2005 Pontiac Aztek Base, FWDFACTORY OEM SERVICE PROCEDURE

Powertrain Control Module (PCM) Connector End Views

Powertrain Control Module - C1

GM73173Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12191110
  • 80-Way F Micro-Pack 100 Series Sealed (BU)
Pin Wire Color Circuit No. Function
1 BK 2762 Low Reference
2-3 - - Not Used
4 L-GN 1222 1-2 Shift Solenoid Valve Control
5 D-BU 473 High Speed Cooling Fan Relay Control
6 D-GN 335 Low Speed Cooling Fan Relay Control
7 BN/WH 633 CMP Sensor Signal
8 PU/WH 430 Low Resolution Engine Speed Signal
9 L-BU/BK 647 Medium Resolution Engine Speed Signal
10 GY 2704 5-Volt Reference
11 - - Not Used
12 TN 413 HO2S 1 Low Signal
13 OG/BK 469 Low Reference
14-15 - - Not Used
16 BK/WH 451 Ground
17 BK 2760 Low Reference
18 - - Not Used
19 D-GN 500 Ignition 0 Voltage
20 OG 540 Battery Positive Voltage
21-27 - - Not Used
28 TN/WH 1669 HO2S 2 Low Signal
29 BK 808 Low Reference
30 PU 420 TCC Brake Switch/Cruise Control Release Signal
31 BK 2753 Low Reference
32 GY 435 EGR Solenoid Low Control
33 D-BU 496 Knock Sensor Signal
34-37 - - Not Used
38 L-GN/WH 1749 IAC Coil B High Control
39-42 - - Not Used
43 BK 1744 Fuel Injector 1 Control
44 YE/BK 1223 2-3 Shift Solenoid Valve Control
45 - - Not Used
46 PK/BK 1746 Fuel Injector 3 Control
47 L-GN/BK 1745 Fuel Injector 2 Control
48 RD/BK 453 Low Reference
49-52 - - Not Used
53 TN/BK 424 IC Timing Signal
54 WH 423 IC Timing Control
55 D-GN 389 Vehicle Speed Signal
56 BK/WH 451 Ground
57 BK/WH 451 Ground
58 D-GN 1049 PCM Class 2 Serial Data
59 - - Not Used
60 BK/WH 451 Ground
61 BK 2752 Low Reference
62 D-BU/WH 1231 A/T ISS Low Signal
63 RD/BK 1230 A/T ISS High Signal
64 YE 400 VSS Signal High
65 PU 401 VSS Signal Low
66-67 - - Not Used
68 YE 772 Transmission Range Switch Signal B
69 YE 492 MAF Sensor Signal
70-71 - - Not Used
72 D-GN 83 Cruise Control Inhibit Signal
73 BK/WH 845 Fuel Injector 5 Control
74 L-BU 1296 Axle Actuator Control (AWD)
75 - - Not Used
76 D-GN/WH 428 EVAP Canister Purge Solenoid Control
77-78 - - Not Used
79 YE/BK 846 Fuel Injector 6 Control
80 BK 2751 Low Reference
Powertrain Control Module - C2

GM73173Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12191110
  • 80-Way F Micro-Pack 100 Series Sealed (CL)
Pin Wire Color Circuit No. Function
1 - - Not Used
2 WH 1310 EVAP Canister Vent Solenoid Control
3 D-GN/WH 465 Fuel Pump Relay Control
4 RD 1676 EGR Solenoid High Control
5 BN/WH 419 MIL Control
6 - - Not Used
7 L-BU/WH 1747 IAC Coil A High Control
8-9 - - Not Used
10 PU 412 HO2S 1 High Signal
11 PU/WH 1668 HO2S 2 High Signal
12-15 - - Not Used
16 WH 776 Transmission Range Switch Signal P
17 - - Not Used
18 BK/WH 771 Transmission Range Switch Signal A
19 TN/BK 231 Oil Pressure Switch Signal
20-22 - - Not Used
23 YE 5 Crank Voltage
24 PK 439 Ignition 1 Voltage
25 L-GN 432 MAP Sensor Signal
26 YE 410 ECT Sensor Signal
27 RD/BK 380 A/C Refrigerant Pressure Sensor Signal
28 BN 1456 EGR Valve Position Signal
29 - - Not Used
30 GY 2702 5-Volt Reference
31 - - Not Used
32 GY 2709 5-Volt Reference
33 GY 2701 5-Volt Reference
34 GY 2700 5-Volt Reference
35 BK 2759 Low Reference
36 - - Not Used
37 BK/WH 3113 HO2S 1 Heater Low Control
38 - - Not Used
39 D-GN/WH 459 A/C Compressor Clutch Relay Control
40-41 - - Not Used
42 L-BU/BK 844 Fuel Injector 4 Control
43 - - Not Used
44 L-BU/BK 1748 IAC Coil A Low Control
45 RD/BK 1228 PC Solenoid Valve High Control
46 L-BU/WH 1229 PC Solenoid Valve Low Control
47-48 - - Not Used
49 L-GN/BK 444 IAC Coil B Low Control
50 TN 472 IAT Sensor Signal
51-54 - - Not Used
55 D-GN 890 Fuel Tank Pressure Sensor Signal
56 GY 773 Transmission Range Switch Signal C
57-58 - - Not Used
59 WH 85 Cruise Control Engaged Signal
60 - - Not Used
61 RD 225 Generator Turn On Signal
62 - - Not Used
63 YE 657 TCC Release Switch Signal
64-65 - - Not Used
66 D-BU 417 TP Sensor Signal
67 - - Not Used
68 YE/BK 1227 TFT Sensor Signal
69 PU 1589 Fuel Level Sensor Signal
70 L-GN 1867 12-Volt Reference
71 - - Not Used
72 RD/WH 812 12-Volt Reference
73 BK 407 Low Reference
74 YE/BK 1868 Low Reference
75 BN 436 AIR Pump Relay Control
76 YE/BK 625 Crank Relay Control
77 - - Not Used
78 BN 418 TCC PWM Solenoid Valve Control
79 - - Not Used
80 BK 808 Low Reference
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