STRIKER AS 2142964 - Caterpillar

This diagnostic code is associated with the Rocker Switch (Implement Lockout). The switch is connected to two inputs of the ECM. One contact is open and the other contact is grounded during proper operation. This FMI 03 means that the ECM has determined that the normally open contact and the normally closed contact are open.Note: The following test procedure may create other diagnostic codes. Ignore these diagnostic codes and clear the diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 0490 FMI 03 is active before performing this procedure.System Response:The implements will not work.
Table 1
Switch Continuity
Switch / CID Switch
State Implement ECM
Connector Contact Number Switch Contact Wire Number Status
CID 0490 Implement Lockout Switch Not Locked J1-13 "N/O"(1) "N/O" E917-WH(White) O(2)
J1-14 "N/C"(3) "N/C" E918-GN(Green) G(4)
Locked J1-13 "N/O" "N/O" E917-WH(White) G
J1-14 "N/C" "N/C" E918-GN(Green) O
(1) Normally Open Position
(2) Open
(3) Normally Closed Position
(4) GroundedTest Step 1. CHECK THE GROUND CIRCUIT OF THE SWITCH IN THE HARNESS
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness connector(s) from the ECM.
Measure the resistance between contact J1-15 (wire 299-BK(Black)) of the machine harness for the ECM and contact 2 (wire 299-BK(Black)) at the switch. Expected Result:The resistance is less than 5 ohms. Results:
OK - The resistance is less than 5 ohms. The circuit is correct.