Perkins 1106D Troubleshooting Manual page 170

170
Troubleshooting Section
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. To 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).
Expected Result:
The IVS switch operates between the "Idle Validation
Min OFF Threshold" and the "Idle Validation Max ON
Threshold" parameters. Use the Perkins EST in order
to view the parameters of the IVS switch.
Results:
•
OK – The IVS switch operates within the "Idle
Validation Min OFF Threshold" and the "Idle
Validation Max ON Threshold" parameters. Use
the Perkins EST in order to view the parameters of
the IVS switch. STOP.
•
Not OK – The IVS switch cannot operate within the
"Idle Validation Min OFF Threshold" and the "Idle
Validation Max ON Threshold" parameters. Use
the Perkins EST in order to view the parameters
of the IVS switch.
Repair:
Proceed to Test Step 7.
Test Step 3. Inspect Electrical Connectors
and the Harness
A. Inspect the P1/J1 connector, the harness and
all of the connectors for the IVS. Refer to
Troubleshooting, "Electrical Connectors - Inspect"
for details.
B. Perform a 45 N (10 lb) pull test on each of the
wires in the ECM connector that are associated
with the suspect analog throttle switch:
•
P1:35
•
P1:44
•
P1:45
C. Check the screw for the ECM connector for the
correct torque of 5.0 N·m (44 lb in).
D. Check the harness for abrasion and pinch points
from the analog throttle switch to the ECM.
Expected Result:
All connectors, pins and sockets are completely
coupled and/or inserted and the harness is free of
corrosion, abrasion and pinch points.
Results:
•
OK – Proceed to Test Step 4.
•
Not OK
Repair: Perform the following repair:
Repair the connectors or the harness and/or
replace the connectors or the harness. Ensure that
all of the seals are correctly in place and ensure
that the connectors are completely coupled.
Verify that the repair eliminates the fault.
STOP.
Test Step 4. Check the Location of the
Fault
A. Disconnect the IVS harness connector.
B. Install a jumper wire between the IVS connections
on the harness.
C. Turn the keyswitch to the ON position.
D. Install a jumper wire between the IVS connections
on the harness. Use the Perkins EST in order to
check for diagnostic codes.
E. Remove the jumper wire that is between the IVS
connections on the harness. Use the Perkins EST
in order to check for diagnostic codes.
Expected Result:
Connect the jumper wire. The IVS state on the
Perkins EST throttle status screen will display the
ON position.
Disconnect the jumper wire. The IVS state on the
Perkins EST throttle status screen will display the
OFF position.
SENR9982