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EVC-160 < DTC/CIRCUIT DIAGNOSIS > P0AA0 SYSTEM MAIN RELAY
Touching high voltage components without using the appropriate protective equipment will cause electrocution. CAUTION: For voltage measurements, use a tester which can measure to 500 V or higher. >> GO TO 4. 4. CHECK ELECTRIC COMPRESSOR 1. Disconnect electric compressor high voltage harness connector. 2. Check the short circuit between electric compressor terminals. With heat pump system Without heat pump system Is the inspection result normal? YES >> GO TO 5. NO >> Replace electric compressor. And then, GO TO 9. Refer to HA-37, "Removal and Installation" (With heat pump system) or HA-95, "Removal and Installation" 5. CHECK PTC HEATER 1. Disconnect Li-ion battery harness connector (H19). 2. Check the short circuit between Li-ion battery terminals. With heat pump system Without heat pump system Is the inspection result normal? YES >> GO TO 6. NO >> Replace PTC heater. And then, GO TO 9. Refer to HAC-198, "Removal and Installation" [(Auto A/ C (with heat pump)] or HAC-359, "Removal and Installation" [(Auto A/C (without heat pump)]. 6. CHECK HIGH VOLTAGE HARNESS-1 Standard : 5 V or less Electric compressor Resistance + − Terminal 1 2 3 k Ω or more Electric compressor Resistance + − Terminal 1 3 3 k Ω or more Connected to: Li-ion battery Resistance Connector + − Terminal PTC heater H19 40 41 3 k Ω or more Connected to: Li-ion battery Resistance Connector + − Terminal PTC heater H19 40 41 3 k Ω or more |