Question about 1990 Plymouth Sundance

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Speedometer dont work shows 120 mph standing still will show 0 mph when moving odometer dont record mileage

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Hi..
this is because of problem eith the speed do meter itsef. the gear component inside the speedometer may be damages. please try replacing the speedometer itself.

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Posted on Jul 10, 2010

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The odometer is not working on my 1999 navigator. It just says 0. What could be the problem?


Odometer The instrument cluster receives odometer rolling count status from the PCM-engine computer and stores the mileage in non-volatile memory (NVM). When the instrument cluster fails to receive the odometer rolling count status for more than two seconds, the odometer display will show dashes.

HEC Dealer Test Mode
To enter the HEC Dealer Test Mode, depress and hold the instrument cluster SELECT/RESET button and then turn the ignition switch to the RUN position. Continue pressing the SELECT/RESET button (5 seconds) until tESt is displayed in the odometer. The SELECT/RESET button must be released within 3 seconds of the odometer displaying tESt to begin the dealer test mode. Depress the SELECT/RESET button to advance through the following steps until dtc is displayed. Depressing the SELECT/RESET button will display any continuous DTCs stored before proceeding to the next step.

All segments illuminated Illuminates all odometer segments. If any odometer segment is inoperative, INSTALL a new instrument cluster; REFER to Instrument Cluster .
Odometer Display Description GAGE Activates gauge sweep of all gauges, then displays present gauge values. Also carries out the checksum tests on ROM and EE. If the gauge sweep is inoperative, INSTALL a new instrument cluster; REFER to Instrument Cluster . All segments illuminated Illuminates all odometer segments. If any odometer segment is inoperative, INSTALL a new instrument cluster; REFER to Instrument Cluster . bulb Illuminates all micro-controlled lamps and LEDs (low oil pressure/high coolant temperature, low fuel, service engine soon, brake, low range). INSTALL a new bulb or LED as necessary. 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). If alternating flashes of FAIL and ROM level are displayed, INSTALL a new instrument cluster; refer to Instrument Cluster . EE Displays hexadecimal value for EE level (used when requesting assistance from the hotline). If alternating flashes of FAIL and EE level are displayed, INSTALL a new instrument cluster; refer to Instrument Cluster . dt Displays hexadecimal coding of final manufacturing test date (used when requesting assistance from the hotline). dtc Displays continuous DTCs. Pressing the SELECT/RESET button will display any DTCs stored before proceeding to the next step. enG Displays the English speed in mph. Speedometer will indicate present speed within tolerances. Display will show 0 if input is not received, if input received is invalid for one second or more, or if speed is 0. m Displays the English speed data (mph) received from the PCM via SCP Network. Displays the metric speed in kph. Speedometer will indicate present speed within tolerances. Display will show 0 if input is not received, if input received is invalid for one second or more, or if speed is 0. tAc Displays the tachometer data received from the PCM via the SCP Network. Tachometer will indicate present speed within tolerances. Display will show 0 if input is not received, if input received is invalid for one second or more, or if engine rpm is 0. FUEL Displays the actual A/D fuel level. The fuel gauge will display a filtered fuel level value. This filter will keep the pointer from moving suddenly or erratically. If the value displayed is between 0 and 20, the circuit is shorted. GO to Pinpoint Test D .
  • 255=open send +/-0
  • 232=Full stop +/-10
  • 215=Full mark +/-10
  • 178=3/4 mark +/-8
  • 138=1/2 mark +/-7
  • 93=1/4 mark +/-5
  • 41=E mark +/-4
  • 54="LOW FUEL" (0-59)
  • 0-18=short (0-20 max.)
OIL Displays the code (0-255) for the oil pressure switch input to the HEC. Displays the oil pressure reading input to the HEC. Oil pressure gauge will indicate present oil pressure. Normal oil pressure (greater than 6 psi) will display a value between 000 and 176. A low oil pressure (less than 6 psi) or an inoperative engine oil pressure switch will display a value greater than 176. dEGC Display of engine temperature in Degrees C input from cylinder head temperature sensor. If the value displayed is -40C, the SCP message for engine temperature has not been received for more than 5 seconds. GO to Pinpoint Test E .
  • 49 C="C" mark.
  • 60 C=Normal band start.
  • 120 C=Normal band end.
  • 119 C=Temperature warning indicator ON.
  • "-40" C=No SCP Message for 5 sec.
br Displays the brake fluid level input to the HEC. bAtt Displays the code (0-255) battery voltage input to the HEC. Battery voltage gauge will indicate present battery voltage.
  • 93-102=6.9-9.1 volts (Low voltage)
  • 115-124=8.5-10.7 volts (Norm band start)
  • 215-225=15.8-18 volts (Norm band end)
  • 230-241=16.9-19.1 volts (High voltage)
rhEo Displays the present hexadecimal value for the instrument cluster backlighting pulse width modulated (PWM) input to the HEC (used when requesting assistance from the hotline). rhi
rhS
rho PWM input duty cycle.
SCP hexadecimal dimming step (used when requesting assistance from the hotline).
Output driver counts in hexadecimal format (used when requesting assistance from the hotline). Cr Displays the present RUN/START sense input. Display will show -h with the ignition switch in the START position and -L with the ignition switch in the RUN position. ALtF Displays 8-bit hexadecimal value for alternate fuel level. Display will show a value between 00 and FF if the message is received. PA-PE7 Not used. GAGE Repeats test display cycle.
Turn the ignition switch to the OFF position or press and hold the SELECT/RESET button for 3 or more seconds and release to exit HEC Dealer Test Mode. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.

Mar 12, 2018 | 1999 Lincoln Navigator

1 Answer

1986 Alfa Romeo Spyder. WHen stopped, speedometer shows about 12 mph. At highway speed, it shows about 20 mph. Odomater seems fine.


Phylspilot, my 86 Spider never displayed less than 10 mph. If you look closely, you should see a tiny pin that the needle touches at about 10 mph. That prevents it from ever falling to zero. The needle will not move up until the speed exceeds 10. From my experience, that is normal. In your case, not displaying >20 is NOT normal.

The problem could be a few different things. Since the odometer appears to be working ok (I assume you checked that it racks up the miles at a rate commensurate with your approx speed), the speed needle may be sticking. I had the opposite problem with mine - speed needle okay, and odometer messed up.

I recommend pulling the speedometer housing out of the dash and checking to see if anything is causing the needle to bind. If it isn't, then check the fine spring where the needle is attached to ensure the spring is okay. You should be able to move the needle with your finger smoothly and have it return gently to the start position (in your case 12 mph).

This is a tricky operation. If you remove the needle from the stem, carefully place it back on the stem. Do this without moving the stem. Just reinsert the speed needle on the stem exactly at the small pin that holds the pin at about 10 mph.

Check the entire speedometer housing for cracks. Any crack could be enough to prevent proper operation. (That was the source of my odometer issue.)

Have fun putting it all back together.

Mar 20, 2013 | 1986 Alfa Romeo Spider

1 Answer

Speedometer not working


Could be the speed sensor on the transmission or the speedometer on the dash. Does the odometer work ?

Dec 09, 2012 | 2002 Chrysler Town & Country

1 Answer

My odometer is showing KMs and the speedometer is showing twice the speed on my 2006 Pontiac G6


There is a setting in the driver information panel for English or Metric units. Change this to English and you will see MPH on Speedometer and Miles on Odometer.

May 26, 2011 | 2006 Pontiac G6

1 Answer

While driving the speedometer and odometer quit working.


you have a problem with your speed sensor, you need to check or replace it.

Apr 28, 2009 | 2002 Kia Sedona

1 Answer

Got a fuel computer data error problem.


My linclnls 2001 v8 is indicating me fuel computer data error and the speedometer stays at 0 mph and the trip stay indicater stay blank.any suggestions on what to do??

Apr 09, 2009 | 2003 Lincoln LS

2 Answers

1995 Cougar Odometer/trip-meter inop


Section 13-01: Instrument Cluster—Conventional 1995 Thunderbird, Cougar Workshop Manual REMOVAL AND INSTALLATION Instrument Cluster Removal and Installation
  1. Disconnect battery ground cable (14301) .
  1. Remove screws holding instrument panel reinforcement (017A28) .
  1. Remove screws holding instrument panel lower shield (045G02) .
  1. Remove fasteners holding steering wheel column as outlined in Section 11-04 . Gently lower steering column.
  1. Remove fasteners holding the instrument panel finish panel (044D70) and gently pry off.



  1. Remove four instrument cluster retaining screws. (Do not remove screws from the instrument cluster main lens (10887) and instrument cluster mask (10890) ).
  1. Slide the instrument cluster (10849) to the right of the instrument panel opening and unhook the instrument panel harness from the back of the instrument cluster .
  1. Remove the instrument cluster from the instrument panel (04320) .
-----------------------
Speedometer/Odometer Federal law requires that the odometer in any replacement speedometer (17255) must register the same mileage as that registered in the removed speedometer . Since the speedometer mileage cannot be reset on this unit, affix odometer sticker to driver's door pillar and record original vehicle mileage. Removal
  1. Disconnect battery ground cable (14301) .
  1. Remove the instrument cluster (10849) as outlined.
  1. Remove seven screws retaining the instrument cluster mask (10890) and instrument cluster main lens (10887) .
  1. Remove speedometer assembly.
Installation
  1. Position the speedometer assembly to the instrument cluster back plate (10848) and install.
  1. Position the instrument cluster mask and instrument cluster main lens to the instrument cluster back plate and install the seven retaining screws.
  1. Install the instrument cluster as outlined.
  1. Connect battery ground cable and check the operation of the speedometer .
please rate if this helps

Mar 24, 2009 | 1994 Mercury Cougar

2 Answers

1997 Geo Metro speedometer and odometer do not work


Let me guess, it goes up to about 30, stays there, and if you go faster (past what would be the halfway point of your speedometer) it starts dropping below 30. It sounds like the type of speedometer that uses two magnetic cores at 90 degrees to each other, and one has gone out.

Troubleshooting and repair should be similar to this: http://www.fieros.de/en/articles/speedo.html

Oct 18, 2008 | 1997 Geo Metro

2 Answers

Speedometer stopped working


replace speed sensor

Jul 01, 2008 | 2004 Ford F150

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