Jump to content

Cluster Lights On With No Reason


Csosz74

Recommended Posts

Hey guys,

I have an 1990 LS400 with 255xxx miles in it.

Just today some lights came out on my cluster. Oil temp, handbrake (footbrake), rear lights, coolant temp, battery (or alt)

No reason for these things, I checked every fluid, all's fine.

Just read another topic about it to check the wiring at the left side trunk hinge. No visible problem found, no cracks or opening on the wires.

I have a nice leak from the power steering pump, slow but steady. Can this leak cause any problem at my check lights?

Also, a few months ago the yellow rear light indicator came out on the cluster, but after a while it went away.

Thanks for any ideas...

Link to comment
Share on other sites


Is the problem fixed now? I would suspect if you had a faulty alternator you'd have many other symptoms like not being able to start the car, lights dimming, blower motors slower. If you have a digital voltmeter (DVM) measure battery voltage (at the battery) with engine running and as many electrical items turned on as possible (high beams, rear window defrost, A/C and blower motor on max, seat heat, audio system cranked.....

If alternator is faulty you should see something less than 13V on the battery.

Link to comment
Share on other sites

Is the problem fixed now? I would suspect if you had a faulty alternator you'd have many other symptoms like not being able to start the car, lights dimming, blower motors slower. If you have a digital voltmeter (DVM) measure battery voltage (at the battery) with engine running and as many electrical items turned on as possible (high beams, rear window defrost, A/C and blower motor on max, seat heat, audio system cranked.....

If alternator is faulty you should see something less than 13V on the battery.

Yes, both the alt and the PS pump have been replaced. 590$ total. Now it works fine. the problem came out on Thursday when going to work. Then I disconnected the battery for the day and I could go home. For Friday, the battery was KO.

I had to recharge to get to the mechanic.

Thanks all

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...

Forums


News


Membership