3239126 - 1056BF Check efficiency of hot film air flow meter

Make sure that the ignition is in the OFF position, then disconnect the negative battery terminal (refer to op.   5530B10  battery - r+r ). Disconnect the electrical connection from the hot film air flow meter.

NameConnector
-Air flow meter  K41 
Chck the air flow meter curve by measuring the voltage between pins 3 and 5 in accordance with the air flow rate.
1, Air temperature sensor 2, 14 Volt supply 3, Earth 4, 5 Volt reference voltage 5, Output voltage (signal)
Check that the nominal resistance of the hot film air flow meter corresonds to the recommended value.

MeasurementValue
-Nominal resistance (ohm)Pin 1-32000 +/- 5%
at 25°C ()-