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How to fix code #u1097

What is speedometer seiral data

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DTC U1097 no communication with driver information center conditions.need let dealership check it out. sound like the drive information center module have failed.

Posted on Jul 24, 2013

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Goggle it

Posted on Jul 24, 2013


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Speedometer won't work in 97 Astro, replaced

What sensor ? VSS - vehicle speed sensor on the transmission ? Colud be the speedometer gauge is bad . Do you know how the insturment cluster get's that info. ? Your best bet , take it to a qualified repair shop . You have no idea how it works , don't have the diagnostic tool's to find the problem ,so do yourself a favor . The first step would be to hook up a factory or professional type scan tool to see if the VSS info is seen in the VCM ,then to see what the VCM is sending over the serial data network . Do you know what a serial data communication network is ? VCM is vehicle control module .
Speedometer and Odometer Circuit Description
An electronic speedometer is standard equipment on all models. Integrated circuits control the air core speedometer and the stepper motor odometer. Removable bulb and socket assemblies provide the lighting. The socket assembly inserts into the back of the instrument cluster.
The speedometer system consists of the following components:
• The instrument cluster
• The vehicle speed sensor (VSS) calibrator
• The VSS
• The related wiring
The VSS calibration is part of the VCM that changes the analog output from the VSS to a digital signal. The digital signal contains 4000 pulses per mile (PPM) for the instrument cluster. The VCM sends the signal to the speedometer through CKT 389. The VSS calibration matches to the final drive and the tire size of each vehicle. Reprogram the VCM with the proper VSS calibration if the final drive or tire size changes for any reason. The signal will not be accurate for the proper speedometer/odometer operation if the necessary change is not made. An incorrect VSS calibrator can also affect the following components:
• The antilock brakes
• The vehicle control module (VCM)
The cruise control systems
The VSS calibration is programmed into the VCM. Do not service the VSS calibrator separately.
The VSS is a permanent magnet signal generator that sends an analog signal proportional to the propeller shaft speed to the VCM. The VSS mounts to the transmission tailshaft extension housing on the two-wheel drive model. The VSS mounts to the transfer case output shaft housing on the all-wheel drive models.

Use a Scan Tool in order to read the vehicle control module (VCM) diagnostic trouble codes.
Are there any vehicle speed sensor related trouble codes?
Testing an not guessing fixes problems

Sep 19, 2017 | 1997 Chevrolet Astro

1 Answer

Whenever the RPM and speedometer won't work the transmission won't change out! What.can possibly be wrong? thanks!!

What make , model and year vehicle ? Don't know how much you know about the modern automobile , how computes and how data transfer happens ! Speedometer , tachometer , fuel gauge , tempreature gauge etc.... Sensor inputs from these sensors are iinputs to the PCM - engine computer and to get to the gauge in the instrument cluster , this info is sent by a message on the serial data bus . The VSS - vehicle speed sensor not only supply's info the speedometer but also the PCM use's for transmission shift points .
How often does this happen (RPM and speedometer drop out ?) Could have lose connector in the wiring harness or at the PCM . A wire that is grounding on on the frame or body .The first place to start would be checking for DTC'S diagnostic trouble code's . Could make diagnostic's a whole lot easier !

Dec 10, 2016 | Cars & Trucks

2 Answers

2001 Buick Century Limited speedometer problem, Speedometer not working but odomitor ok. Is there a fuse?

if the odometer is working then the problem is with the speedometer head unit as the odometer gets its information from the same source as the speedometer. you can have the speedometer head checked and fixed if its fixable.

Aug 22, 2015 | 2001 Buick Century Limited

1 Answer

U1123 scp data fault for speedometer on 04 lincoln aviator

U1123 SCP (J1850) Invalid or Missing Data for Odometer, if you couldn't fix it by yourself, you shold take it to professional.
super vag k+can v4.8

Nov 16, 2012 | Cars & Trucks

1 Answer

Gauges on my 2000 Pontiac Grand prix stop working what can be the problem

is this all the gauges? if so remove the insterment cluster and with a diagram check the grounds and powers and checkthe plug clicks in tight if all is good get then get a cluster .this cluster does not use seiral data for the gauges

Feb 10, 2012 | 2000 Pontiac Grand Prix

1 Answer

Where can I find the wiring diagram for this Chevy Colorado 2007 for the Speedometer. I bought this Truck to this local Car Dealer with Speedometer doesn't function at all. I want to try to see what...

Your speedometer is controlled by your computer network. The vehicle speed sensor (VSS) sends a signal to the Body Control Module (BCM) which then relays the speed sensor data via the UART data lines to the Powertrain Control Module (PCM) and the Instrument Panel Cluster (IPC). To find out why your speedometer is not functioning, you must FIRST scan your ENTIRE computer network for possible fault codes. It is possible that either the VSS is defective or the BCM is not able to relay the information due to a communications fault, or the BCM is relaying the information and the IPC is unable to receive the information due to a communications fault, or the IPC itself is defective. Wiring diagrams will be of no use until you determine which parts of the network is receiving the information from the VSS and which parts are not. This will require the use of a scan tool that can not only read generic OBD fault codes, but also access and display codes and live data from the BCM, PCM and IPC.

Oct 21, 2011 | 2007 Chevrolet Colorado (Extended Cab) New...

1 Answer

Erratic speedometer causing miss shifting. Seems to only happen with Security codes or possibly other engine codes as well. the latest issue im haveing seems to be security of some kind.maybe a bad chip in...

Propably the VSS - vehicle speed sensor . The PCM uses this input to control shifting an speedometer information . Or a wiring issue . If you think there are othe codes stored in the computer the wise thing to do would be to have read or pull . You don't say what engine size yours is ? 3.1 L or the 3.8 L ? How many key's do you have on your car key ring ? Have other car key's ? confusing the control module . Speedometer
The IPC displays the vehicle speed based on the information from the PCM. The PCM converts the data from the vehicle speed sensor to a 4000 pulses/mile signal. 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 mph (0 km/h) if a malfunction in the vehicle speed signal circuit (4000 pulses/mile) exists.

Mar 23, 2017 | 2002 Pontiac Grand Prix

1 Answer


they way i always do it is remove the radio get the seiral # off the radio then call the dealer and with the serial # they can give you the code,the only way to get code with vin# is if they have the code on file from repairs done in the past,

Apr 02, 2010 | 1997 Mercedes-Benz E-Class

2 Answers

Speedometer temprature guage is false readings

Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Monte Carlo instrument cluster repair

Jan 18, 2010 | 2004 Chevrolet Monte Carlo

1 Answer

2000 windstar speedometer

First thing to do from a repair perspective is to hook up a scan tool to the OBD2 port.Go into the real time data stream and see if the vehicle computer is seeing a vehicle speed signal.If the computer is not seeing a speed signal,then it is likely a malfunctioning speed sensor on the transmission,and will have stored trouble codes with numbers and definitions.If the vehicle computer IS seeing a speed signal from the trans,then the speedometer gauge in the dash is malfunctioning.Either way,the vehicle computer has to be accessed with a scan tool,or code reader.Every diagnostic trouble code,has a diagnostic route.The diagnostic route is available through pay sources like All Data online.

Aug 14, 2008 | 2000 Ford Windstar

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