Question about 1998 Chevrolet Camaro

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Gage Panel stops working when lights are on.

My camaro instrument panels lights stopped working and the display on the CD player stopped working randomly. It happens when my head lights are on but when they are off the the stuff comes back on. Im not sure if it is a breaker under the hood, a grounded wire, or a bad alternater. Im going to test the alternator tomorrow and see if that is the problem by pulling one of the cables off while it is running and seeing if it dies. Any help would be appreciated.

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Check to see if instrument panel light dimmer switch is turned DOWN. Hope this helps

Posted on May 18, 2009


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I have a 2003 GMC Yukon XL Denali that today all of the gauges went to zero and Odometer is out. The truck starts and drive Great.... What can cause this problem?

Only the gauges don't work ? All the warning lights come on when you turn on the key ? ABS , check engine, air bag etc... Have you had the vehicle to a repair shop to have the vehicle checked for DTC'S - diagnostic trouble codes stored in the instrument cluster ? There is a microprocessor inside the instrument cluster an can store DTC'S which have nothing to do with the check engine light . The gauges are controlled by that microprocessor based on information from the PCM ,sent on the class 2 serial data network .

Indicators and Warning Messages
Refer to Indicator/Warning Message Description and Operation .
Engine Coolant Temperature Gage
The instrument panel cluster (IPC) displays the engine coolant temperature as determined by the powertrain control module (PCM). The IPC receives a class 2 message from the PCM indicating the engine coolant temperature. The engine coolant temperature gage defaults to 75°C (160°F) or below when:
• The PCM detects a malfunction in the engine coolant temperature sensor circuit.
• The IPC detects a loss of class 2 communication with the PCM.
Engine Oil Pressure Gage
The instrument panel cluster (IPC) displays the engine oil pressure as determined by the powertrain control module (PCM). The IPC receives a class 2 message from the PCM indicating the engine oil pressure. The engine oil pressure gage defaults to 0 kPa (0 psi) or below if:
• The PCM detects a malfunction in the engine oil pressure sensor circuit.
• The IPC detects a loss of class 2 communications with the PCM.
Fuel Gage
The instrument panel cluster (IPC) displays the fuel level as determined by the powertrain control module (PCM). The IPC receives a class 2 message from the PCM indicating the fuel level percent. The fuel gage defaults to empty if:
• The PCM detects a malfunction in the fuel level sensor circuit.
• The IPC detects a loss of class 2 communications with the PCM.
When the fuel level is less than a pre-determined value, the low fuel indicator illuminates.
Reviewing the fuel system description will further explain how the system functions. Refer to:
• Fuel System Description in Engine Controls - 4.8L, 5.3L and 6.0L
• Fuel System Description in Engine Controls - 8.1L

There are also U codes , communication failure's DTC U1000 and U1255

Circuit Description
Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an identification number with at least one critical parameter within about five seconds of beginning serial data communication, DTC U1000 or U1255 is set. When more than one critical parameter does not have an identification number associated with it, the DTC will only be reported once. The class 2 serial data line on this vehicle is a ring/star configuration. The following modules communicate on the class 2 serial data line:
• The body control module (BCM)
• The digital audio broadcast (DAB) module
• The digital radio reciever
• The driver door module (DDM)
• The electronic brake control module (EBCM)
• The front passenger door module (FPDM)
• The HVAC control module
• The HVAC control module-rear auxilliary
• The inflatable restraint sensing and diagnostic module (SDM)
• The instrument panel cluster (IPC)
• The memory seat module (MSM)
• The powertrain control module (PCM)
• The radio
• The radio amplifier
• The rear seat audio (RSA) controller
• The rear seat entertainment (RSE) assembly w/U42
• The rear wheel steering control module
• The remote playback device-CD player w/U1S
• The suspension control module
• The transfer case shift control module
• The transmission control module (TCM) w/allison transmission
• The theft deterrent control module
• The vehicle communication interface module (VCIM) w/UE1

Your best bet would be to take it to a qualified repair shop .

Mar 23, 2017 | GMC Cars & Trucks

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Temperature Gage On The Instrument Panel Stopped Working

Need to know,year,make,model and engine size,

Aug 10, 2015 | Cars & Trucks

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Odometer and trip meter light has gone out but gage lights and rheostat still works

I have the same problem as bestdad2000.
on my 2001 Buick Century the odometer and trip meter do not light up, but the rest of the instument panel does?? I have been using the trip meter for trip milelage as my gas gage has stop working properly. Help!!

Jan 20, 2011 | 2001 Buick Century

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Instrument panel lighting has stopped working.

Fuse on back of gage cluster, and the dimmer switch on the gage cluster.

Apr 24, 2010 | 1993 Mercedes-Benz 190

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Instrument panel lights don't work

please advice, have you solved the problem? I have the same one on my Sebring. Many thanks.

Dec 19, 2009 | 2008 Chrysler Sebring Convertible

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The controls on my car radio (MP56) stopped working

the firmware in your cd player is fried, there are lots of good quality cd players out there for good prices

Nov 07, 2009 | Cars & Trucks

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My instrument panel on 1987 300ZX stopped working after a stereo was installed. It lights up but has nothing on the display and to make it worse the defrost doesn't turn off. Also the dome light stopped...

Its the connection to the power supply module that is connected to the intrument panel. Its about the size of a cigar box and is silver and is left of the stereo. you will need to remove the panel under the steering colum to access it. wiggle the harness that goes from the inatrument panel to this power supply module until you instrument panel works again. i don't have a permanent soution except to buy a new panel. I am dealing with the same problem.

Aug 06, 2009 | 1987 Nissan 300ZX

3 Answers

Gagues stopped working, even the digital readout, on my 2003 Chevy Suburban The wire harness is connected properly. Any ideas on how to fix this problem?

I'm going to assume you checked the fuses, and say that the display panel will have to be replaced. On these the display is all one piece, and when one gage goes out it effects the whole thing. Some of these display panels had in line fuses on the inside circuitry, so you may be able to pull the display and change the fuse. Others were built as a sealed unit and cannot be taken apart.

Aug 21, 2008 | 2003 Chevrolet Suburban 1500

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