106 12/04
SPIDER MAX 500
B
F. 92
Measure the voltage across the testing wiring PIN 1 and PIN 22.
PIN 1 - PIN 22 = 5 V ± 0,2
Check the connection to the central unit.
Replace the central unit, if necessary.
Connect the gas valve position sensor connector. Measure again the voltage across the
testing wiring PIN 1 and PIN 22.
PIN 1 - PIN 22 = 5 V ± 0,2
Measure the voltage across PIN 11 and PIN 22. Open the throttle valve
gradually and make sure that the voltage value increases gradually.
PIN 11 - PIN 22 = V (gradual increase).
NOTE - The limit voltage values may vary from ÷ 700mV, as min. value,
to more than 4V, as max. value. Any possible limit value change can be
generated by the sensor assembling tolerances.
Replace the throttle body the sensors and the
stepper motor.
F. 93
