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HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–109 Troubleshooting With Self-Diagnosis Function Overview of Self-Diagnosis Function The self-diagnosis is implemented in 3 steps for each For turning on the self-diagnosis function and switching Self-Diagnosis Operation Procedure Step Action Value(s) Yes No 1 1. Set the IG to the OFF position. 2. Apply 60W bulb light to the solar radiation sensor. 3. Set the temperature setting lever on the automatic heater/air conditioner panel to the center position ° C). 4. Set the fan switch on the same panel to the Auto position. Is the action complete? — Go to Step 2 — 2 While holding both the Auto switch and the DEF — Go to Step 3 — 3 Does the A/C LED flash every 0.5 second interval? — Go to Step 4 Refer to *1. 4 Press the A/C switch once. — Go to Step 5 Refer to *2. 5 Refer to *3 chart “Check of Output Equipment". — Go to Step 6 Repair or replace the output equipment or repair the harness 6 Press the DEF switch for 5 seconds consecutively or — Go to Step 1 — |