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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 927 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 4.3L - INTRODUCTION (2 OF 2))COMPONENT LOCATORPOWERTRAIN CONTROL MODULE CONNECTORSPOWERTRAIN CONTROL MODULE (PCM) - C2
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Powertrain Control Module (PCM) - C2

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Powertrain Control Module (PCM) - C2
WARNING: This page is about a different car, the 2007 GMC Savana and 2007 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Powertrain Control Module (PCM) - C2 Connector End View
GM684875Courtesy of GENERAL MOTORS CORP.
Powertrain Control Module (PCM) - C2 Connector & Terminal Parts Information

Connector Part Information 
  • OEM: 12191110
  • Service: 12167308
  • Description: 80-Way F Micro-Pack 100W Series Sealed (GN)
Terminal Part Information 
  • Terminal/Tray: 12084913/5
  • Core/Insulation Crimp: W/W
  • Release Tool/Test Probe: 12122523/J-35616-6 (BN)
Powertrain Control Module (PCM) - C2 Terminal Identification

Pin Wire Color Circuit No. Function
1 BK/WH 1551 Ground
2 BN 418 TCC PWM Solenoid Valve Control
3-5 - - Not Used
6 OG/BK 1228 PC Solenoid Valve High Control
7 - - Not Used
8 L-BU/WH 1229 PC Solenoid Valve Low Control
9 D-GN/WH 465 Fuel Pump Relay Control - Primary
10-12 - - Not Used
13 L-BU/BK 396 Cruise Control Engaged Signal
14 - - Not Used
15 OG 225 Generator Turn On Signal
16 - - Not Used
17 D-GN/WH 2523 A/C Request Signal (C60)
18-19 - - Not Used
20 PU 401 Signal Low - Front
21 YE 400 Signal High - Front
22-23 - - Not Used
24 D-BU 411 TP Sensor Signal
25 TN 472 IAT Sensor Signal
26 WH 423 IC Timing Control
27-30 - - Not Used
31 YE 492 MAF Sensor Signal
32 L-GN 432 MAP Sensor Signal
33 - - Not Used
34 D-GN/WH 428 EVAP Canister Purge Solenoid Control
35-36 - - Not Used
37 D-GN 83 Cruise Control Inhibit Signal
38 - - Not Used
39 OG 631 12-Volt Reference
40 BK/WH 1551 Ground
41 - - Not Used
42 TN/BK 422 TCC Solenoid Valve Control
43 D-GN/WH 459 A/C Compressor Clutch Relay Control (C60)
44 - - Not Used
45 WH 1310 EVAP Canister Vent Solenoid Control
46 BN/WH 419 MIL Control
47 YE/BK 1223 2-3 Shift Solenoid Valve Control
48 L-GN 1222 1-2 Shift Solenoid Valve Control
49 YE/BK 1827 Vehicle Speed Signal
50 D-GN/WH 817 Vehicle Speed Signal
51 YE/BK 1227 TFT Sensor Signal
52 PU 5035 HO2S Heater Low Control - Bank 1 Sensor 2
53 YE 5036 HO2S Heater Low Control - Bank 2 Sensor 2
54 PU 1589 Fuel Level Sensor Signal
55 D-GN 603 A/C Low Pressure Switch Signal (C60)
56 - - Not Used
57 TN 470 Low Reference
58 TN/WH 331 Oil Pressure Sensor Signal
59 PU 806 Crank Voltage
60-61 - - Not Used
62 GY 773 Transmission Range Switch Signal C
63 PK 1224 Transmission Fluid Pressure Switch Signal A
64 D-GN 890 Fuel Tank Pressure Sensor Signal
65-71 - - Not Used
72 L-BU 5038 HO2S Heater Low Control - Bank 1 Sensor 1
73 - - Not Used
74 PU/WH 5037 HO2S Heater Low Control - Bank 2 Sensor 1
75 GY 23 Generator Field Duty Cycle Signal
76 L-GN/WH 1749 IAC Coil B High Control
77 L-GN/BK 444 IAC Coil B Low Control
78 L-BU/BK 1748 IAC Coil A Low Control
79 L-BU/WH 1747 IAC Coil A High Control
80 - - Not Used
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.