(Table 186, contd)
Troubleshooting Test Steps
Values Results
5. Check the Location of the Fault
A. Disconnect the IVS harness connector.
B. Fabricate a jumper wire.
C. Turn the keyswitch to the ON position.
D. Install a jumper wire between the IVS connections on the
harness. Use the electronic service tool in order to check for di-
agnostic codes.
E. Remove the jumper wire that is between the IVS connections
on the harness. Use the electronic service tool in order to check
for diagnostic codes.
IVS state on with
jumper installed.
IVS state off with
jumper removed.
Result: With the jumper wire connected, the electronic
service tool displays the IVS state in the ON position on
the throttle status screen. With the jumper wire discon-
nected, the electronic service tool displays the IVS state
in the OFF position on the throttle status screen.
Proceed to Test Step 8.
Result: The IVS status that is displayed on the elec-
tronic service tool does not change with the jumper wire
either removed or installed.
Proceed to Test Step 6.
6. Check the Wiring for an Open Circuit
A. Disconnect the IVS harness connector.
B. Disconnect the P1 connector.
C. If the fault is on IVS1, use a multimeter to check the resist-
ance between the IVS1 input terminal on the IVS harness con-
nector and P1:77.
D. If the fault is on IVS2, use a multimeter to check the resist-
ance between the IVS2 input terminal on the IVS harness con-
nector and P1:66.
E. Use a multimeter to check the resistance between the IVS1
output terminal on the applicable IVS harness connector and
P1:36.
Less than 2 Ohms Result: One or more of the measured resistances is
greater than 2 Ohms. There is an open circuit in the
wiring.
Repair: Repair the faulty wiring or replace the faulty
wiring.
Use the electronic service tool to clear all logged diag-
nostic codes and verify that the repair eliminates the
fault.
Result: The measured resistance in all wires is less
than two Ohms.
Proceed to Test Step 7.
7.Check the Wiring for a Short Circuit
A. Disconnect the P1 connector.
B. Disconnect both IVS harness connectors.
C. Use a multimeter to check the resistance between P1:75
and all other terminals on the P1 connector.
D. Use a multimeter to check the resistance between P1:66
and all other terminals on the P1 connector.
E. Use a multimeter to check the resistance between P1:36
and all other terminals on the P1 connector.
Greater than 1 k
Ohm
Result: One or more of the measured resistances is
less than 1 k Ohm. There is a short circuit in the wiring.
Repair: Repair the faulty wiring or replace the faulty
wiring.
Use the electronic service tool to clear all logged diag-
nostic codes and verify that the repair eliminates the
fault.
Result: All resistance measurements are greater than 1
k Ohm.
Contact the Dealer Solutions Network (DSN).
(continued)
UENR4469-36 339
Circuit Tests
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