C4 91-96 digital odometer and tachometer issues

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Aug 10, 2023 | 01:52 PM

Quanched

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C4 91-96 digital odometer and tachometer issues

I've been having issues with the Digital odometer that displays speed and gas tank information. It glows but the LCD screen doesn't display anything. It worked intermittently for a while but now it has gone blank. I investigated the issue and put it back together and the LCD started to work for a little while but the tachometer is now choppy when it comes to reading. Currently, neither work even after I had installed a new LCD Ribbon cable and tachometer chip but neither has done anything. The same issue persists. I'd really rather not send the thing to batee because it's a bit pricy but I might have to. I've checked fuses, and the CCM, and both appeared to have no issues. Any advice and suggestions help.

Aug 10, 2023 | 02:06 PM

dash7510

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From: Boise, Id

I recommend checking out a site called batee.com. He goes over the displays and how to fix it. He even sells some kits to try to fix it yourself.

Aug 10, 2023 | 02:17 PM

Quanched

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They were the ones I got the part from and whose instructions I followed. Everything looks alright as far as I can see on the circuitry though.

Aug 10, 2023 | 02:33 PM

Techun

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Sounds like it may be the main connection for the dash. Do all of your bulbs work in the dash?

Aug 10, 2023 | 05:11 PM

Quanched

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Quote:

Originally Posted by Techun

Sounds like it may be the main connection for the dash. Do all of your bulbs work in the dash?

Yeah, all lights work. Contacted Batee, Got the Odometer working finally, tachometer is still off.

Aug 10, 2023 | 05:47 PM

Techun

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Quote:

Originally Posted by Quanched

Yeah, all lights work. Contacted Batee, Got the Odometer working finally, tachometer is still off.

What was your Odo/lcd issue? I'm taking mine apart this weekend for lcd flickering.

Aug 11, 2023 | 11:01 AM

Quanched

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Quote:

Originally Posted by Techun

What was your Odo/lcd issue? I'm taking mine apart this weekend for lcd flickering.

I believe it was a mix between the LCD ribbon cable and some of the soldered joints on the wiring harness.

Aug 14, 2023 | 11:49 AM

Techun

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Quote:

Originally Posted by Quanched

I believe it was a mix between the LCD ribbon cable and some of the soldered joints on the wiring harness.

For future people reading this-
I also just took my dash apart and saw no obvious issues. Replaced the ribbon cable with the battee part and put it back together. Seems to be fixed while parked, time will tell how it handles vibration.