View Full Version : 2003+ pcm
Harrismarine
September 29th, 2009, 08:17 AM
Hi guys, can someone where to find the pin outs for the 2003+ 1mb (with the green plug).
Cheers Mike :cheers:
nonnieselman
September 29th, 2009, 12:05 PM
PM me your email address
mr.prick
September 29th, 2009, 01:48 PM
6337
I can't remember where I got this or if it is vehicle specific. :shock:
Harrismarine
September 30th, 2009, 07:41 AM
Thanks guys, email sent as well in case there are differences.
I am trying to get the 1mb PCM to work with cable throttle body but am having trouble with the TPS registering, When I hook up the 512 PCM it reads but not when the 1mb PCM is connected, so I was wondering if the pin location was the same???
I dont see it on the diag from mr.prick :doh2:
Mike
mr.prick
September 30th, 2009, 09:27 AM
Comparing a 516k & 1mb they seem to have close to the same pins.
C1 (blue 516k) 46 TPS 5V Reference
C1 (green 1mb) 46 5V Reference
C1 (blue 516k) 60 TPS Low Reference
C1 (green 1mb) 60 Not Used :nixweiss:
C1 (blue 516k) 14 Throttle Actuator Control Serial Data
C1 (green 1mb) 14 UART Serial Data
C1 (blue 516k) 15 Throttle Actuator Control Serial Data
C1 (green 1mb) 15 UART Serial Data
C2 (red 516k) 24 TPS Sensor Signal Pin "C"
C2 (red 1mb) 24 Not Used :nixweiss:
Harrismarine
September 30th, 2009, 11:37 AM
Yeh thats what I got....so how does the 1mb read tps as it has a sensor in the throttle body :shock:
mr.prick
September 30th, 2009, 12:08 PM
I imagine thru one of the UART Serial Data pins. :nixweiss:
Maybe C2 (red) 24 can be used like the 516k :unsure:
I think another question is how will the PCM react without ETC,
aren't all 1mb PCMs ETC only.
nonnieselman
September 30th, 2009, 12:27 PM
didnt reply to email after i found out i can attach a XLS
that should help you out.. lemme know if you need any help
nonnieselman
September 30th, 2009, 12:30 PM
http://holdencrazy.com/EFILive/modifiedTunes.php
Holden crazy has a 06 chevy express van with cable throttle and 1mb pcm..
Harrismarine
September 30th, 2009, 04:32 PM
Awesome thanks,:cheers:
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