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7B-32 Air Conditioning System: DTC Troubleshooting NOTE
Step Action Yes No 1 Evaporator temperature sensor signal circuit check with ignition switch turned OFF. 2) Check for proper connection to evaporator temperature sensor at “WHT/BLK” and “BLK/RED” wire terminals. 3) If OK, measure voltage between “WHT/BLK” wire terminal of evaporator temperature sensor connector Is voltage 4 – 6 V? Go to Step 5. Go to Step 2. 2 Evaporator temperature sensor signal circuit check ignition switch turned OFF. 2) Check for proper connection to HVAC control module connector at “G52-19” and “G52-13” terminals. 3) If OK, measure resistance between “WHT/BLK” wire terminal of evaporator temperature sensor connector Is resistance below 5 Ω ? Go to Step 3. “WHT/BLK” wire open 3 Evaporator temperature sensor signal circuit check of evaporator temperature sensor connector and vehicle Is resistance infinity? Go to Step 4. “WHT/BLK” wire 4 Evaporator temperature sensor signal circuit check evaporator temperature sensor connector and vehicle Is voltage 0 V? Go to Step 5. “WHT/BLK” wire 5 Evaporator temperature sensor ground circuit check switch turned OFF. 2) Measure resistance between “BLK/RED” wire terminal of evaporator temperature sensor connector and vehicle Is resistance below 5 Ω ? Go to Step 7. Go to Step 6. 6 Evaporator temperature sensor ground circuit check control module connector and vehicle body ground. Is resistance below 5 Ω ? “BLK/RED” wire open or HVAC control module 7 Evaporator temperature sensor check Evaporator Temperature Sensor Inspection”. Is it in good condition? HVAC control module Evaporator temperature |