I HAVE PURCHASED 3 INSTRUMENT CLUSTERS AND HAVE ...

1997 BMW 740

Tiny

Reeves1

October, 27, 2012 AT 2:31 PM

I have purchased 3 instrument clusters and have had basically the same issue with them.
1. When installed, the temperature gauge does not work but goes all the way to overheating.
2. The traction light comes on.
3. The RPM guage does not work.

What could be the problem?
Should the connection placement match as well?

5 Answers

Tiny

ASEMaster6371

October, 27, 2012 AT 2:34 PM

Your sender unit may be your issue with the temp gauge.

Trac light indicates a problem that needs to be checked.

The tach may be a bad signal from the pcm.

Get it checked by a shop to verify

Roy

Tiny

Reeves1

October, 27, 2012 AT 2:37 PM

No. The reason I am replacing the cluster is the readable display is pixelated

Tiny

rivermikerat

October, 31, 2012 AT 11:33 PM

Have it scanned for codes. That'll answer the trac question.

If the temp gauge in multiple displays is reading hot, either the engine is overheating, the sensor is bad, or the PCM is giving or getting bad signals.

Check the connections in the tach circuit.

Tiny

Dr. Hagerty

November, 1, 2012 AT 3:12 PM

Volvo? I see this posted in BMW land

Tiny

rivermikerat

November, 1, 2012 AT 3:14 PM

Doc, it seems to be a BMW 740. At least that's all I see.

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