voltage drop, Gryphon resetting?

[Jackpine]

Originally Posted by OneTomcat

If the Gryphon shuts off and comes back on (with hex code showing) while running at highway speeds, is that an indication of weak battery as well, or do I have other issues?

This sounds to me like a power interruption to the Gryphon. Maybe you have poor connections at the OBDII port or in the cable where it plugs into the Gryphon. Have you checked that these are both secure? Maybe you could kind of unplug and replug both connectors with the power off to "burnish" the contacts and then, before plugging the cable back into the OBDII port, turn the ignition ON so that the unit will reinitialize properly?

I'm assuming here that your alternator and battery are both good. What do you see on the Gryphon when you monitor charging voltage? I see something in the neighborhood of 14.1 volts when driving during the day and not towing my trailer with its two additional batteries (that drag the voltage down).

- Jack