Ignition Control Module (ICM) C1 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162261 6-Way F Metri-Pack 150.2 Series Pull to Seat (BLK)
Pin	Wire Color	Circuit No.	Function
A	TAN/BLK	424	IC Timing Signal
B	WHT	423	IC Timing Control
C-D	-	-	Not Used
E	PPL/WHT	430	Low Resolution Engine Speed Signal
F	RED/BLK	453	Low Reference