That value varies depending "where you read." Bear in mind that value did not come from any Chrysler literature that I'm aware of. It came from guys measuring the dealer tester!!! And they likely vary as well!!
I agree with you Dart. I have seen references ranging from 73ohms to 75 ohms in different readings. I don't think it makes a huge difference in those two numbers.
To test my gauges, I set my power supply to 5volts and verified. My meter read 4.99 volts. I connected two 150 ohm resisters in parallel to make my hi resistance wire. When I test resistance in the test wire after assembling them, I get 74.8 ohms. When I test my gauges with that resister, I barely see the gauge move. I then put in the 23 (22.9 actual) ohm resister wire and the gauge goes to about midpoint. The 10ohm (9.8ohm actual) brings it to just over the max mark.
