P1606

Spooler · 01-19-2020, 11:36 PM

Quote:

Originally Posted by SteveSAS

Check the power to the control module itself with a 12v 50w light globe. Compare light brightness with just connecting to battery.

That is a bad idea. He needs to use a VOM meter. A light will light up and mislead you. Seen some horror stories of that in my technician days. One guy had to go to court over it for a misdiagnoses.

SouthArk370Z · 01-20-2020, 08:27 AM

Quote:

Originally Posted by Spooler

That is a bad idea. He needs to use a VOM meter. A light will light up and mislead you. Seen some horror stories of that in my technician days. One guy had to go to court over it for a misdiagnoses.

While it may not be the best method to check for high resistance wiring, it is not a bad way to do it. As with any other test procedure, one needs to be able to interpret the results properly. The "light test" is not perfect (a marginal wiring problem may not cause enough change for eyes to notice) but works well for finding higher resistance wiring problems.

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