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Old 07-28-2014, 06:41 AM
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No interior accessories.

Picked up my jeep from firestone Sunday and everything worked properly, today on way to work on tollway, my over head info center is showing hash marks, my spedo is bouncing around bit rpm stable the dash is illuminated but no outside lamps, my Windows dont work, and keyless entry doesn't have the verification honk. The yellow key lamp goes on/off
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Old 07-28-2014, 11:21 AM
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Re: No interior accessories.

Check first the wires in the drivers door boot. Sounds as a problem with the PCI data bus. Did it rain lately?
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  #3  
Old 07-28-2014, 11:24 AM
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Re: No interior accessories.

No no rain, all of a sudden this morning everything went out.
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Old 07-28-2014, 11:30 AM
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Re: No interior accessories.

PCI bus problems many times start after water enters the C200 connector on the bulkhead, but that is most probably not your case.
So look first at the drivers and passengers door boot for broken wire. If you will not find anything wrong there, the troubleshooting will become a bit more complicated.
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Old 07-28-2014, 11:32 AM
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Re: No interior accessories.

Im about to disconnect battery
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Old 07-28-2014, 11:33 AM
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Re: No interior accessories.

Aftermarket alarm/keyless entry be causing this? Before it went hay wire my hvac shut off and turned on and everything else stopped working
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Old 07-28-2014, 11:37 AM
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Re: No interior accessories.

Do you have the automatic zone control HVAC? Was the aftermarket alarm installed this weekend or what other work has been done?
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Old 07-28-2014, 11:50 AM
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Re: No interior accessories.

Tires been replaced and ball joint rt side. Alarm been in for 1.5yrs. Resetting the modules worked, but for how long
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Old 07-28-2014, 12:29 PM
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Re: No interior accessories.

No idea why this happens, but one of the components on the PCI data bus had a hickup and disturbed the data communication. The battery disconnect reset it.
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Old 07-28-2014, 03:56 PM
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Re: No interior accessories.

Update: speedo is going bonkers everything else works
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Old 07-28-2014, 06:40 PM
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Re: No interior accessories.

Noticing the speedo jumps to the shifting of the trans seems like
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Old 07-28-2014, 07:36 PM
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Re: No interior accessories.

The speedo gets its speed signal via the PCI bus from the PCM. The PCM in its turn gets the info from the ABS controller, which uses the rear wheel speed sensors for this.
Sure all other systems are working properly? You could do the instrument self test to see if there is something wrong with the cluster: With ignition in off, press the odometer reset button and now switch ignition in run. All instrument panel lights will light up, all indicators go full scale and return to normal position and the odometer will count 11111, 2222 etc. Does the speedometer pointer move smoothly?
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