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1996 Mercury GM instrument cluster
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mercuryman
User
May 25, 2014, 2:46 AM
Post #1 of 21
(1849 views)
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1996 Mercury GM instrument cluster
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My speedometer, and odometer both stopped working.
Before I go to the junk yard for another instrument panel. I want to know where the wires connect to on the other end from the panel to where?
I use my GPS speedometer, but to get my car emission inspected for registration, the odometer must be working.
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Hammer Time
Ultimate Carjunky
/ Moderator
May 25, 2014, 3:52 AM
Post #2 of 21
(1836 views)
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Re: 1996 Mercury GM instrument cluster
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How did you even come to the conclusion that the cluster was your problem? There are other components that play a part in the speed signal like the VSS and related wiring.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Hammer Time
Ultimate Carjunky
/ Moderator
May 25, 2014, 4:16 AM
Post #4 of 21
(1830 views)
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Re: 1996 Mercury GM instrument cluster
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You've shared some real idiotic thoughts here in the past so I'm just going to let you go with your Internet research and not waste my effort here.
Maybe you destroyed the cluster when you ingeniously decided to remove the check engine light bulb to fix your 0/2 and Cat problem
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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mercuryman
User
May 25, 2014, 5:02 AM
Post #5 of 21
(1825 views)
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Re: 1996 Mercury GM instrument cluster
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Hammer:
I removed the check eng bulb , cause it distracted me while driving. I had that checked out at Adv auto, and it was a oyg sensor.
I still have the same car with 285,000 MILES.I must be taken good care of it for it to be running so good.
Now, I moved to a state that requires emission testing, but will not test a car that has a faulty odometer. I will check the VSS sensor today, and see what happens.
Bty, I am over 50, and have met many auto mechanics through the years, and all are different, and fix things in their own personnel way. I want to get an emission paper to get it registered in a new state.
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kev2
Veteran
May 25, 2014, 6:19 AM
Post #6 of 21
(1815 views)
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Re: 1996 Mercury GM instrument cluster
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Scan again and post ALL codes.
How does the odometer not work- not lighting up?
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kev2
Veteran
May 25, 2014, 7:40 AM
Post #8 of 21
(1805 views)
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Re: 1996 Mercury GM instrument cluster
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What are ALL the codes?
I do NOT understand the relationship emission testing to mileage- I do not think the system has a code for that. What state?
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Hammer Time
Ultimate Carjunky
/ Moderator
May 25, 2014, 8:06 AM
Post #9 of 21
(1803 views)
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Re: 1996 Mercury GM instrument cluster
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I would think a speedometer would have a lot to do with a safety inspection. Just because he referred to it as emissions testing doesn't mean that's all it really is.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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mercuryman
User
May 25, 2014, 8:29 AM
Post #10 of 21
(1801 views)
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Re: 1996 Mercury GM instrument cluster
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The emissions test is in Connecticut, and on the emissions site it says what type of cars can be turned away for testing, and cars without working odometer is one of the laws.
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mercuryman
User
May 31, 2014, 6:03 AM
Post #12 of 21
(1742 views)
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Re: 1996 Mercury GM instrument cluster
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I got another cluster at the junk yard, and the CEL
went off, but the odometer, and speedometer still don't work. I replaced the speed sensor this morning, but it still did not work. I was lucky to get a refund on it, cause its considered an electrical part.
How can I find, or check the wiring, or harness if it has one.
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Discretesignals
Ultimate Carjunky
/ Moderator
May 31, 2014, 7:01 AM
Post #13 of 21
(1737 views)
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Re: 1996 Mercury GM instrument cluster
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Does the cruise control work? Do you have any vehicle speed sensor related trouble codes stored in the engine computer?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Discretesignals
Ultimate Carjunky
/ Moderator
May 31, 2014, 7:36 AM
Post #15 of 21
(1732 views)
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Re: 1996 Mercury GM instrument cluster
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Should be able to. If there is a code for VSS signal loss, it is a good bet the speed sensor signal isn't reaching the engine computer, cruise control, or the instrument cluster.
Can't remember if the gear that drives the VSS gear is plastic, but you could inspect the drive gear in the transmission to be sure it isn't missing, damaged, or spinning on the shaft.
If all is good with that, you'll have to do some voltage checks using your volt meter at different parts of the VSS circuit.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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mercuryman
User
May 31, 2014, 5:30 PM
Post #16 of 21
(1720 views)
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Re: 1996 Mercury GM instrument cluster
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I took out the VSS today, and the green plastic gear was in good shape with no defects.
I will bring it to the auto store tommorow, and see what codes they come up with. Maybe a wire got disconnected when I replaced the heater core awhile back. Thanks for your help. I will post again when I get more info.
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mercuryman
User
Jun 1, 2014, 11:52 PM
Post #17 of 21
(1702 views)
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Re: 1996 Mercury GM instrument cluster
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I took my car to Auto store yesterday, and they will only check the codes if the CEL is on. I am going to check out the wires today.
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mercuryman
User
Jun 2, 2014, 6:37 AM
Post #18 of 21
(1692 views)
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Re: 1996 Mercury GM instrument cluster
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I went to another auto store today, and they checked my car with the meter, and found nothing. Does the cable that goes into the side of the transmission that
has the speed sensor on one end go through the
firewall then into the back of the instument cluster.
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Discretesignals
Ultimate Carjunky
/ Moderator
Jun 3, 2014, 12:20 PM
Post #19 of 21
(1671 views)
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Re: 1996 Mercury GM instrument cluster
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The speedometer is not cable driven on your vehicle. You may be mistaking the shifter cable for a speedo cable.
The VSS is an electrical generator. You need to have someone with a scope or graphing meter check the VSS signal. The signal the sensor generates is an AC voltage signal. They need to figure out if the VSS is sending a signal out and if it is reaching the instrument cluster. Damaged wiring or wiring that is shorted or grounded out can keep the signal from reaching the speedo, PCM, and the cruise control system.
The sensor's AC voltage amplitude and frequency gets higher and shorter as the vehicle's speed increases. Around 40 mph you should be seeing closed to around 7 volts amplitude.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jun 3, 2014, 12:22 PM)
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mercuryman
User
Jun 6, 2014, 4:06 AM
Post #20 of 21
(1649 views)
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Re: 1996 Mercury GM instrument cluster
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I took my car to the repair shop today, and it was a bad wire running from the cluster to the fuse box. Both the odometer, and speedometer are working again.
Thanks for all your replies, and help. I would rather get the car repaired, then get another car payment.
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Discretesignals
Ultimate Carjunky
/ Moderator
Jun 6, 2014, 4:13 AM
Post #21 of 21
(1647 views)
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Re: 1996 Mercury GM instrument cluster
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Glad to read that you got it figured out and repaired. Thanks for the follow up as this may help others in the future.  Closed as solved. Can be reopened upon request.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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