I had to clip some wires to get this harness out last summer and now dont remember what these two go to.
Would be G, and H on the ALDL. Red and white respectively.
What are they?
My best guess is G is keyed 12v, and H is a tach signal. Not sure if that is correct though.
Thanks,
Jim
1978 Cherokee chief
Current status = BACK under construction
modified body w/TJ flares
AMC 360, junkyard 7427 TBI w/ 4L80e
NWF doubler w/ upside down 203
SOA D60/14B-FF
custom shackle flip w/F150 springs
H1 wheels + (for now) tires
If anybody has a pinout chart for the ALDL I wouldnt mind seeing that also. I know which is ground and ......................
Never mind just found it in a shop manual.
Jim
1978 Cherokee chief
Current status = BACK under construction
modified body w/TJ flares
AMC 360, junkyard 7427 TBI w/ 4L80e
NWF doubler w/ upside down 203
SOA D60/14B-FF
custom shackle flip w/F150 springs
H1 wheels + (for now) tires
GM 12 Pin ALDL
A - Ground
B - ALDL Test Terminal
C - Air Injection
E - Serial Data 160 baud
F - TCC
G - Fuel Pump
H - Brake Sense Speed Input
M - Serial Data 8192 baud
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
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