Perkins NJ Series Troubleshooting Manual page 37

SENR9982-01
Illustration 19
Typical Range of Throttle
(1) Lower Diagnostic Limit (Default=5)
(2) Lower Position Limit (Default=10)
(3) Initial Lower Position (Default=20)
(4) Idle Validation Minimum Off Threshold (Default=21)
(5) Idle Validation Maximum On Threshold (Default=25)
(6) Lower Dead Zone % (Default=5)
(7) Upper Dead Zone % (Default=5)
(8) Initial Upper Position (Default=70)
(9) Upper Position Limit (Default=85)
(10) Upper Diagnostic Limit (Default=90)
PWM throttles require additional programming.
If a multi-position switch is selected, additional
parameters must be programmed. Refer to the
Troubleshooting Guide, "Multiposition Switch Setup".
If an analog throttle is selected, the following
parameters must be programmed into the ECM.
Idle Validation
All analog throttles on mobile applications require an
idle validation switch. If this parameter is programmed
to "Yes", the ECM will look for this switch input on pin
J1:P45 for Idle Validation Switch 1 (IVS1) and J1:P44
for Idle Validation Switch 2 (IVS2).
Table 17
Values
No
Yes
Idle Validation Minimum Off (Open)
Threshold
This is the minimum throttle percentage that will be
detected by the ECM when the IVS is ON (Closed).
g01264476
Default
Yes
If the ECM detects a throttle percentage below this
value with the idle validation switch OFF (Open),
a fault code will be generated and the engine will
remain at idle.
Refer to Table 18 and Table 19.
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Troubleshooting Section