85
03/05
SPIDER MAX 500
B
H.T. coil
Stepper motor
Pump relay
Fan relay
Signal panel
• •
RAM memory
Errors 2/3 A M
Lost synchronisations 1D 0
Lost synchronisations > 1D 0
TPS reset
NO
CO already calibrated
NO
R/O step diff.
53
Atmospheric pressure mmHg 774.4
Parameters
3/3
In order to check the sensor and the sensor circuit proceed as follows:
Connect the diagnostic multimeter. Start the engine.
The engine started regularly.
Select the menu from the ”ERRORS” function.
Check the “signal panel” for anomalies.
The engine does not start.
Select the menu from the ”ERRORS”
function.
No anomaly
detected.
Carry out the
intervention
required by the
detected
anomaly.
Select the menu from the ”PARAMETERS” function.
Check the number of:
Lost synchronisations = 1 tooth
Lost synchronisations = > 1 tooth
Indication = 1÷3
The Rpm/speed signal is
normal.
The value
progressively
increases, insisting on
the engine start-up.
Check the circuit and
the sensor.
