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HOMESERVICE MANUALSCHEVROLET2006CAB & CHASSIS SILVERADO 2D PICKUP, 8.1 G, 4WD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSOEM CONNECTOR END VIEWSPOWERTRAIN CONTROL MODULE (PCM) CONNECTOR END VIEWS (8.1L)POWERTRAIN CONTROL MODULE CONNECTOR END VIEW (PCM) - C1
2006 Chevrolet Cab & Chassis Silverado 2D Pickup, 8.1 G, 4WD, Automatic

Powertrain Control Module Connector End View (PCM) - C1

2006 Chevrolet Cab & Chassis Silverado 2D Pickup, 8.1 G, 4WD, AutomaticSECTION Powertrain Control Module Connector End View (PCM) - C1
Powertrain Control Module (PCM) - C1

GM73173Courtesy of GENERAL MOTORS CORP.
Connector Part Information 
  • OEM: 12191110
  • Service: See Catalog
  • Description: 80-Way F Micro-Pack 100W Sealed (BU)
Pin  Wire Color  Circuit No.  Function 
1 BK/WH 451 Ground
2 L-GN 1867 12-Volt Reference
3 PK/BK 1746 Fuel Injector 3 Control
4 L-GN/BK 1745 Fuel Injector 2 Control
5-6 - - Not Used
7 GY 2705 5-Volt Reference
8-10 - - Not Used
11 L-BU 1876 Knock Sensor 2 Signal
12 D-BU/WH 1869 CKP Sensor Signal
13 OG/BK 463 Requested Torque Signal (A/T)
14 OG/BK 1061 UART Serial Data
15 D-BU/WH 774 UART Serial Data
16-18 - - Not Used
19 PK 439 Ignition 1 Voltage
20 OG 440 Battery Positive Voltage
21 YE/BK 1868 Low Reference
22 L-GN 488 PTO ON Switch Signal (PTO)
23 BK 470 Low Reference
24 BK/WH 451 Ground (NC1/NC8)
25 TN 1671 HO2S Low Signal Bank 2 Sensor 2 (NC1/NC8)
26 TN 1667 HO2S Low Signal Bank 2 Sensor 1
27 BK/WH 451 Ground (NC1/NC8)
28 TN/WH 1669 HO2S Low Signal Bank 1 Sensor 2 (NC1/NC8)
29 TN 1664 HO2S Low Signal Bank 1 Sensor 1
30 L-GN 1478 Coolant Level Switch Signal
31-32 - - Not Used
33 PU 420 TCC Brake Switch/Cruise Control Release Signal
34 OG/BK 1786 Park/Neutral Signal (A/T)
35 GY 48 CPP Switch Signal (M/T)
36 BK 1744 Fuel Injector 1 Control
37 YE/BK 846 Fuel Injector 6 Control
38 - - Not Used
39 YE/BK 625 Starter Enable Relay Control
40 BK/WH 451 Ground
41-42 - - Not Used
43 RD/BK 877 Fuel Injector 7 Control
44 L-BU/BK 844 Fuel Injector 4 Control
45 GY 2700 5-Volt Reference
46 GY 474 5-Volt Reference
47 - - Not Used
48 GY 597 5-Volt Reference
49-50 - - Not Used
51 D-BU 496 Knock Sensor 1 Signal
52 YE 2522 PTO Engage Signal (PTO)
53 - - Not Used
54 OG/BK 469 Low Reference
55-56 - - Not Used
57 OG 440 Battery Positive Voltage
58 D-GN 1049 Class 2 Serial Data
59-60 - - Not Used
61 PK/BK 632 Low Reference
62 - - Not Used
63 BK 2755 Low Reference
64 BK/WH 451 Ground
65 PU 1670 HO2S High Signal Bank 2 Sensor 2 (NC1/NC8)
66 PU 1666 HO2S High Signal Bank 2 Sensor 1
67 BK/WH 451 Ground
68 PU/WH 1668 HO2S High Signal Bank 1 Sensor 2 (NC1/NC8)
69 PU/WH 1665 HO2S High Signal Bank 1 Sensor 1
70 BN 1174 Oil Level Switch Signal
71 L-BU 494 Engine Shut Off Signal (PTO)
72 - - Not Used
73 BN/WH 633 CMP Sensor Signal
74 YE 410 ECT Sensor Signal
75 PK 1020 Ignition 0 Voltage
76 BK/WH 845 Fuel Injector 5 Control
77 D-BU/WH 878 Fuel Injector 8 Control
78 PU 2562 PTO Control (PTO)
79 - - Not Used
80 BK 407 Low Reference
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.