Mitsubishi Lancer Evolution IX. Manual — part 546
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-57
STEP 4. Connector check: C-36 A/C-ECU
connector and C-141 photo sensor connector.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair or replace the connector.
STEP 5. Check the wiring harness between C-141
photo sensor connector (terminal 1, 2) and C-36
A/C-ECU connector (terminal 19, 9).
• Check the photo sensor signal lines for open or
short circuit.
Q: Is the check result normal?
YES :
Replace the Photo sensor.
NO :
Repair the wiring harness.
AC504641AE
Connectors: C-36, C-141 <LHD>
Harness side
C-36
C-141
C-141
C-36 (B)
AC504618AJ
Connector: C-36 <RHD>
Harness side
C-36 (B)
AC504625AG
Connector: C-141 <RHD>
Harness side
AC504641AE
Connectors: C-36, C-141 <LHD>
Harness side
C-36
C-141
C-141
C-36 (B)
AC504618AJ
Connector: C-36 <RHD>
Harness side
C-36 (B)
AC504625AG
Connector: C-141 <RHD>
Harness side
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-58
Inspection Procedure 7: The outside/inside air changeover is impossible.
COMMENTS ON TROUBLE SYMPTOM
When inside air cannot be changed to outside air
vice versa even if its changeover switch is on, the
outside/inside air selection damper control motor
system may be defective.
PROBABLE CAUSES
• Malfunction of the outside/inside air selection
damper control motor
• Damaged the wiring harness or connectors
• Malfunction of the automatic A/C control panel
(A/C-ECU)
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-II/III actuator test
Carry out the actuator test. (Refer to
)
• Item 13, 14: outside/inside air selection damper
control motor
Q: Does the blower motor work normally?
YES :
Replace the automatic A/C control panel
(A/C-ECU)
NO :
Go to Step 2.
Outside/Inside Air Selection Damper Control Motor Circuit
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple
A/C-ECU
IGNITION
SWITCH (IG2)
MOTOR DRIVE
CIRCUIT
OUTSIDE/INSIDE AIR
SELECTION DAMPER
CONTROL MOTOR
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-59
STEP 2. Measure the voltage at C-07
outside/inside air selection damper control motor
connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Turn the ignition switch to the ON position.
(3) Measure the voltage between terminal 7 and
body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 3.
STEP 3. Connector check: C-07 outside/inside air
selection damper control motor connector
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the connector.
AC504617AK
Connector: C-07 <LHD>
Harness side
AC504618AO
Connector: C-07 <RHD>
Harness side
AC301541KD
Connector C-07
(Harness side)
AC504617AK
Connector: C-07 <LHD>
Harness side
AC504618AO
Connector: C-07 <RHD>
Harness side
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-60
STEP 4. Check the wiring harness between C-07
outside/inside air selection damper control motor
connector terminal No.7 and the ignition switch
(IG2).
NOTE:
AC504701AB
Connectors: C-07, C-10 <LHD>
Harness side
C-07
C-10
C-07
C-10
AC504624AF
Connectors: C-07, C-10 <RHD>
Harness side
C-07
C-07
C-10
C-10
AC504622AI
Connector: C-101 <LHD>
C-101 (L)
AC504625AF
Connector: C-101 <RHD>
C-101 (L)
AC504633AF
Connectors: C-210, C-211 <LHD>
Harness side
Junction block (Front view)
C-210
C-211
C-211
C-210
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст