Just got this code. Did not go to failsafe, but had very little power. I'll check battery . what does this code indicate ........Thanks to anyone who has info on this problem!

 

Let me google that for you

 

Cute! How did you do that? I need that!

 

Let me google that for you

 

Turns out, I remenbered the Ultra Guage was unplugged and then plugged in again by the guy at Motor Vehicle, during the inspection. ( while the car was running). I had forgotten about that, as the car didn't start flashing all sorts of electrical warnings, until the next day. All glitches have gone away since I removed the gauge, and cleared the p1642 code. Not sure I want to use the Ultra Guage again? But anyway, thanks for listening!,,

 

I never have a problem with either of my cars, can plugin while running. Have you selected 'Force protocol 9141'?

 

Hi, RJ..........When I plug it in, the gauge will scan and discover '9141',, but this is the 2nd time, it has caused glitches, and I'm a little hesitant, until I start being concerned about not knowing the water temperature, and then I'll plug the guage in again

 

This should help

Link http://jagrepair.com/images/AutoRepa...J27%201999.pdf

 

That's your problem mick, you have to force the 9141 protocol. Scroll down the menu and you will find the protocol selections.