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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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Posted on Jan 02, 2017

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Where are all the ground wires located on a 2008 chevy cobalt?


It wouldn't be a ground problem If it were the whole instrument cluster would be dead . Checking the BCM an the IPC for DTC'S - diagnostic trouble codes is the proper way to diagnose this type problem . Not worrying about grounds .
Odometer
The vehicle odometer is calculated and stored electronically in the body control module (BCM) and is sent via the serial data circuit to the instrument panel cluster (IPC) for display. The BCM calculates and stores the mileage based on the vehicle speed serial data information from the PCM/ECM. The IPC displays the season odometer information from the BCM in the driver information center (DIC). The odometer will display error if the IPC detects an invalid odometer data from the BCM. After an invalid odometer data is received from the BCM, the IPC will display the last known odometer reading for 1.5 seconds before error is displayed in the DIC.
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The instrument panel cluster (IPC) displays the vehicle speed based on serial data message from the body control module (BCM). The BCM receives vehicle speed data from the PCM/ECM via the serial data circuit. The speedometer will default to 0 km/h (0 mph) if:
• The PCM/ECM detects a malfunction in the vehicle speed sensor circuit.
• The BCM detects a loss of serial data communications with the PCM/ECM.
• The IPC detects a loss of serial data communications with the BCM.

Your best bet would be to take it to the dealer !

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1 Answer

Speedometer stopped working after fitting an alarm. What could be the problem?


Put everything back the way it was and see if speedometer starts working again?
Newer instrument clusters, the gages are not hardwired, The cluster receives buss data telling the instrument what to do with gages and speedometer. Checking the speedometer/vss sending unit would be a thought. Hopefully, you didn't hurt the instrument cluster?
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1 Answer

Had to replace my starter and now speedometer doesn't work


The starter would have nothing to do with the speedometer not working . What year ,make , model vehicle ! Most vehicles the speedometer is control electronically . The VSS - vehicle speed sensor located on or inside the transmission ,is what the PCM - engine computer uses for speed information . The VSS is an input to the PCM , the PCM sends that information to the instrument cluster over a serial data communication network or data buss , then the instrument cluster controls a little electric motor to control the speedometer . So if the car runs good an shifts good the problem could be the instrument cluster .

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1 Answer

I have a 2001 chevy venture I changed the vss sensor like 3 time it will work for a few days then I'll start acting up again and the speedometer will stop working how can I fix it?


Do you have any other problems with the vehicle ? Transmission shifting problems , fluctuating idle etc... The vehicle speed sensor does not control the speedometer directly , it is an input to the PCM/ECM - engine computer .
Speedometer
The IPC displays vehicle speed as determined by the PCM. The IPC receives a class 2 message from the PCM. The Vehicle Speed Sensor (VSS) discrete signal is pulled up to ignition voltage in the PCM. The IPC uses the VSS data received from the PCM and a software program to determine the proper vehicle speed to display.
To tell what is happening a factory scan tool needs to be hooked up to check serial data communications between the PCM an instrument cluster . Also could be a bad stepper motor for speedometer , GM had faulty ones back in that year.
To How to repair GM Instrument Cluster Speedometer Gauge Stepper

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1 Answer

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Vehicles don't use speedometer cables any more . Not since the mid 80's ! If your speedometer isn't working it is probably the gauge . In the transmission is a vehicle speed sensor , this sensor is most likely an input to the engine computer ,which sends a data message to the instrument cluster on a serial data messages bus .

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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.

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U1123 SCP (J1850) Invalid or Missing Data for Odometer, if you couldn't fix it by yourself, you shold take it to professional.
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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

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1 Answer

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