Does the ECM control the air conditioner?
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Engine coolant temperature sensor (ECT) and,ECM air conditioner compressor control.
If the coolant temperature rises to a predetermined level, the ECM will disengage the compressor clutch. This helps an overheating engine by allowing the condenser to cool down and by removing the mechanical load of driving the compressor.
Tags: AC compressor controlled by ECM, Air conditioner electronic systems, ECM protection device