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Engine Specific Info and Questions => IDI Engine => Topic started by: gunrtd on February 02, 2009, 11:21:58 am

Title: Gauges?
Post by: gunrtd on February 02, 2009, 11:21:58 am

All of the sudden, the tach and the speedo have gone limp. Completely dead. Happened at the same time so I figure it must be the power feeding the two?
Car is a 95 Jetta.
Any leads?

Title: Re: Gauges?
Post by: arb on February 02, 2009, 11:25:47 am

Quote from: "gunrtd"

All of the sudden, the tach and the speedo have gone limp. Completely dead. Happened at the same time so I figure it must be the power feeding the two?
Car is a 95 Jetta.
Any leads?

diesel viagra ?  LOL

The tach is powered from the w lead on the alternator, so separate power.  How are the others on the cluster ?

Title: Gauges?
Post by: gunrtd on February 02, 2009, 11:45:04 am

yeah, the coolant and the fuel work.

Title: Gauges?
Post by: arb on February 02, 2009, 11:49:26 am

Do you have a bently for the 95' ? Mine is for prior, so I can't trace the 2 gauges you have an issue with..

Title: Gauges?
Post by: vanbcguy on February 02, 2009, 12:19:22 pm

My '95 gas car had some problems like that when my ground was bad to the engine...

Even though the tach gets its signal from the W terminal, it still gets its power from the same place as the speedo!

Title: Gauges?
Post by: gunrtd on February 02, 2009, 06:13:52 pm

I figure it's power  -  but I checked all the fuses, and they all look good.

Title: Gauges?
Post by: Vincent Waldon on February 02, 2009, 07:15:24 pm

Most likely the cluster has packed it in... simultaneous speedo/tach disappearance is a common failure mode.

Search for "cluster" on the Golf/Jetta III forum on the Vortex and you'll read story after story.

Here's the pinout (sadly, all the wires are the same color :cry: ):

(http://i197.photobucket.com/albums/aa85/vwaldon/A3_cluster_pinout.jpg)

As you can see there's only one supply line (off the ignition switch), so if your other gauges and lights work you know that it's fine.

There *are* two grounds (pins 3 and 5), however, so might be worth checking.  Otherwise, there's probably a junkyard in your future.  :wink:

Title: Gauges?
Post by: gunrtd on February 03, 2009, 08:55:34 pm

The whole cluster!!!! Looks like I'll keep driving by brail. :(