VALVE GP-CONTROL 1946757 - Caterpillar

to the appropriate system or the schematics of the engine harness if a troubleshooting procedure instructs the user to "Analyze and Repair the Harnessing".Continuity checks and resistance checks should be performed at the connector locations in order to locate a failure in the harness. At a component connector, always check the ground circuit. Less than five ohms of resistance is required from the ground contacts to frame ground. A problem can be incorrectly diagnosed if resistance is greater than 5 ohms in the ground circuit.During a troubleshooting procedure, inspect all component and harness connections before a component is replaced. If these connections are not clean and tight, the connection can cause an electrical problem.A problem can be persistent or intermittent. Ensure that the wires are pushed into the connectors completely. Make sure that the connections are tight before other tests are performed. A failure of a connection of one electrical component can cause the failure of another electrical component. Always attempt to find a failure of a connection. Correct the failed connection before replacing a component.