I've noticed a change in the appearance of my tach and speedometer at starup. At ignition, there is a red light that flashes once or twice on the upper part of the tach, which appears to briefly illuminate the numbers 2 & 6. The digital display of the tach then lights up first, while the same display on the speedometer gradually illuminates over a few seconds. Otherwise, the needles of the gauges move to the ends and back as they normally do, and the gauges go through their normal sequence of checks. Both gauges otherwise function normally. Battery voltage from engine data ( Etec 150 H.O.) is unchanged at 12.6V. Any thoughts as to a reason for this abrubt change ? Thanks.
Thanks for your reply. I went back and checked and did not see any code on LCD screen. It is also strange that the speedometer does not start to illuminate until tach is completely lit.