HVAC 28 CIRCUIT INSPECTION: Disconnect the blower 2 pole connector (refer on vehicle rear AC removal process for location and access) and measure the current at the harness side connecter at 3 speeds by pressing the rear blower switch. The current measurement should as per the table below. SWITCH PWM OUPUT (DUTY CYCLE) % BLOWER VOLTAGE (V) OFF 100 0 1 68 5 2 54 7 3 40 9 K. REAR BLOWER CONTROLLER The rear blower switch controller controls the rear blower speed according to the inputs given by the rear blower switch LOCATION: Rear blower controller switch is mounted on rear ac unit. PIN OUT
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