[55B] AUTOMATIC AIR CONDITIONER - - TROUBLESHOOTING - SYMPTOM PROCEDURES - INSPECTION PROCEDURE 6: When sunlight intensity changes, air outlet temperature does not Change. | PRINT PAGE / INDEX / PRIOR / NEXT

INSPECTION PROCEDURE 6: When sunlight intensity changes, air outlet temperature does not Change.
CIRCUIT OPERATION When the blower air temperature can not be changed even if the preset temperature is changed, the sensors may be defective.
TROUBLESHOOTING HINTS Malfunction of the photo sensor Damaged the wiring harness or connectors Malfunction of the A/C-ECU
| DIAGNOSIS
| Step 1. Check the rear window defogger and outside/inside air selection damper control motor operation. Q: Do the rear window defogger and outside/inside air selection damper control motor work normally? YES: Go to Step 2. NO: Refer to Inspection procedure 10 "Malfunction of the A/C-ECU power supply system ."
| Step 2. Use the MUT-II/III to confirm a diagnosis code. On completion, check that the diagnosis code is not reset. Q: Is the check result normal? YES: Go to Step 3. NO: Carry the diagnosis code procedures. Refer to .
| Step 3. MUT-II/III data list. Item 14: Photo sensor OK: Check that the volume of insolation takes inverse proportion with the MUT-II displayed voltage. Q: Is the check result normal? YES: Replace the automatic air conditioner control panel (A/C-ECU). NO: Go to Step 4.
| Step 4. Connector check: A/C-ECU connector C-27 and photo sensor connector C-123. Q: Is the check result normal? YES: Go to Step 5. NO: Repair or replace the connector.
| Step 5. Check the wiring harness between photo sensor connector C-123 (terminal 1, 2) and A/C-ECU connector C-27 (terminal 19, 9). Q: Is the check result normal? YES: Replace the Photo sensor. NO: Repair the wiring harness.

[55B] AUTOMATIC AIR CONDITIONER - - TROUBLESHOOTING - SYMPTOM PROCEDURES - INSPECTION PROCEDURE 6: When sunlight intensity changes, air outlet temperature does not Change. | PRINT PAGE / INDEX / PRIOR / NEXT

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