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Home >> GMC >> 2006 >> Envoy 4.2 S, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.2L - Introduction (2 Of 2) >> Component Locator >> Powertrain Control Module (PCM) Connectors

Powertrain Control Module (PCM) Connectors

Powertrain Control Module (PCM) C1

GM1228485Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15452125
  • 56-Way F Micro 64 Series Sealed (BU)
Pin Wire Color Circuit No. Function
1-2 - - Not Used
3 GY/BK 1694 4WD Low Signal (NP8)
4-5 - - Not Used
6 D-GN/WH 459 A/C Compressor Clutch Relay Control
7 BN 1271 Low Reference
8 PU 1272 Low Reference
9-10 - - Not Used
11 GY/BK 87 Cruise Control Resume/Accel Switch Signal (K34)
12 PU 1589 Fuel Level Sensor Signal
13 PK 839 Ignition 1 Voltage
14 - - Not Used
15 YE 710 Class 2 Serial Data
16 D-GN 1049 PCM Class 2 Serial Data
17 GY 2700 5-Volt Reference
18 PK 1020 Ignition 0 Voltage
19 PK 439 Ignition 1 Voltage
20 OG 440 Battery Positive Voltage
21 D-GN/WH 817 Vehicle Speed Signal
22 WH 1310 EVAP Canister Vent Solenoid Control
23 D-BU 2364 Cooling Fan Speed Signal
24 D-GN 890 Fuel Tank Pressure Sensor Signal
25 - - Not Used
26 RD/BK 380 A/C Refrigerant Pressure Sensor Signal
27 D-BU 1161 APP Sensor 1 Signal
28 D-BU 84 Cruise Control Set/Coast Switch Signal (K34)
29 OG/BK 510 Low Reference
30 WH/BK 1164 5-Volt Reference
31 WH 121 Engine Speed Signal
32 L-BU 1320 CHMSL Supply Voltage/Stop Lamp Supply Voltage (K34)
33 - - Not Used
34 BN 436 AIR Pump Relay Control (K18)
35-36 - - Not Used
37 D-GN/WH 465 Fuel Pump Relay Control
38 YE 5991 Powertrain Relay Coil Control
39 - - Not Used
40 BN/WH 419 MIL Control
41 L-BU 1162 APP Sensor 2 Signal
42 - - Not Used
43 TN 1274 5-Volt Reference
44-45 - - Not Used
46 PU 420 TCC Brake Switch/Cruise Control Release Signal
47 GY 2709 5-Volt Reference
48 YE/BK 625 Starter Enable Relay Control
49 GY 397 Cruise Control On Switch Signal (K34)
50 PU 806 Crank Voltage
51 WH/BK 2366 Cooling Fan Clutch Control
52-53 - - Not Used
54 D-GN 1433 PNP/Clutch Start Switch Signal
55 BK 2759 Low Reference
56 BK 2751 Low Reference
Powertrain Control Module (PCM) C2

GM1671569Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15452126
  • 73-Way F GT 280 Micro 64 Series Unsealed (BK)
Pin Wire Color Circuit No. Function
1 RD 225 Generator Turn On Signal
2 D-GN 485 TP Sensor 1 Signal
3 - - Not Used
4 GY 597 5-Volt Reference
5 BN/WH 6789 Air Injection Reaction Control Valve #1 Volt Reference (K18)
6 GY 2701 5-Volt Reference
7 PU 486 TP Sensor 2 Signal
8 GY 2704 5-Volt Reference
9 L-BU/BK 1688 5-Volt Reference
10 D-GN/WH 2124 IC 4 Control
11-13 - - Not Used
14 PK/BK 632 Low Reference
15-16 - - Not Used
17 YE 573 CKP Sensor
18 PU 574 Low Reference
19 BK 2199 Low Reference
20 OG/BK 469 Low Reference
21 GY 2365 Low Reference
22 RD 631 12-Volt Reference
23-25 - - Not Used
26 BN/WH 633 CMP Sensor Signal
27 - - Not Used
28 PU 421 Air Injection Reaction Solenoid Relay Coil Control (K18)
29 - - Not Used
30 D-BU/WH 6785 Air Injection Reaction Control Valve #1 Low Reference (K18)
31 - - Not Used
32 TN 1664 HO2S Low Signal
33 BK 1744 Fuel Injector 1 Control
34 - - Not Used
35 YE 410 ECT Sensor Signal
36 BK/WH 1704 Low Reference
37 L-GN 432 MAP Sensor Signal
38 - - Not Used
39 BK 2752 Low Reference
40 PU 2121 IC 1 Control
41 YE 492 MAF Sensor Signal
42 L-BU 2123 IC 3 Control
43 - - Not Used
44 RD/WH 2122 IC 2 Control
45 GY 23 Generator Field Duty Cycle Signal
46 - - Not Used
47 BN 2198 Camshaft Position Actuator Solenoid High Control
48 PU/WH 1665 HO2S High Signal
49-50 - - Not Used
51 TN 472 IAT Sensor Signal
52 BK 2761 Low Reference
53 BK/WH 845 Fuel Injector 5 Control
54 YE/BK 846 Fuel Injector 6 Control
55 PK/BK 1746 Fuel Injector 3 Control
56 L-GN/BK 1745 Fuel Injector 2 Control
57 L-BU/BK 844 Fuel Injector 4 Control
58 D-GN 676 HO2S Heater Low Control
59 D-GN 2125 IC 5 Control
60 L-BU/WH 2126 IC 6 Control
61-63 - - Not Used
64 BK 2760 Low Reference
65 BN 582 TAC Motor Control - 2
66 YE 581 TAC Motor Control - 1
67 - - Not Used
68 D-BU 496 Knock Sensor [1] Signal
69 GY 1716 Low Reference
70 - - Not Used
71 GY 2303 Low Reference
72 L-BU 1876 Knock Sensor 2 Signal
73 BK 450 Ground
Powertrain Control Module (PCM) C3

GM1283894Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15437820
  • 56-Way F Micro 64 Series Sealed (GY)
Pin Wire Color Circuit No. Function
1 PK 1224 Transmission Fluid Pressure Switch Signal A
2 GY 773 Transmission Range Switch Signal C
3 - - Not Used
4 TN/WH 1669 HO2S Low Signal
5 - - Not Used
6 RD/BK 1228 PC Solenoid Valve High Control
7 YE/BK 1227 TFT Sensor Signal
8-14 - - Not Used
15 TN/BK 231 Oil Pressure Switch Signal
16 - - Not Used
17 BK 2762 Low Reference
18 - - Not Used
19 PU/WH 1668 HO2S High Signal
20 BK/WH 771 Transmission Range Switch Signal A
21 WH 687 3-2 Shift Solenoid Valve Control
22-24 - - Not Used
25 TN/BK 422 TCC Solenoid Valve Control
26-29 - - Not Used
30 RD 1225 Transmission Fluid Pressure Switch Signal B
31 YE 6787 Air Injection Reaction Control Valve #1 Control (K18)
32 - - Not Used
33 L-GN 1222 1-2 Shift Solenoid Valve Control
34 TN/BK 464 Delivered Torque Signal
35 YE/BK 1223 2-3 Shift Solenoid Valve Control
36 PU 114 Low Oil Pressure Switch Signal
37 D-GN/WH 428 EVAP Canister Purge Solenoid Control
38 - - Not Used
39 BN 418 TCC PWM Solenoid Valve Control
40-42 - - Not Used
43 D-BU 1225 Transmission Fluid Pressure Switch Signal B
44 L-GN/BK 822 VSS Low Signal
45 PU/WH 821 VSS High Signal
46 BK/WH 1423 HO2S Heater Low Control
47 OG/BK 463 Requested Torque Signal
48 L-BU/WH 1229 PC Solenoid Valve Low Control
49 - - Not Used
50 YE 772 Transmission Range Switch Signal B
51 - - Not Used
52 WH 776 Transmission Range Switch Signal P
53-56 - - Not Used
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