Speedo keeps going on and off - Toyota Yaris Forums

petefozzy · 02-08-2013, 10:29 AM

Thanks for the reply it is a digital diplay on a 1999 yaris.

CTScott · 02-08-2013, 10:37 AM

Quote:

Originally Posted by petefozzy

Thanks for the reply it is a digital diplay on a 1999 yaris.

OK. With the digital one, it could be a problem with the VFD (Vacuum Fluorescent Display) or its driving circuitry.

The pictures below show the inside of a 2006-2011 one, but I suspect that the first gen one is similar. The speedometer portion of the display is connected to the main circuit board via a ribbon cable. The cable connection may be loose causing the intermittent behavior.

You can pull the trim off around the instrument cluster to then remove the assembly.

Digital Cluster - Open.jpg

Digital Cluster - Connector.jpg

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02-08-2013, 10:29 AM	#1
petefozzy Drives: Yaris Join Date: Jan 2011 Location: united kingdom Posts: 17	Thanks for the reply it is a digital diplay on a 1999 yaris.