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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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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 .
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.
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:
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Put everything back the way it was and see if speedometer starts working again?
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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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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 .
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To How to repair GM Instrument Cluster Speedometer Gauge Stepper

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