HOSE AS 3247599 - Caterpillar

Table 1
Switch Contact Status    
Switch State Power Train ECM Connector, Contact Number     Switch Contact     Wire No.     Status    
Enabled     J1-24 N/C (1)     N/C     G749-YL     G (2)    
J1-20 N/O (3) N/O     G748-PU     O (4)    
Locked     J1-24 N/C     N/C     G749-YL     O    
J1-20 N/O N/O     G748-PU     G    
( 1 ) N/C = Normally Closed.
( 2 ) G = Grounded to ECM Ground
( 3 ) N/O = Normally Open
( 4 ) O = Open (no continuity to ground).Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear the diagnostic codes when the original diagnostic code is corrected. Note: Ensure that the diagnostic code is active and that the diagnostic code indicator is active.Test 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 J1-16 (wire 202-BK) of the machine harness for the ECM and contact 2 (wire 202-BK) at the switch.Expected Result:The resistance is less than 5 ohms. Results:
OK