Sensor Ground; Idle Validation - Perkins 1106D Troubleshooting Manual

SENR9982
Illustration 62
Typical view of the P1 OEM connector pin locations
(35) Sensor Ground (GND)
Test Step 1. Check the Operation of the
Idle Validation Switch (IVS)
A. Connect the Perkins EST to the diagnostic
connector.
B. Turn the keyswitch to the ON position.
C. Use the Perkins EST in order to check the current
"Throttle Configuration".
D. Select the "SERVICE" option from the drop-down
menu of the Perkins EST.
E. Select the "Throttle Configuration" option on
the Perkins EST. Select the appropriate analog
"Throttle Configuration" summary from the menu
on the left of the screen. The IVS window for the
throttle will indicate "YES" if an IVS is installed.
Make a note of the "Idle Validation Min OFF
Threshold" parameters that are displayed in the
"Throttle Configuration" menu of the Perkins
EST. Make a note of the "Idle Validation Max ON
Threshold" parameters that are displayed in the
"Throttle Configuration" menu of the Perkins EST.
F. Select the "Throttle status" function on the Perkins
EST. Select "Status" function and then select
"Throttles" function.
G. The throttle is set in the low idle position.
H. Depress the throttle pedal slowly. The IVS status
should change from CLOSED (ON) to OPEN
(OFF).
(44) Idle validation (IVS) 2
Expected Result:
The IVS state changes from CLOSED (ON) to OPEN
(OFF).
Results:
•
OK – The IVS state changes from CLOSED (ON)
to OPEN (OFF). Proceed to Test Step 2.
•
Not OK – The IVS does not operate.
Repair:
Proceed to Test Step 3.
Test Step 2. Check the Idle Validation
Switch (IVS) Threshold
A. Connect the Perkins EST to the diagnostic
B. Turn the keyswitch to the ON position.
C. Use the Perkins EST in order to check the current
D. Select the "SERVICE" option from the drop-down
(45) Idle validation (IVS) 1
connector.
"Throttle Configuration".
menu of the Perkins EST.
169
Troubleshooting Section
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