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04 GTP COMP G electrical issue - RESOLVED

GTX

New member
At first it began with the service ABS/TRACTION/STABILITY and BRAKES on the DIC with the dummy lights for the ABS TRACTION and E-BRAKE lights on the IPC

Tonight, I had very brief display of service charging system light right before the IPC, HUD,DIC and radio stopped working...all gauges read no values or had no displays/power

I turned the vehicle off thinking I might reset the issue....the car did not start just heard a relay click, no engine crank and after 7-8 key turns..it fired up and I was on my way...however this did not fix the original issues described in the previous paragraph....now the car only randomly starts and when it does it sounds normal...nothing to suspect charging/battery/fuel...exterior lights, windows, door locks, interior lighting, 12 volt sources all powered...however scanner does not communicate with any of my modules....PCM,BCM etc....

The key when turned, you will hear clicking from the right side ( passenger side ) as well as the fuel pump priming ...however the chime will not chime ...I'm leaning towards the ignition cylinder....but since this problem happened tonight I have not really jumped into until tomorrow hopefully when I have daylight ....

Just wondering if anyone has ever had any similar or exact problems as described..

I have so far checked....battery, battery terminal connections, underhood fuses and relays (swapping and replacing ) as well as the interior which all turned up with no different results...

If interested I will post video of this situation to give a better idea

Any help would be beneficial and greatly appreciated , thanks


edit: heated seats are also inop as well as AC..HVAC system/Blower motor DOES BLOW AIR, air conditioning with the button pressed no longer blows cold

and of course....Data Link Connector is powered, however scanner will no longer communicate to any module in the car
 
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Re: 04 gtp comp g odd issue - electrical

oddly enough when playing with the IGN 1 relay in the junction block underhood, power is restored to the IPC, HUD, DIC, AC, and radio
 
Re: 04 gtp comp g odd issue - electrical

This happened to me too a while ago. Found out my a/c blower shorted.. Replaced it and starts right up... Grand Prix electrical has always been bad...
 
Re: 04 gtp comp g odd issue - electrical

This happened to me too a while ago. Found out my a/c blower shorted.. Replaced it and starts right up... Grand Prix electrical has always been bad...

are you suggesting my blower motor shorted out and causing all these problems?
 


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