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Old 07-16-2014, 09:02 PM   #16
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Re: bcm chimes no key entry. no fuel pump signal

an my ignition swtch is correct. because its cranking. my car cranksfine, just lost signal . randomly.. an this morning I went out to touch the bcm, an it chimed 3 times. coil has no signal, optispark is brandnew, icm is brandnew, coil is brandew
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Old 07-16-2014, 10:34 PM   #17
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Re: bcm chimes no key entry. no fuel pump signal

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so what more do I have to do to bypass my vats
I have already addressed this in my posts and also with a link in them to VATS info where it is discussed. You seem to ask for help, but not heed any help given. Have you scanned it to see if there is a DTC for loss of the fuel enable signal?
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Old 07-16-2014, 10:39 PM   #18
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Re: bcm chimes no key entry. no fuel pump signal

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Originally Posted by lt1z2897 View Post
an my ignition swtch is correct. because its cranking. my car cranksfine, just lost signal . randomly.. an this morning I went out to touch the bcm, an it chimed 3 times. coil has no signal, optispark is brandnew, icm is brandnew, coil is brandew
Just because it cranks does not mean the switch is in perfect adjustment. There are several positions the switch contacts have to be in for it to operate properly. RUN, START, OFF etc. If it is not making proper contact in the RUN position, some things might not get power. Not saying that this is your trouble, but just saying it is ok does not prove it is. Check the fuses for all things that should have power with the key ON and see if they do. You have to start narrowing things down with some real testing.
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Old 07-17-2014, 01:21 AM   #19
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Re: bcm chimes no key entry. no fuel pump signal

Ok. Thanks man.. yea i checked all fuses an relays.. an i do listen. Im just lost an tired of buying new parts. Im working all alone. Im not mad at yall.. jus tryna figure this out
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Old 07-17-2014, 01:24 AM   #20
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Re: bcm chimes no key entry. no fuel pump signal

Ignition switch is correct. I had my uncle look at it.. 1 more question.. do the bcm suppose to chime wen i bump it or touch it?? I really never seen this b4
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Old 07-17-2014, 07:17 AM   #21
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Re: bcm chimes no key entry. no fuel pump signal

The BCM provides the chime for various warnings. The fact that it chimes with the key off indicates A) it is powered with the key off, indicating a short in the wiring or a problem with the ignition switch when it is in the "off" or "lock" position; B) something that triggers the chime is active, like the key in the ignition with the door open, etc., or there is a short in the wiring at the BCM.

Just curious.... why do you reach under the dash and touch the BCM when you get in the car?
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Old 07-17-2014, 03:09 PM   #22
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Re: bcm chimes no key entry. no fuel pump signal

Nooo. I had pullled my bcm down. Because I was told to check it.. an wen I pulled it down for the first time.. it made the chime. Thats wen I made a weird face. . Its not up its down still attached to the plugs
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Old 07-17-2014, 03:10 PM   #23
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Re: bcm chimes no key entry. no fuel pump signal

Can the bcm itself had a problem? With the relays. Its 4 relays in the box.. I holded the wires so they wouldnt move. An hit the box an it chimed agained
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Old 07-17-2014, 03:10 PM
 
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