No Crank No start suggestion....I also have a no crank issue with my 2004 SRX V8 2wd.
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Cadillac SRX First Generation Forum - 2004 - 2009 Discussion, No Crank No start suggestion....I also have a no crank issue with my 2004 SRX V8 2wd. in Cadillac SRX Forums; My car has a no crank no start problem, WHEN I get in to start it, HOt or COLD, Day ...
  1. #1
    stevewhitt1962 is offline Cadillac Owners Member
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    No Crank No start suggestion....I also have a no crank issue with my 2004 SRX V8 2wd.

    My car has a no crank no start problem, WHEN I get in to start it, HOt or COLD, Day or Night Insert Key, everything appears to be normal, The dash lights up, appears to pass all the system check that it does on startup but, when I turn to the crank positioin, NOTHING, not even a click, THE SECURITY LIGHT is NOT ON, it has been doing this for about 5 months, When the problem first occured, I would resort to unhooking the battery then reconnect and it would start, but I later discovered that It will start everytime, following this sequence exactly...........Get in car try to start normally when the car wont crank, release the key to the run position, NOT THE OFF POSITION leave the key in this position for 25 seconds, Now after 25 seconds has elapsed, turn key to the off position and immediatly try to start again, It Starts EVERY TIME.........EVERY TIME, I am so frustrated I am okay with electronics, and I have been threw most of the starting circuit (PCM and relays) but I dont think My manual is showing all the circuits involved with starting. Does anybody know of A Timed event problem related to the PCM, that would disable Crank for 25 seconds. No troulbe codes or light. UGHHHHHHH I can read a schematic but I dont think GM is showing everything in the starting circuit.

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  3. #2
    repnatl is offline Cadillac Owners Enthusiast
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    Possible faulty ground at the ecu

  4. #3
    glake89's Avatar
    glake89 is offline Cadillac Owners Connoisseur
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    Re: No Crank No start suggestion....I also have a no crank issue with my 2004 SRX V8

    I'll guess that you have a 'U' code in there. Try opening and re closing the harness connectors at the ECM.
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  5. #4
    stevewhitt1962 is offline Cadillac Owners Member
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    Re: No Crank No start suggestion....I also have a no crank issue with my 2004 SRX V8

    Im gonna check those Glake, I kinda think it is ground related, or short to power, I stumbled across Circuit 447 today, Its in the underhood fuse box, Connector C5. I was checking some voltages with a test light and when I went to check 447 yellow wire, car immediately tried to start, hehehehe, scared the shiiiii out of me, lol. Its the STARTER RELAY COIL CONTROL. I think the ECM controls that circuit by grounding that wire.

  6. #5
    snow333 is offline Cadillac Owners Member
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    Re: No Crank No start suggestion....I also have a no crank issue with my 2004 SRX V8

    Did you get this fixed? I'm having a similar problem.

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