BAR-BREAKER 2147326 - Caterpillar

Table 1
Troubleshooting Steps Values Results
1. Identify and Correct the Open
A. Identify the connectors and wire numbers of the suspect circuits(1).
B. Turn off the keyswitch and the disconnect switch.
C. Disconnect the component and ECM from the harness.
D. At one of the disconnected harness connections, place a jumper wire from the suspect wire contact to frame ground.
E. At the other connector of the harness, use multimeter probes and measure the resistance from the suspect wire contact to frame ground.
Resistance is < 5 Ω
OK - Resistance is < 5 Ω.
The harness is not open.
STOP
Not OK - Resistance is ≥ 5 Ω.
The harness is open.
Repair:
Repair or replace the harness.
STOP
(1) See the machine Electrical Schematic