: B-122
<LH drive vehicles>
<RH drive vehicles>
B-122
B-122
AC311020
Relay side
B-122
AD
Connector: B-122
<LH drive vehicles>
<RH drive vehicles>
B-122
B-122
![](/vehicles/winoney/wruvea/ger/jofeybellllk.png)
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-112
STEP 5. Check the harness between electric
pump relay connector B-122 terminal No.1 and
earth.
Check the earth line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the wiring harness.
STEP 6. M.U.T.-II/III actuator test
Item 04: Electric pump drive
OK: Operating sound can be heard.
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Cope with Intermittent
NO :
Replace the 4WD-ECU.
STEP 7. Connectors check: B-122 electric pump
relay connector, C-25 4WD-ECU connector.
Check for the contact with terminals.
AC311020
Relay side
B-122
AD
Connector: B-122
<LH drive vehicles>
<RH drive vehicles>
B-122
B-122
AC311020
Relay side
B-122
AD
Connector: B-122
<LH drive vehicles>
<RH drive vehicles>
B-122
B-122
AC311002
4WD-ECU
Harness side
C-25 (Y)
AB
Connector: C-25
4WD-ECU
C-25 (Y)
Rear console
assembly
<LH drive vehicles>
<RH drive vehicles>
![](/vehicles/winoney/wruvea/ger/ndan.png)
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-113
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Repair the defective connector.
STEP 8. Check the harness between electric
pump relay connector B-122 terminal No.2 and
4WD-ECU connector C-25 terminal No.16.
Check the power supply line for short or open circuit.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the wiring harness.
Code No.82 Electric pump relay system (electric pump malfunction or pressure sensor defect)
ELECTRIC PUMP RELAY SYSTEM
CIRCUIT
Refer to
OPERATION
Refer to
DIAGNOSIS CODE SET CONDITIONS
Code No.82 is set when the pressure sensor does
not reach the specified value even if the 4WD-ECU
has output the electric pump motor drive command.
PROBABLE CAUSES
• Insufficient fluid
• Malfunction of the pressure sensor
• Malfunction of the electric pump relay
• Malfunction of the hydraulic unit
• Damaged harness wires and connectors
• Malfunction of the 4WD-ECU
AC311020
Relay side
B-122
AD
Connector: B-122
<LH drive vehicles>
<RH drive vehicles>
B-122
B-122
AC311002
4WD-ECU
Harness side
C-25 (Y)
AB
Connector: C-25
4WD-ECU
C-25 (Y)
Rear console
assembly
<LH drive vehicles>
<RH drive vehicles>
![](/vehicles/winoney/wruvea/ger/usn.png)
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-114
DIAGNOSIS
STEP 1. Check the fluid.
Check that the right amount of fluid is in the reservoir
tank.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Go to Step 2.
STEP 2. Check the fluid leaks.
Check that the fluid is not leaking.
Q: Is the check result normal?
YES :
Add the fluid.
NO :
Repair the leaking part and add the fluid.
STEP 3. M.U.T.-II/III diagnosis code
Q: Are diagnosis codes 45, 46, 47 set?
YES <diagnosis code 45 is set> :
Refer to
diagnosis code 45: Pressure sensor system
(open circuit or short circuit)
.
YES <diagnosis code 46 is set> :
Refer to
diagnosis code 46: Pressure sensor system
(open earth)
YES <diagnosis code 47 is set> :
Refer to
diagnosis code 47: Pressure sensor system
(abnormal power supply)
.
NO :
Go to Step 4.
STEP 4. M.U.T.-II/III diagnosis code
Q: Are diagnosis code 81 set?
YES :
Refer to diagnosis code 81: Electric pump
relay system
.
NO :
Go to Step 5.
STEP 5. M.U.T.-II/III actuator test
Item 04: Electric pump drive
OK: Operating sound can be heard.
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Cope with Intermittent
NO :
Go to Step 6.
STEP 6. Measure the voltage at electric pump
relay connector B-122.
Disconnect the electric pump relay connector, and
measure the voltage between terminal No.4 and
earth at the harness side.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 10.
NO :
Go to Step 7.
AC311020
Relay side
B-122
AD
Connector: B-122
<LH drive vehicles>
<RH drive vehicles>
B-122
B-122
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