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BAFFLE KT 4646816 - Caterpillar



4646816 BAFFLE KT Caterpillar parts BAFFLE
Rating:
21
Alternative (cross code) number:
CA4646816
464-6816
4646816
Caterpillar 4646816 BAFFLE KT

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the keyswitch to the ON position.
Observe the "Active Diagnostic" screen on Cat ET. Wait at least 30 seconds so that any codes may become active.
Turn the keyswitch to the START position.
Observe the "Active Diagnostic" screen on Cat ET. Wait at least 30 seconds so that any codes may become active.
Turn the keyswitch to the OFF position. Remove the jumper wire from the connector for the start relay. Connect the connector. Expected Result:There is an active 444-06 diagnostic code.Results:
OK - A 444-06 code became active when the wires were short circuited at the connector for the start relay.Repair: The wiring between the start relay and the ECM is OK. The open circuit is in the relay. Replace the start relay. Clear any diagnostic codes. Verify that the problem is resolved.STOP
Not OK - A 444-05 code remained active when the wires were short circuited at the connector for the start relay. Proceed to Test Step 4.Test Step 4. Create a Short Circuit at the ECM
Turn the keyswitch to the OFF position.
Disconnect the J1/P1 ECM connectors.
Fabricate a jumper wire that is long enough to connect across the terminals at the ECM connector. Crimp connector sockets to each end of the jumper wire.
Remove terminal P1-10 (start relay) and terminal P1-67 (start relay return) from the ECM connector. Install the jumper wire into the terminal locations for the start relay.
Connect the J1/P1 ECM connectors.
Turn the keyswitch to the ON position.
Observe the "Active Diagnostic" screen on Cat ET. Wait at least 30 seconds so that any codes may become active.
Turn the keyswitch to the START position.
Observe the "Active Diagnostic" screen on Cat ET. Wait at least 30 seconds so that any codes may become active.
Turn the keyswitch to the OFF position.
Remove the wire jumper. Return all wiring to the original configuration. Expected Result:There is an active 444-06 diagnostic code.Results:
OK - A 444-06 became active when the jumper was installed at the ECM connector. The ECM is operating correctly.Repair: There is an open circuit in the harness between the ECM connector and the connector for the start relay. Repair the circuit or replace the harness. Verify that the problem is resolved.STOP
Not OK - A 444-05 remained active when the jumper was installed at the ECM connector.Repair: Replace the ECM. Refer to Troubleshooting, "Replacing the ECM" for the correct procedure. Verify that the problem is resolved.STOPTest Step 5. Create an Open Circuit at the Harness Connector for the Start Relay
Turn the keyswitch to the OFF position.
Disconnect the connector for the start relay.
Turn the keyswitch to the ON position.
Observe the "Active Diagnostic" screen on Cat ET. Wait at least 30 seconds so that any codes may become active.
Turn the keyswitch to the START position.
Observe the "Active Diagnostic" screen on Cat ET. Wait at least 30 seconds so that any codes may become active.
Turn the keyswitch to the OFF position. Connect the connector for the start relay. Expected Result:There is an active 444-05 diagnostic code.Results:
OK - A 444-05 became active when the connector for the start relay was

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