LINK-TRACK MASTER 2504248 - Caterpillar

Illustration 1 g02797019
Schematic of the Implement Shutoff SwitchThis diagnostic code is for the implement shutoff switch.The implement shutoff switch has two inputs for the ECM. The inputs are Normally Open or Normally Closed. During normal operation, one of the inputs is open and the other input is grounded. A failure is detected when the Normally Open input and the Normally Closed input are in the same state. This diagnostic code is recorded when the Normally Open input and the Normally Closed input are in the same state. The possible causes of the problem are listed below:
There is an Open wire between E913-YL and the ECM.
There is an Open wire or a grounded wire between E912-PU and the ECM.
The implement shutoff switch has failed.
The ECM has failed. ECM failure is unlikely. Test Step 1. CHECK THE NORMALLY CLOSED CIRCUIT FOR PROPER OPERATION.
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness from the ECM.
At machine harness connector J1, measure the resistance from contact 46 to contact 57. Expected Result:With the parking brake switch in the ON