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Dashboard gauges sweep

Display panel reads test and sweep gauges

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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


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


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

Fuel gauge

On rare occasions, the fuel gauge does not read the correct level which may result in a no start condition due to a low fuel level.

Upon further investigation, the technician may find DTC P0455/P0461 Fuel Level Sensor Circuit Performance stored in the ECM/PCM. Test it.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Feb 24, 2012 | 2009 Dodge Journey

1 Answer

2003 ford f-350 trans temp gauge shows hot, tow / haul light blinks steadily....what could be the problem

From what i know of these trucks, its a "common problem". There is a tsb on this and the gauges arent really accurate. The tow light is blinking due to heating(not really), its trying to tell you to stop towing. Ive read that some guys gauge is reading 250 which if it really were, the truck would be running. Water boils at 220(im sure u know that). Suggestions ive come across is adding aftermarket gauges that give "accurate" readings unlike factory ones that are controlled by computer. Aftermarket will give you independent readouts.Heres a temp check you can try on your truck, im not sure if it will work for your model.

This is for the regular dash, like in XLT.
key off
push trip button in and hold
turn key on
"test" will appear in message display. Release button.
Gauges will sweep
then just push the button each time to scroll thru various modes.
Mostly junk info, but eventually you will come to temp, it is in Celcius so you have to convert to Farenheight(temp x 1.8 + 32)
Normal temp for mine at idle is 88, so 88x1.8=158.4,+ 32=190.4F
You can also view digital tach. All these modes are real time, and will remain on until you cycle the key on/off.

May 21, 2011 | Ford F-350 Cars & Trucks

1 Answer

The oil gauge is not reading? there is a problem with the odometer. how do you fix it?

sounds like you have a faulty cluster this will need to be replaced and setup by dealer. they can do a gauge sweep test to verify it is the problem

Oct 15, 2010 | 2005 Chevrolet Silverado 1500 2WD

1 Answer

Changing dashboard light


This solution will be of great help to you,even in the case of future or other dashboard problems;
Instrument cluster consists of electronic analog gauges, various warning lights, and optional tachometer. Vehicles equipped with tachometer have an electronic vacuum fluorescent transmission range indicator (PRND3L),odometer and trip odometer display. Vehicles without tachometer are equipped with a cable-operated transmission range indicator.
Instrument cluster is equipped with the following warning lights:
Battery voltage.
Cruise (speed control).
Door ajar.
Fasten seat belt.
Lift gate ajar.
Low fuel level.
Low windshield and washer level.
Traction Control.
The Body Control Module (BCM), which receives input from various sensors, sends display information to instrument cluster and operates gauges. Instrument cluster incorporates a self-test diagnostic feature to identify electronic problems. BCM, Powertrain Control Module (PCM), and Transmission Control Module (TCM) are continuously monitored by the diagnostic system.

With ignition off, press and hold TRIP and RESET buttons while turning ignition switch to ON position. Continue to hold TRIP and RESET buttons until odometer window displays CODE (approximately 5 seconds). If problem exists, system will display diagnostic trouble codes. See DIAGNOSTIC CODE CHART table. If no problem exists, Code 999 (end test) will be displayed.
110.......Cluster Memory Fault
111.......Cluster Calibration Fault
905.......No CCD Bus Message From TCM
921.......Odometer Fault From BCM
940.......No CCD Bus Message From PCM

After diagnostic code display ends, instrument cluster will go into each of the following tests in order:
Dim test.
Calibration test.
Odometer segment test.
Electronic Transmission Range indicator segment test.
Dim Test
CHEC-0 will be displayed in odometer window. Instrument cluster will dim Vacuum Florescent (VF) display. If VF displays do not dim, a problem in instrument cluster exists. See BODY CONTROL COMPUTER TESTS in BODY CONTROL COMPUTER article.
Calibration Test
CHEC-1 will be displayed in odometer window. Each of instrument cluster gauges will move sequentially through each calibration point. See GAUGE CALIBRATIONS table. If gauge needle is not calibrated properly, a problem in instrument cluster exists.

Odometer Segment Test
CHEC-2 will be displayed in odometer window. Each segment of odometer will light sequentially. If any segment does not light, replace instrument cluster.
Electronic Transmission Range Indicator Segment Test
CHEC-3 will be displayed in odometer window. Each segment of electronic transmission range indicator will light sequentially. If any segment does not light, replace instrument cluster.

Aug 09, 2010 | 1998 Plymouth Voyager

1 Answer

My odomeder, gas gauge, oil gauge, basically everything in my dashboard won't display correctly

either the cluster is shorting out or a bad body control midule. A test can be done to find out which it can be by a dealer prefferbly a Buick dealer

Feb 07, 2010 | 1990 Oldsmobile Toronado

2 Answers

HELP!! Having electrical issues with my 2005 Pontiac

electical is hard to diagnose with out being there. i would treat each problem seperately. first you will need to test the engine temp gauge sending unit. in a dealership this is easy with a scanner they can run a sweep test to se if the gauges are don't want the engine to over heat if the gauge is not working. next problem the dome light should be easy to fixe does the dome light work with the dome switch?remove the bulb and with the doors open and switch on check for voltage, if voltage check connection and or replace bulb. if no voltage check fuses for voltage.last will need to have the dtc po243 checked out by a repair shop. i hope this will help.

Oct 30, 2009 | 2005 Pontiac Grand Prix

2 Answers

Fuel Gauge And Temp Gauges Not Working on 1997 Chevy Malibu LS

If you can, take the car to a shop and have them connect a scanner to it. With the scanner they can do a gauge sweep of all components in the instrument cluster. Using the scanner you choose what gauge you want to sweep then command that gauge to sweep from "low to high", "empty to full", "hot to cold" etc. If any gauge in the cluster fails the test you will have to buy an instrument cluster. You cannot buy individual gauges. The cluster is serviced as a unit. Remanufactered units are available ranging from $ 275.00 to $ 500.00. GM had alot of problems with their instrument clusters. You send your cluster in to be rebuilt and they send it back. If you just go buy one and give your old one as a core and the one you buy is not the right one you are stuck with it . You cannot return it. So it is best to send your old one in. Most likely when more than one gauge is affected it is the cluster that is bad. Hope this is helpful.

Apr 23, 2009 | 1997 Chevrolet Malibu

3 Answers

2003 F-250 instrument cluster...

it sounds like you are getting a surge of voltage from your alternator/generator. Very strange.

the dealer can run a diagnostic test & pull fault codes or you can try this. If this helps, please report back & rate as fixya. Thanks. I am curious what you find as root cause. Good luck.

Instrument Cluster Self-Diagnostic Mode
To enter the instrument cluster self diagnostic mode with the engine off, depress and hold the odometer reset button. Turn the ignition switch to the RUN position and hold until the gauges sweep (within five to eight seconds). Depress the reset button once to advance to each stage of the self-test.
Turn the ignition to the OFF position to exit the instrument cluster self-diagnostic mode. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.

Instrument Cluster Self-Diagnostic Mode Odometer display Description GAGE Carries out gauge sweep of all gauges, then displays the present gauge values. Also carries out the check sum test on ROM and EEPROM. All segments illuminated. Illuminates all odometer segments. bulb Illuminates all micro-controlled lamps and LEDs. r #### Returns to normal operation of all micro-controlled lamps and LEDs and displays hexadecimal value for ROM level (used when requesting assistance from the hotline). nr#### Displays hexidecimal ROM level and type as stored in non-volatile memory (NVM). EE ## Displays hexadecimal value for EE level (used when requesting assistance from the hotline). dt #### Displays hexadecimal code for the final manufacturing date. ###C Gas engines display last temperature gauge input value from SCP, temperature gauge will indicate present temperature. Diesel engine displays present temperature analog/digital input in decimal as a ratio, temperature gauge will indicate present temperature. dtc #### Displays a 16 bit DTC in hexidecimal format. DTCs displayed are those detected in continuous operation not during self-test. EnG Displays English speed value being input, speedometer will indicate present speed. m Displays metric speed value being input, speedometer will indicate present speed. tAc Displays the tachometer value being input to the instrument cluster. Tachometer will indicate present rpm. FUEL Displays the present analog/digital fuel level being input to the instrument cluster as a ratio. OIL Displays the last analog/digital reading of the oil pressure switch contact resistance, oil gauge will indicate present level. br Displays the brake fluid level in an analog/digital ratio value. bAt ##.# Displays present battery analog/digital voltage. rhEo Displays present hexadecimal pulse width modulation (PWM) dimming input. rhi, rhS, rho Alternating 1 second display of pulse width modulation (PWM) input duty cycle, SCP hexidecimal dimming step, output driver counts in hexadecimal. Cr RUN/START sense circuit check. PA, Pb, PC, and Pd Displays 8-bit hexadecimal value for the Port A, B, C, and D readings (used when requesting information from the hotline). PE0-PE7 Displays 8-bit hexadecimal value for the Port E0-Port E7 in analog/digital readings

Jan 26, 2009 | 2003 Ford F250 Super Duty Crew Cab

1 Answer


First thing to check are the engine's thermostat. It should open around 190 degrees. Does your instrument panel have a coolant temperature gauge or just an idiot light? If the gauge is in the middle third of it's sweep, the thermostat is OK. If the gauge reads low, have the thermostat replaced.
The second item to check in in the HVAC box below the dashboard. If the Fresh air/Recirculate door will not shut, cold outside air is continually mixed, which will degrade heating.

Dec 23, 2008 | Mitsubishi Outlander Cars & Trucks

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