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2019 Toyota Highlander Hybrid Limited – A/C Stops Cooling When Engine Runs
CUSTOMER CONCERN The air conditioning blows cold with the gasoline engine off but stops cooling when the engine runs. CAUSE The confirmed repair identified lost air-conditioning servomotor initialization as the cause of the temperature-control problem. CORRECTION Perform the air-conditioning servomotor initialization with the scan tool and verify cold air is maintained with the gasoline engine both off and running.
2018 Ford Fusion SE Hybrid – A/C Inoperative With P0073
CUSTOMER CONCERN After front-end collision repair, the air conditioning does not operate, DTC P0073 is stored, and ambient-temperature data remains fixed at 69°F with a 5-volt signal. CAUSE Rodent damage behind the front bumper chewed through the wiring harness leading to the ambient-air-temperature sensor. CORRECTION Repair the damaged ambient-air-temperature sensor wiring behind the front bumper, clear DTC P0073, and verify the temperature signal changes normally and A/C op
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