Question about 2005 Chevrolet Cavalier

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Trouble with instrument cluster and cruise control/lights

Last December, my analogue gas gage quit registering correctly. It sat on empty for about a week, then jumped to half a tank (even though I had added no fuel). After it moved to half, it would not reset to empty when the ignition was switched off. When I cranked the car again, the gage jumped to full. The next time I cranked the car, the gage went on past full, half way on around. I thought the trouble might be some water in the lines, so I added a fuel treatment. No success. Eventually the gage worked its way back down to empty, but it hasn't worked as it should since. Soon after, and only on colder nights, my speedometer would not register. After about twenty minutes of interstate driving, I have to make a series of stops. The speedometer usually begins to work after these stops. Strangely, letting the car sit and idle for five or so minutes has no effect. Next, my headlights began to jump from regular low beam to the default Daytime Running Lights. From time to time, the service light will come on. It always goes back out when the ignition is turned off. The problem with this is that I work at night and when the service light comes on, the headlights will go out if only the DRL are on. Neither of these problems occur if the high beams are on. The next problem I noticed was that when I signal to the left, the cruise control (if in use) will switch off. This does not happen on a right turn signal. Now my engine temperature gage is not working. It will not reset when the car is turned off. It has now gone past the temperature redline almost all the way around. All of the problems began or only occurred on cold or rainy nights. However, all of the electronic warning lights and the tachometer still work. Any ideas? I don't want to take this to a dealership and either get ripped a new one for them to replace a simple relay that I don't know about, or buy an all new panel only to find that this does not fix the problem.

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  • scarson_drag Nov 28, 2008

    I would greatly appreciate any help. I got pissed that not 30 minutes passed between me posting my problem and me getting an e-mail stating that if I needed a solution I could pay for it. I have already checked my fuses.

    Thanks

  • scarson_drag Nov 28, 2008

    I would greatly appreciate any help you could give me. I have already checked the fuses and they are good.

  • Anonymous Jan 22, 2009

    does chevy cavalier has a default with there tail light

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What kind of a rip off is this? We can help fix your problem for free, but if you really want a solution you're going to have to ante up $10 plus. And, by the way, if you fixed it without our help, how about telling us how you did it so that we can charge the next unfortunate soul with the same problem for the information you have provided us free of charge. Really, FixYa, THANKS FOR THE HELP.

Posted on Nov 19, 2008

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Need to know what to do about this

Posted on Nov 23, 2008

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My 2004 Pontiac grand am se1 acts like door is open and interior light stays on also does t lock on its own when in gear and lights don't blink and horn not honk when locking with key bob


Door ajar switch problem more then likely or wiring issue . The BCM - body control module won't turn off interior light , let door lock because it think's the door is open . The door ajar switch is a input to the BCM .

The first thing would be to have it checked for DTC'S - diagnostic trouble codes . Also check with an enhanced scan tool to see if the BCM shows ajar switch data (open or closed ? Do you know about body electronics ?
Body Control Module
The various BCM input and output circuits are described in the corresponding functional areas indicated on the BCM electrical schematics. The Body Control Module functions include the following:
?€¢
A/C compressor request. Refer to Air Temperature Description and Operation


?€¢
Remote Function Control. Refer to Keyless Entry System Description and Operation


?€¢
A/C cooling Fan. Refer to Air Delivery Description and Operation


?€¢
Audio Delay Power. Refer to Radio/Audio System Description and Operation


?€¢
Exterior and interior lighting control. Refer to Exterior Lighting Systems Description and Operation


-
Daytime running lights (DRL)


-
Automatic lighting control


-
Fog lamps


?€¢
Interior lighting. Refer to Interior Lighting Systems Description and Operation


?€¢
Battery rundown protection (Inadvertent Power). Refer to Interior Lighting Systems Description and Operation


?€¢
Chimes. Refer to Audible Warnings Description and Operation


-
Key-In-Ignition


-
Head Lamps On


-
Seat Belt Not Fastened


-
Turn Signal On


-
Park Brake Warning


-
Door Ajar Warning


-
Check gages


?€¢
Gage control. Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console.


?€¢
Instrument cluster indicator control. Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console.


?€¢
Theft deterrent. Refer to Theft Systems Description and Operation .


?€¢
Engine coolant level sensing. Refer to Cooling System Description and Operation .


?€¢
Washer solvent level sensing. Refer to Wiper/Washer System Description and Operation in Wipers/Washer Systems.


?€¢
Key-in-ignition sensing. Refer to Audible Warnings Description and Operation in Instrument Panel, Gages, and Console.


?€¢
Seat belt use sensing. Refer to Seat Belt System Description and Operation .


?€¢
Brake fluid level sensing.


?€¢
Parking brake state sensing.


?€¢
Rear compartment interface. Refer to Power Door Locks Description and Operation


?€¢
Horn interface.


?€¢
Door lock interface. Refer to Power Door Locks Description and Operation


?€¢
Bulb Check. Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console.

Oct 24, 2016 | 2004 Pontiac Grand Am

1 Answer

On a 99 grand am the gas gauge allways reads empty what is the color is the ground wire for the gas gauge


It's not the ground wire , the gauge grounds inside the instrument cluster .Your sending unit or the gauge it's self is bad .
Body Control System Operation
The Body Control Module (BCM) performs the following functions:
?€¢
Gauge control


?€¢
Instrument cluster indicator control


?€¢
Fuel gauge control


?€¢
Temperature gauge control


?€¢
Theft deterrent


?€¢
A/C compressor request


?€¢
A/C cooling fan


?€¢
Exterior and interior lighting control for the following lamps:


-
Daytime Running Lights (DRL)


-
Automatic lighting control


-
Fog lamps


-
Interior lighting


?€¢
Battery rundown


?€¢
Chime


Gauge Control
The Body Control Module (BCM) receives Class 2 serial data messages from the Powertrain Control Module (PCM) to determine the following gauge information:
?€¢
Engine coolant temperature


?€¢
Fuel level sensing


Your best bet is to take your vehicle to a qualified repair shop !
Fuel Gage Inaccurate or Inoperative

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Select the PCM display DTCs function on the scan tool.
Does the scan tool display any DTCs?
--
YES - Go to Diagnostic Trouble Code (DTC) List (2.4L) or Diagnostic Trouble Code (DTC) List (3.4L) in Engine Controls
NO - Go to Step 3

3

With the scan tool, select Instrument Panel Cluster, Special Functions and command the fuel gauge UP.
Does the fuel gauge complete a full sweep when commanded?
--
YES - Go to Step 4
NO - Go to Step 12
  1. Turn OFF the ignition.
  2. Disconnect the fuel level sender.
  3. Connect the J 33431-C Signal Generator and Instrument Panel Tester between the signal circuit of the fuel level sender and the ground circuit of the fuel level sender.
  4. Turn ON the ignition, with the engine OFF.
  5. Important: Verify the J 33431-C resistance setting with a DMM.
  6. Set the resistance on the J 33431-C to 40 ohms.
Does the fuel gauge display at or below empty?
--
YES - Go to Step 5
NO - Go to Step 6

Jul 28, 2016 | Pontiac Grand Am Cars & Trucks

1 Answer

All my gauges just quit working. car still runs fine. they done this 2 or 3 times but would always start again. this time have not come back on. turn signals and dash lights work just no gauges.


At the moment, your instrument cluster maybe faulty? Due the basic tests, try to be sure. Check for applicable trouble codes relating to instrument cluster--pcm--communication codes. Some of the national brand auto stores in this country may check codes for free, if there are any.
Check voltage and ground circuits for the instrument cluster. The sending units for gages are wired to pcm then the pcm sends serial data to instrument cluster telling instrument cluster what to do with gages. If you want to check gage sending units, that's ok.

If you have a scanner that can communicate with instrument cluster, you can get instrument cluster to do a self-test. The self-test, the instrument cluster will turn warning lamps on and off, sweep gages w/o outside data input. The instrument is considered good, if it passes that test, if not, the instrument cluster is considered faulty.

Apr 28, 2016 | 2002 Pontiac Bonneville

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Gags not working buick lacrosse 2006 3.6


I can tell you how instrument cluster works, but, I can't diagnose it from here.
The sending unit for any gage sends signal to pcm, the pcm then sends serial data to the instrument cluster to control gages. Some of the gages will default to zero if the pcm detects problem with sending unit or wiring, or the instrument cluster detects a problem with serial data from pcm.
Check for applicable trouble codes, see if codes point in any particular direction. Some of the national brand auto stores will check codes for free, if there are any. You can check voltage and ground for instrument cluster, just to make sure that is ok. I can't rule out the instrument cluster, itself.

Mar 19, 2016 | 2006 Buick LaCrosse CXS

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I have a 2001 Pontiac grand am gauges don't work or the fog lights and the daytime lights don't work and the door locks don't lock when u put it in drive it all started when the fuel pump


As far as instrument cluster gages, The pcm receives a signal from specific sender unit. The pcm then sends serial data to instrument for that gage setting. As an example, the fuel level gage defaults to empty if the pcm detects a problem with sending unit or wiring. Also defaults to empty if ipc detects a problem with serial data circuit from pcm.

Can you check for applicable trouble codes? Some of the national brand auto stores will check codes for free.

If you want to check voltage and ground for instrument cluster, go ahead.
Usually with multiple issues, I just pick one and troubleshoot it. Fixing one, may or may not fix the others.

Nov 30, 2015 | Pontiac Cars & Trucks

1 Answer

Gas gage dont work


It sounds like your Instrument Cluster has decided not to work. you can find a replacement Instrument Cluster at your Local Auto Recycling Facility (Junk Yard) for $30 for a STratus or you can go to

www.car-part.com and put in your year, make, model and order one by Distance or Price.

Apr 08, 2013 | 2001 Dodge Stratus

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I have a 2001 Dodge Ram 3500 4X4, w/5 spd tranny. I am having trouble with my HVAC controls (they quit working and only hot air comes out), and also the instrument cluster. Periodically I lose the tach...


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All gages in instrument cluster and cruise control just quit working. Checked all fuses in box underhood and at left end of dashboard, all ok


SOUND LIKE THE IGNITION SWITCH IS OPEN.IT FEEDS POWER TO PCM AND INSTRUMENT CLUSTER THEN TO CRUISE CONTROL AND OTHER CIRCUITS.IF THE IGNITION FUSE IS GOOD IT HAS TO BE THE SWITCH OR A BROKEN WIRE.

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My check gage light is on what do i do help!!!!!!!!!!


A "check gage light" typically indicates a faulty reading on one of the gages located on your instrument cluster. After starting your vehicle, observe your instrument cluster if one of the indicator needles on the instrument cluster remains all the way to the left or "pegs" out all the way to the right, it may be the cause of your fault. The exception is the coolant temperature gage it will take 10 to 15 minutes after which the needle should rise to a normal position. Correcting the "faulty gage light" will depend on which gage is malfunctioning. Once you have figured out which gage is causing the check gage light to illuminate, then we can proceed to correcting the problem causing it.

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