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Reverse lockout operation.

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Old Nov 15, 2009 | 01:47 PM
  #1  
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From: Bahrain
Default Reverse lockout operation.

So I've swaped in L76 with M6, harness and PCM out of a 99 Z28 in my 97SS.
My problem is that the reverse lockout doesn't disengage because it's not recieving ground from the PCM.

It turned out the PCM I got is for an automatic and I already used 4 HPT credits for that PCM 2 of which are for the custom OS.

I have no clutch anticipate switch and not sure if that is required for the reverse lockout to operate as it should.
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Old Nov 15, 2009 | 02:18 PM
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From: Joplin, MO
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Have you looked under the transmission tab in hp tuners at what speed the reverse lock-out engages/dis-engages?
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Old Nov 15, 2009 | 09:42 PM
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Yes, for the auto PCM it is set at 8 and 6 mph, while for the manual it's 3 and 2 mph. I even tried the manual controls at the scanner but it would not disengage. Ran a seperate ground to the solenoid and it worked.
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Old Dec 14, 2009 | 04:36 AM
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The A4 pcm never gives ground to C2 pin 44, hence the reverse lockup will not work.
Reflashed with an M6 base tune and it is working perfect.
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Old Dec 14, 2009 | 06:13 PM
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From: gonzales louisiana
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i grinded the pin down on my reverse lock out
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