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Powertrain Control Module (PCM) C1 (3.4L) Connector End View

Powertrain Control Module (PCM) C1 (3.4L) Connector End View

GM15026Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12191111
  • 80-Way F Micro-Pack
  • 100 Series, Sealed (BLU)
Pin Wire Color Circuit No. Function
1 WHT/BLK 2762 Low Reference
2-3 - - Not Used
4 LT GRN 1222 1-2 Shift Solenoid Valve Control
5 DK BLU 473 High Speed Cooling Fan Relay Control
6 DK GRN 335 Low Speed Cooling Fan Relay Control
7 BRN/WHT 633 CMP Sensor Signal
8 PPL/WHT 430 Low Resolution Engine Speed Signal
9 LT BLU/BLK 647 Medium Resolution Engine Speed Signal
10 BRN 2704 5-Volt Reference
11 - - Not Used
12 TAN 808 Low Reference
13 ORN/BLK 469 Low Reference
14-15 - - Not Used
16 BLK/WHT 451 Ground
17 BLK 2760 Low Reference
18 - - Not Used
19 PPL 1500 Ignition 0 Voltage
20 ORN 480 Battery Positive Voltage
21-27 - - Not Used
28 TAN/WHT 3121 HO2S Low Signal
29 TAN/WHT 3111 HO2S Low Signal
30 PPL 420 TCC Brake Switch/Cruise Control Release Signal
31 BLK 2753 Low Reference
32 GRY 435 EGR Solenoid Low Control
33 DK BLU 496 Knock Sensor Signal
34-37 - - Not Used
38 LT GRN/WHT 1749 IAC Coil B High Control
39-42 - - Not Used
43 BLK 1744 Fuel Injector 1 Control
44 YEL/BLK 1223 2-3 Shift Solenoid Valve Control
45 - - Not Used
46 PNK/BLK 1746 Fuel Injector 3 Control
47 LT GRN/BLK 1745 Fuel Injector 2 Control
48 RED/BLK 453 Low Reference
49-52 - - Not Used
53 TAN/BLK 424 IC Timing Signal
54 WHT 423 IC Timing Control
55 DK GRN/WHT 817 Vehicle Speed Signal
56 BLK/WHT 451 Ground
57 BLK/WHT 451 Ground
58 PPL 1807 Class 2 Serial Data
59 - - Not Used
60 BLK/WHT 451 Ground
61 BLK 2752 Low Reference
62 DK BLU/WHT 1231 AT ISS Low Signal
63 RED/BLK 1230 AT ISS High Signal
64 YEL 400 VSS High Signal
65 PPL 401 VSS Low Signal
66-67 - - Not Used
68 YEL 772 Transmission Range Switch Signal B
69 YEL 492 MAF Sensor Signal
70-71 - - Not Used
72 DK GRN 83 Cruise Control Inhibit Signal
73 BLK/WHT 845 Fuel Injector 5 Control
74-75 - - Not Used
76 DK GRN/WHT 428 EVAP Canister Purge Solenoid Control
77-78 - - Not Used
79 YEL/BLK 846 Fuel Injector 6 Control
80 BLK 2751 Low Reference