pcmhacking.net

yeah. our early pre 2006 cars used single wire uart comms between abs,bcm,dash cluster so there was a pim module to translate between vpw and uart comms.

in 2006 a new pim was introduced to do CAN 2 uart comms, but the early can used different can id's to what the later ecu/tcm os calibrations used in the full blown CAN comms vehicles. luckily all the settings are still there and just need to be turned back on to transmit or listen.

Cool.
Can the PIM send AC on/of based on state of one of it's inputs simply being high or low?

if you could reprogram it, I'm sure it would be possible as it does have inputs.

Pin Wire Colour Circuit No Function
1 Light Blue Power/Economy
2
3 Red/White Traction Control
4 Grey/Green Cruise Control On/Off
5 Green Tran Control
6
7
8 White/Black Cruise Control Resume\Accel Switch Signal
9 Blue Cruise Control Set\Coast Switch Signal
10 Red/Black Uart Serial Data
11 Purple Crank/Start
12 Blue Reverse Relay
13 Orange/Black Constant 12v
14 Pink Ignition Power
15 Black/Green Ground
16
17 Brown/Black To 6L80 Can High 1
18 Brown/Black To OBDI Plug Can High 2
19 Brown To 6L80 Can Low 1
20 Brown To OBDI Plug Can Low 2