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BCM connectors

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Old Dec 27, 2010 | 06:42 PM
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What are the consequences of disconnecting and re-connecting the BCM connectors in the improper order ? Brown first to disconnect and purple first to re-connect...
 
Old Dec 27, 2010 | 06:44 PM
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Shouldn't be any problem either way.
 
Old Dec 27, 2010 | 07:44 PM
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did a heater core in the Blazer(2nd time) Now I have no lights(inside or out)no heater controls/fan no radio no tach/gauges...engine starts and runs. Took it apart again and checked all connections...seem good. 12 volts at battery...was thinking I may have toasted the BCM reconnecting the connectors or battery. Where does BCM get it's power from...distribution block ? Fuse or relay ? hmmmm
 
Old Dec 27, 2010 | 07:49 PM
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What are you driving?
 
Old Dec 28, 2010 | 02:56 PM
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A 2002 Chevrolet Blazer LS 4.3L 4X4
 
Old Dec 28, 2010 | 08:23 PM
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The main power comes from the TBC fuse.
 
Attached Thumbnails BCM connectors-02_bcm_sch.gif  
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