I have a Hj61 Altimeter 24 V. LIghts converted to 12VDC LED. Temperature display currently not working.
Harness, both sun visors (short), 12VDC to 24VDC converter and 1Kohm thermistors included with sale.
$275.00 plus shipping. Prefer to sell together.
@YooperCruiser, glad it worked out. I was going to buy a harness but will probably go this route (You learn a lot more about how your truck operates).
So, the schematic is correct ?