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TROUBLESHOOTING HEATER, AIR CONDITIONER AND VENTILATION 55A-32 earth terminal 19. AC402679 Connector A-33 CL (4) Voltage between terminal 1 and body earth. OK: System voltage Q: Is the check result normal? YES : Go to Step 9. NO : Go to Step 3. STEP 3. Connector check: A-21X A/C AC502574 AC Connector: A-21X Harness side Q: Is the check result normal? YES : Go to Step 4. NO : Repair the connector. STEP 4. Check the A/C compressor relay . Q: Is the A/C compressor relay in good condition? YES : Go to Step 5. NO : Replace the A/C compressor relay. STEP 5. Voltage measurement at A-21X A/C AC502574 AC Connector: A-21X Harness side (1) Remove the relay, and measure at the junction block side. (2) Turn the ignition switch to the "ON" position. AC402679 Connector A-21X CM (3) Voltage between terminal 1 and body earth. OK: System voltage Q: Is the check result normal? YES : Go to Step 7. NO : Go to Step 6. |