Cadillac CTS-V 2004-2007 (Gen I) The Caddy with an Attitude...

tach wire

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Old 08-26-2009, 04:23 PM
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Default tach wire

im having trouble making my zex window switch work.. im on connector 2 pin 10 the white wire of the pcm. just wanted to check that i have the right wire
Old 08-26-2009, 05:10 PM
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There should be two pure white wires on that connector. It is one of those but I am not 100% sure which one without looking at it. If you can wait until later tonight I can take a look.
Old 08-26-2009, 07:52 PM
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Old 08-27-2009, 03:41 PM
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awesome! thanks alot
Old 08-29-2009, 01:34 PM
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do u know if this white wire signals only 4 of the coils?? theres 2 white wires on the plug
Old 08-29-2009, 03:41 PM
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The tach wire s the lower one on the connector. The other white wire does not provide RPM signal.
Old 08-30-2009, 02:44 PM
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the only reason i was wondering this is because on the zex window switch you have to set what kind of ignition coil set up u have and the only way it would read the right rpm is if i set it up for 4 coils. so i was sure if one white wire feeds 4 coils and the other feeds 4 coils.

so its the white wire oposite the locking side of the connector?
Old 08-30-2009, 04:49 PM
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It is the exact white wire being pointed to in the picture above.



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