[55A] HEATER, AIR CONDITIONER AND VENTILATION - - TROUBLESHOOTING - SYMPTOM PROCEDURES - INSPECTION PROCEDURE 2: Inside/Outside Air Selection is not possible.PRINT PAGE / INDEX / PRIOR / NEXT
INSPECTION PROCEDURE 2: Inside/Outside Air Selection is not possible.
COMMENTS ON TROUBLE SYMPTOM
If the inside/outside air selection damper motor does not operate normally, the inside/outside air selection damper motor system may be defective.
TROUBLESHOOTING HINTS
  • Malfunction of the inside/outside air selection damper motor
  • Damaged the wiring harness or connectors
  • Malfunction of the manual air conditioner control panel (A/C-ECU)
DIAGNOSIS
Step 1. Check the rear window defogger and A/C operations.
Q: Do the rear window defogger and A/C work normally?
YES:  Go to Step 2.
NO:  Refer to Inspection procedure 9 "Malfunction of the A/C-ECU power supply system ."
Step 2. Measure the voltage at C-311 outside/inside air selection damper control motor connector.
  1. Disconnect C-311 outside/inside air selection damper control motor connector, and measure the voltage at the harness side.
  1. Turn the ignition switch to the "ON" position.
  1. Measure the voltage between terminal 7 and earth.
    2. OK: System voltage
Q: Is the check result normal?
YES:  Go to Step 5.
NO:  Go to Step 3.
Step 3. Connector check: C-311 outside/inside air selection damper control motor connector
Q: Is the check result normal?
YES:  Go to Step 4.
NO:  Repair or replace the connector.
Step 4. Check the wiring harness between C-311 outside/inside air selection damper control motor connector (terminal 7) and the ignition switch (IG2).
NOTE: Prior to the wiring harness inspection, check intermediate connector C-10, junction block connectors C-205 and C-203, and repair if necessary.
Q: Is the check result normal?
YES:  The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
NO:  Repair the wiring harness.
Step 5. Check the outside/inside air selection damper control motor
Refer to .
Q: Is the check result normal?
YES:  Go to Step 6.
NO:  Replace the outside/inside air selection damper control motor.
Step 6. Connector check: C-311 outside/inside air selection damper control motor connector and C-06 A/C-ECU
Q: Is the check result normal?
YES:  Go to Step 7.
NO:  Repair or replace the connector.
Step 7. Check the wiring harness between C-311 outside/inside air selection damper control motor connector (terminals 6 and 4) and C-06 A/C-ECU (terminals 2 and 3).
NOTE: Prior to the wiring harness inspection, check intermediate connector C-10, and repair if necessary.
Q: Is the check result normal?
YES:  Replace the manual air conditioner control panel (A/C-ECU).
NO:  Repair the wiring harness.
[55A] HEATER, AIR CONDITIONER AND VENTILATION - - TROUBLESHOOTING - SYMPTOM PROCEDURES - INSPECTION PROCEDURE 2: Inside/Outside Air Selection is not possible.PRINT PAGE / INDEX / PRIOR / NEXT
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