Car Questions
RepairPal is your advocate for car care advice and guidance

More off than on,no heads up display. Defrost comes on. I want to know my speed.

(1992 Cadillac Seville STS)
in Snowflake, AZ on January 04, 2012
Please DO NOT tell me it's a groundng issue, unless you have specific areas for me to check. I have the wiring diagrams, and have even spliced into the ground wires from the display panel and the passenger side ecu (and ran directly to ground), I've replaced the alternator, reworked the grounding points on both sides of the nose of the car, replaced fuses (and the breakers... yes, breakers), and have wire brushed the power bar in the front power fuse and relay center, but still have the same issue. The display only works on start up, AFTER it has been parked on a slight up hill, and slight tilt to the right. To me, this makes it seem as though it's a power supply issue. It will then go out again once I start driving, or not.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
How can I open up the truck manually if the latch is broke?
Didn't find what you were looking for?