What exactly does this mean?

[imjoesnuffy]

Copied from the gnttype.org trouble shooting guide.

Step #3 - Booster Motor does not run.

Confirm that the 30 Amp fuse is OK or replace. Then conduct electrical circuit checks. Disconnect the pressure switch and motor electrical connector and test to the following:

A. Pressure Switch (Ohmmeter)
1. All switch terminals should have continuity with each other. If not, replace switch.


I am not much on electrical diagnostics, but I have checked all 3 terminals with my ohmeter and I can't get any reading at all with key on, engine off. Red wire tester, black to ground. Same thing for the connector plug in that connects to the switch.

When I place the tester between each terminal, it goes to 0.00 on all 3 quickly. On the plug connector, center 12 volts, 0 on one and -5.63 on the other.

Thanks

 

[zeus87gn]

1. All switch terminals should have continuity with each other

...if the system is pmped down.
0.00 ohms means no resistance or correct continuity.
Sounds like you switch may be Ok.

The negative voltage may be an issue.
I will check at lunch and get back to you.

 

[imjoesnuffy]

Thanks Zeus87GN, I got it running again. It was the accumulator ball. I was just unsure of what continuity meant in that context.

 

[zeus87gn]