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REAR AIR CONDITIONING DIAGNOSIS TSB Revision HEATER, AIR CONDITIONING AND VENTILATION 55A-75 DIAGNOSIS STEP 1. Check the rear blower relay continuity. Q: Is the rear blower relay continuity in good condition? YES : Go to Step 2. should operate normally. STEP 2. Check the rear fan switch. Q: Is the check result normal? YES : Go to Step 3. STEP 3. Check the rear fan control switch. Q: Is the check result normal? YES : Go to Step 4. BATTERY VOLTAGE TESTER SPECIFIED Not applied 4 − 5 Open circuit • Connect terminal 1 to the positive • Connect terminal 3 to the negative 4 − 5 Less than 2 ohms AC002644AB REAR BLOWER RELAY REAR FAN TESTER SPECIFIED OFF 8 − 9 Less than 2 ohms ON (while pushing) 2 − 8 Less than 2 ohms AC205161 1 2 10 11 5 13 6 14 12 4 9 3 REAR FAN TESTER SPECIFIED OFF 1 − 2 Less than 2 ohms ON 2 − 5 Less than 2 ohms AC001045 AB |