Question about 1985 BMW K 100 RT

1 Answer

I have a problem with my K100. The speedometer works indicating the speed but the odometer doesn't work accumulating miles. I changed the rear sensor and still doesn't work. Thanks, Ernesto

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 113 Answers

I believe that the odometer is driven from the speedometer within the instrument cluster.

I would suggest talking to and or sending the entire instrument cluster to Palo Alto Speedometer for repairs.

Link to Palo Alto Speedometer

Best of Luck!

Posted on Nov 11, 2010

  • Glenn Kaler Nov 14, 2013

    It is true that the odometer is driven by the speedometer. You may want to check the speedometer gears. This will require you to remove the speedometer and inspect the gears to make sure they are engaged and not broken. A gear kit can be purchased to fit it.

  • quinton ashley
    quinton ashley Jan 12, 2014

    This very helpfull will check and thanks for the advise, ive just baught a k100rs and have the same problem,the spedomitor works then suddenly drops to 0 but as for the km calvculator it remains on 00000 so i cant tell my distance travelled.

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Doesnanyone have a diagram showing where the wires on a speedometer connect to? I need to see if i pulled it on accident. And fuel gauge. Im learning so pictures are easier. Thx 2001 chevy tahoe


The speedometer gauge is controlled by information sent over the class 2 data bus from the PCM/ECM - engine computer . There is a VSS - vehicle speed sensor mounted on the transmission , this VSS is a input to the engine computer .
Speedometer
The IPC displays the vehicle speed based on the vehicle speed signal from the PCM. The IPC- instrument panel cluster receives the vehicle speed signal via a discreet wire. The IPC uses the vehicle speed signal circuit (4000 pulses/mile) from the PCM in order to calculate the vehicle speed. The speedometer defaults to 0 km/h (0 mph) if a malfunction in the vehicle speed signal circuit (4000 pulses/mile) exists.
Is the whole instrument cluster dead ?
Fuel Gauge
The IPC displays the fuel level as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the fuel level percent. The fuel gauge 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 - 4.3 L
• Fuel System Description in Engine Controls - 4.8 L, 5.3 L and 6.0 L
• Fuel System Description in Engine Controls - 6.6 L
• Fuel System Description in Engine Controls - 8.1 L
Hourmeter
The IPC can display the accumulated engine run time hours using the VF display when the cluster is in the LOCK or ACC position. The IPC stores the accumulated engine run time hours in a non-volatile format. The accumulated hours will not change if the battery was disconnected or removed. When the ignition is OFF and the trip reset switch is pushed in and held for more than 4 seconds, the IPC will display the accumulated hours for 30 seconds. The hourmeter will reset to 0.0 when 10,000 hours are accumulated.
Odometer
The IPC contains a season odometer and a trip odometer. Momentarily press the trip/reset switch on the IPC in order to toggle between the season odometer and the trip odometer. Press the trip/reset switch for greater than 2 seconds, while the trip odometer is displayed, in order to reset the trip odometer. The IPC displays the vehicle mileage and trip mileage as determined by the IPC. The IPC calculates the mileage based on the vehicle speed signal circuit from the PCM. The odometer will display 'error' if an internal IPC memory failure is detected. The odometer can be configured to display either miles or kilometers.
PRNDL Display
The IPC displays the selected gear position as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the gear position. The PRNDL display blanks if:
• The PCM detects a malfunction in the transmission range switch circuit.
• The IPC receives a class 2 message indicating the park position and the column park switch indicates a position other than park (open input).
• The IPC detects a loss of class 2 communications with the PCM.
GM had problems with stepper motors that control the needle position .
Your best bet buy a used instrument cluster from the auto slavage yard .

Apr 30, 2017 | Cars & Trucks

1 Answer

Speedometer quit working,possible causes?


Many possible causes

THEORY OF OPERATION
The 2001 electronic speedometer consists of a speed sensor, an odometer reset switch and the speedometer itself. The speed sensor is located on the right side of transmission case below the starter. It is a Hall Effect sensor that is triggered by the gear teeth of 4th gear on the transmission mainshaft. The output from the sensor is a series of pulses that are interpreted by speedometer circuitry to control the position of the speedometer needle and the liquid crystal (LCD) odometer display. The odometer mileage is permanently stored and will not be lost when electrical power is turned off or disconnected. The odometer reset switch allows switching between the odometer and the trip odometer displays. To zero the trip odometer, while having the odometer display visible, press and keep the function switch depressed. The trip odometer mileage will be displayed for 2-3 seconds and then the trip mileage will return to zero miles. The odometer can display six numbers to indicate a maximum of 999999 miles. The trip odometer can display six numbers with a tenth of a mile accuracy for a maximum of 99999.9 miles. Circuitry in the speedometer also uses the sensor input to provide an input to the turn signal canceller. This turn signal canceller input was previously supplied by the reed switch in mechanical speedometers.

DIAGNOSTICS
To enable diagnostic mode depress the odometer reset switch and turn ignition/key switch to ON, to clear codes turn the ignition switch from OFF to ON while holding the reset switch in. Press and release the reset switch to cycle through the codes. Set codes will display as Code d0xSet. Holding the reset switch in will result in Code d0xClr being displayed indicating that the code has been cleared. To return the speedometer to the normal operating state cycle the ignition/key switch.

Remove the seat for testing. Remove the speed sensor and check for accumulation of debris on it and if there is any debris present, clean it away and if there is not debris replace the sensor.

Disconnecting the speed sensor will cause code d02 to set.


ODOMETER, TRIP ODOMETER AND RESET SWITCH TESTING

Turn the ignition ON. Does odometer display consist of the correct numbers?
If YES Press trip reset switch. Does the LCD display toggle between trip and odometer modes? BUT if the odometer display does not consist of the correct numbers replace the speedometer.

If the speedometer does display the correct numbers press the trip reset switch. Does the LCD display toggle between the trip and odometer modes? If No Loosen the trip reset switch boot and then tighten it again until it is snug and toggle the switch again and verify if it toggles between trip and odometer modes? If YES does the trip display consist of correct numbers? If it does STOP here and go to test 2A If No replace the speedometer.

If loosening and retightening the reset switch boot results in okay toggling between the trip and odometer modes the Speedometer is OKAY. If it does not, then remove the rubber boot from the reset switch and toggle it without the rubber cover and if it now toggles between the trip and the odometer modes replace the reset switch boot/cover. If it does not now toggle between the trip and odometer modes place a jumper wire across the leads to the reset switch on speedometer connector. Does the LCD display now toggle between the trip and the odometer modes? If yes replace the reset switch and if No replace the speedometer.

Speedometer Test 2A
SPEEDOMETER INOPERATIVE, READS HIGH/LOW, NEEDLE STICKS, INTERMITTENT/ERRATIC, OUTPUT SPEED SIGNAL INOPERATIVE

Turn ignition ON. Is speedometer backlighting on? If NO then If speedometer backlighting is not on, check for 9-12 VDC on the O/W wire at connector
[39B]. If the proper voltage is present check for continuity to ground on the BK wire at connector [39B]. If there was not appropriate voltage on the )/W wire at connector [39B] locate and repair an open in the O/W wire.
If there is continuity at the BK wire at connector [39B] replace the speedometer. If there is not locate and repair an open in the BK wire.

If there is backlighting enable diagnostic mode and clear codes. Then recheck for codes. If there are any codes present go to the applicable
code in Speedometer Test 2B (d0x).
If there are no codes set return the speedometer to its normal state, raise the rear wheel from the ground, put the transmission in 5th gear, turn the ignition ON, spin the back tire, enable diagnostic mode and check for codes and if there are any codes set now make repairs to the harness/connections.

May 01, 2014 | 2000 Harley Davidson FLHR-FLHRI Road king

1 Answer

My 97 volvo was in an accident before i bought it and my speedometer works but my odometer doesn't what or where should i begin looking to fix it


The speedometer works from the speed sensor (top of transmission casing, near engine. The Odometer must run from a cable from the transmission housing toward the firewall and the instrument cluster. The cable is either disconnected, broken or worn. You need the disconnect it and turn it with a drill to see if it works.
Source : I had a mazda where the cable became all rounded up where it connects into the transmission, I had to change the odometer cable. I did however change the speed sensor on my 94 850.

Feb 19, 2013 | 1997 Volvo 850

1 Answer

1994 Nissan pu speedometer quit working


SPEEDOMETER TROUBLESHOOTING


Can be loose speedo wiring connectors under instrument panel or its issue with speed sensor on transmission.


I suggest you to go through help links mentioned below with appropriate solutions to confirm the problem :------


How to trouble shoot speedometer?

http://schematicsdiagram.blogspot.com/2011/06/speedometer-not-working.html

-----------

1996 fiat bravo speedometer not working?

http://technoanswers.blogspot.com/2012/01/1996-fiat-bravo-speedometer-not-working.html
------------

Speedometer works but odometer not working?

http://technoanswers.blogspot.in/2012/01/speedometer-works-but-odometer-not.html

-----------

Speedometer runs backward?

http://technoanswers.blogspot.com/2012/01/speedometer-runs-backward.html

-------------

Warning lights on and speedometer died?

http://howtobyme.blogspot.com/2011/08/warning-lights-on-and-speedometer-died.ht

-------------

Speedometer not working on 1993 Ford F350?


http://repairhelpcenter.blogspot.in/2012/02/speedometer-not-working-on-1993-ford.html

----------

ABS & Brake lights warning indicator steady on dash and speedometer not working for Dodge Ram?

http://howtobyme.blogspot.com/2011/11/abs-brake-lights-warning-indicator.html

-----------

Vehicles Cluster panel Not reading Miles?

http://schematicsdiagram.blogspot.com/2011/12/vehicles-cluster-panel-not-reading.html

-------------

Odometer works properly but speedometer works intermittently?

http://technoanswers.blogspot.com/2012/01/odometer-works-properly-but-speedometer.html

-------------

These will help.

Thanks.

Feb 04, 2013 | Nissan Cars & Trucks

1 Answer

98 jetta error code p0101


Can be loose speedo wiring connectors under instrument panel or its issue with speed sensor on transmission.

I suggest you to go through help links mentioned below with appropriate solutions to confirm the problem :------

How to trouble shoot speedometer?

http://schematicsdiagram.blogspot.com/2011/06/speedometer-not-working.html

-----------

1996 fiat bravo speedometer not working?

http://technoanswers.blogspot.com/2012/01/1996-fiat-bravo-speedometer-not-working.html
------------

Speedometer works but odometer not working?

http://technoanswers.blogspot.in/2012/01/speedometer-works-but-odometer-not.html


-----------

Speedometer runs backward?

http://technoanswers.blogspot.com/2012/01/speedometer-runs-backward.html

-------------

Warning lights on and speedometer died?

http://howtobyme.blogspot.com/2011/08/warning-lights-on-and-speedometer-died.ht

-------------

Speedometer not working on 1993 Ford F350?


http://repairhelpcenter.blogspot.in/2012/02/speedometer-not-working-on-1993-ford.html

----------

ABS & Brake lights warning indicator steady on dash and speedometer not working for Dodge Ram?

http://howtobyme.blogspot.com/2011/11/abs-brake-lights-warning-indicator.html

-----------

Vehicles Cluster panel Not reading Miles?

http://schematicsdiagram.blogspot.com/2011/12/vehicles-cluster-panel-not-reading.html

-------------

Odometer works properly but speedometer works intermittently?

http://technoanswers.blogspot.com/2012/01/odometer-works-properly-but-speedometer.html

-------------
These will help.
Thanks.

Nov 27, 2012 | 2008 Volkswagen Jetta Wagon

1 Answer

I have a 2003 ford escape & the digital odometer doesn't work correctly


Have the dealer do a speedometer accuracy test. They have a special tool that can electronically read the speed and then compare it to the readout of the odometer.

Jul 16, 2012 | 2003 Ford Escape

1 Answer

What's the problem when your odometer reading


are you saying that the odometer does not roll over the miles and that the speed of water does register the current speed?
Usually if the odometer is not working it is a problem inside the speedometer unit in the dash.If neither is working then you may have a broken connection to the unit on the transmission that sends electrical information to the speedometer.I hope this helpsregards

Feb 22, 2012 | 2001 Oldsmobile Intrigue

2 Answers

Speedometer doesn't work


For speedometer related issues,the help links are provided below.Click the link below to go through its details :----

How to trouble shoot speedometer?

http://schematicsdiagram.blogspot.com/2011/06/speedometer-not-working.html

-----------
why speedometer not working? http://technoanswers.blogspot.com/2012/01/1996-fiat-bravo-speedometer-not-working.html

------------
Speedometer works but odometer not working? http://technoanswers.blogspot.in/2012/01/speedometer-works-but-odometer-not.html----------- Speedometer runs backward?

http://technoanswers.blogspot.com/2012/01/speedometer-runs-backward.html

---------
Warning lights on and speedometer died?

http://howtobyme.blogspot.com/2011/08/warning-lights-on-and-speedometer-died.html

--------------


ABS & Brake lights warning indicator steady on dash and speedometer not working?

http://howtobyme.blogspot.com/2011/11/abs-brake-lights-warning-indicator.html

-----------
Vehicles Cluster panel Not reading Miles?

http://schematicsdiagram.blogspot.com/2011/12/vehicles-cluster-panel-not-reading.html

---------
Odometer works properly but speedometer works intermittently? http://technoanswers.blogspot.com/2012/01/odometer-works-properly-but-speedometer.html

---------------
How odometer works in cars?

http://technoanswers.blogspot.com/2011/11/how-odometer-works-in-cars.html

--------------
Speedometer not working on Ford?

http://repairhelpcenter.blogspot.in/2012/02/speedometer-not-working-on-1993-ford.html

--------

This will help.

Thanks

Feb 14, 2012 | 1996 Plymouth Voyager

1 Answer

Speedometer not working 2000 harley davison and engine light is on


Here is some 2001 information that may be helpful



The 2001 DYNA electronic speedometer consists of a speed sensor, an odometer reset switch and the speedometer itself. The speed sensor is located on the right side of transmission case below the starter. It is a Hall Effect sensor that is triggered by the gear teeth of 4th gear on the transmission mainshaft. The output from the sensor is a series of pulses that are interpreted by speedometer circuitry to control the position of the speedometer needle and the liquid crystal (LCD) odometer display. The odometer mileage is permanently stored and will not be lost when electrical power is turned off or disconnected. The odometer reset switch allows switching between the odometer and the trip odometer displays. To zero the trip odometer, while having the odometer display visible, press and keep the function switch depressed. The trip odometer mileage will be displayed for 2-3 seconds and then the trip mileage will return to zero miles. The odometer can display six numbers to indicate a maximum of 999999 miles. The trip odometer can display six numbers with a tenth of a mile accuracy for a maximum of 99999.9 miles. Circuitry in the speedometer also uses the sensor input to provide an input to the turn signal canceller. This turn signal canceller input was previously supplied by the reed switch in mechanical speedometers.


DIAGNOSTICS

To enable diagnostic mode depress the odometer reset switch and turn ignition/key switch to ON, to clear codes turn the ignition switch from OFF to ON while holding the reset switch in. Press and release the reset switch to cycle through the codes. Set codes will display as Code d0xSet. Holding the reset switch in will result in Code d0xClr being displayed indicating that the code has been cleared. To return the speedometer to the normal operating state cycle the ignition/key switch.


Remove the seat for testing. Remove the speed sensor and check for accumulation of debris on it and if there is any debris present, clean it away and if there is not debris replace the sensor.


Disconnecting the speed sensor will cause code d02 to set.



ODOMETER, TRIP ODOMETER AND RESET SWITCH TESTING


Turn the ignition ON. Does odometer display consist of the correct numbers?

If YES Press trip reset switch. Does the LCD display toggle between trip and odometer modes? BUT if the odometer display does not consist of the correct numbers replace the speedometer.


If the speedometer does display the correct numbers press the trip reset switch. Does the LCD display toggle between the trip and odometer modes? If No Loosen the trip reset switch boot and then tighten it again until it is snug and toggle the switch again and verify if it toggles between trip and odometer modes? If YES does the trip display consist of correct numbers? If it does STOP here and go to test 2A If No replace the speedometer.


If loosening and retightening the reset switch boot results in okay toggling between the trip and odometer modes the Speedometer is OKAY. If it does not, then remove the rubber boot from the reset switch and toggle it without the rubber cover and if it now toggles between the trip and the odometer modes replace the reset switch boot/cover. If it does not now toggle between the trip and odometer modes place a jumper wire across the leads to the reset switch on speedometer connector. Does the LCD display now toggle between the trip and the odometer modes? If yes replace the reset switch and if No replace the speedometer.


Speedometer Test 2A

SPEEDOMETER INOPERATIVE, READS HIGH/LOW, NEEDLE STICKS, INTERMITTENT/ERRATIC, OUTPUT SPEED SIGNAL INOPERATIVE


Turn ignition ON. Is speedometer backlighting on? If NO then If speedometer backlighting is not on, check for 9-12 VDC on the O/W wire at connector

[39B]. If the proper voltage is present check for continuity to ground on the BK wire at connector [39B]. If there was not appropriate voltage on the )/W wire at connector [39B] locate and repair an open in the O/W wire.

If there is continuity at the BK wire at connector [39B] replace the speedometer. If there is not locate and repair an open in the BK wire.


If there is backlighting enable diagnostic mode and clear codes. Then recheck for codes. If there are any codes present go to the applicable

code in Speedometer Test 2B (d0x).

If there are no codes set return the speedometer to its normal state, raise the rear wheel from the ground, put the transmission in 5th gear, turn the ignition ON, spin the back tire, enable diagnostic mode and check for codes and if there are any codes set now make repairs to the harness/connections.

Jun 26, 2011 | 2000 Harley Davidson FXD Dyna Super Glide

Not finding what you are looking for?
1985 BMW K 100 RT Logo

839 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4536 Answers

Mike Gilbreath

Level 1 Expert

50 Answers

yadayada
yadayada

Level 3 Expert

76846 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...