(Table 196, contd)
Troubleshooting Test Steps
Values Results
5. Check the Wiring for an Open Circuit
A. Turn the keyswitch to the OFF position.
B. Disconnect the P2 connector and the connector for the sus-
pect valve.
C. For the EBPR, use a multimeter to check the resistance be-
tween terminal 4 on the valve connector and P2:41.
D. For the EBPR, use a multimeter to check the resistance be-
tween terminal 6 on the valve connector and P2:49.
E. For the NRS valve, use a multimeter to check the resist-
ance between terminal 4 on the valve connector and P2:4.
F. For the NRS valve, use a multimeter to check the resistance
between terminal 6 on the valve connector and P2:3.
G. Reconnect the connectors.
Less than 2 Ohms Result: All measured resistances are less than 2 Ohms.
Contact the Dealer Solutions Network (DSN).
Result: One or more of the measured resistances is great-
er than 2 Ohms. There is a fault in the wiring.
Repair: Repair the valve connector or replace the wiring
harness.
Use the electronic service tool to clear all logged diagnostic
codes and then verify that the repair eliminates the fault.
6. Create an Open Circuit at the Valve Connector
A. Turn the keyswitch to the OFF position.
B. Disconnect the connector for the suspect valve to create an
open circuit.
C. Turn the keyswitch to the ON position. Check for active di-
agnostic codes on the electronic service tool. Wait at least 30
seconds in order for the codes to be displayed.
Diagnostic codes Result: A -5 diagnostic code is now active. There is a short
in the valve.
Repair: Reconnect the valve.
Check for active diagnostic codes on the electronic service
tool. Wait at least 30 seconds in order for the codes to be
displayed.
If the -6 diagnostic code returns, then replace the valve. Re-
fer to Disassembly and Assembly for the correct procedure.
Use the electronic service tool to clear all logged diagnostic
codes and verify that the repair eliminates the fault.
Result: There is still a -6 diagnostic code.
Proceed to Test Step 7.
7. Check the Wiring for a Short Circuit
A. Turn the keyswitch to the OFF position.
B. Disconnect the P2 connector and the connector for the sus-
pect valve.
C. For the EBPR, use a multimeter to check the resistance be-
tween P2:41 and all other terminals on the P2 connector.
D. For the EBPR, use a multimeter to check the resistance be-
tween P2:49 and all other terminals on the P2 connector.
E. For the NRS valve, use a multimeter to check the resist-
ance between P2:4 and all other terminals on the P2
connector.
Greater than 1 k
Ohm
Result: All measured resistances are greater than 1 k
Ohm.
Contact the Dealer Solutions Network (DSN).
Result: One or more of the measured resistances is less
than 1 k Ohm. There is a fault in the wiring.
Repair: Repair the valve connector or replace the wiring
harness.
Use the electronic service tool to clear all logged diagnostic
codes and then verify that the repair eliminates the fault.
If the fault has not been eliminated, contact the Dealer Sol-
utions Network (DSN).
(continued)
360 UENR4469-36
Circuit Tests
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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