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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 837 (ENGINE CONTROLS AND FUEL - 2.2L (L61) - INTRODUCTION (2 OF 2))COMPONENT LOCATORENGINE CONTROL MODULE CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) C2
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Engine Control Module (ECM) C2

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Engine Control Module (ECM) C2
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Control Module (ECM) C2 Connector End Views
GM816165Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) C2 Connector Parts Information

Connector Part Information 
  • OEM: 1928403386
  • Service: See Catalog
  • Description: 64-Way F Bosch Connector (BK)
Engine Control Module (ECM) C2 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 YE 573 CKP Sensor Signal
2 PU 574 Low Reference
3 L-BU/BK 844 Fuel Injector 4 Control
4-6 - - Not Used
7 BK 1744 Fuel Injector 1 Control
8 - - Not Used
9 D-GN/WH 428 EVAP Canister Purge Solenoid Control
10 PK/BK 1746 Fuel Injector 3 Control
11 - - Not Used
12 OG/BK 469 Low Reference
13 BN 582 TAC Motor Control 2
14 BN 582 TAC Motor Control 2
15 YE 581 TAC Motor Control 1
16 YE 581 TAC Motor Control 1
17 - - Not Used
18 D-BU 496 Knock Sensor Signal
19 TN 472 IAT Sensor Signal
20 - - Not Used
21 D-GN 676 HO2S Heater Low Control - Sensor 1
22 GY 1716 Low Reference
23-25 - - Not Used
26 PU 486 TP Sensor 2 Signal
27 WH 423 IC Timing Control 1-4
28-30 - - Not Used
31 RD 225 Generator Turn On Signal
32 - - Not Used
33 RD 1792 Drain Wire
34 L-GN/BK 1745 Fuel Injector 2 Control
35 L-GN 432 MAP Sensor Signal
36 BK/WH 1704 Low Reference
37 - - Not Used
38 BK 2761 Low Reference
39 BK 2760 Low Reference
40 - - Not Used
41 YE 410 ECT Sensor Signal
42 PU 1589 Fuel Level Sensor Signal
43 BK 2752 Low Reference
44 BK/WH 1423 HO2S Heater Low Control - Sensor 2
45 GY 2701 5-Volt Reference - A
46 - - Not Used
47 WH 1310 EVAP Canister Vent Solenoid Control
48 - - Not Used
49 PU 1666 HO2S High Signal - Sensor 1
50 TN 1667 HO2S Low Signal - Sensor 1
51 PU/WH 1668 HO2S High Signal - Sensor 2
52 TN/WH 1669 HO2S Low Signal - Sensor 2
53 - - Not Used
54 BN/WH 633 CMP Sensor Signal
55 D-GN 485 TP Sensor 1 Signal
56 OG 406 IC Timing Control 2-3
57 L-BU/BK 1688 5-Volt Reference - B
58 GY 2704 5-Volt Reference - B
59 D-GN 890 FTP Sensor Signal
60 BK 2759 Low Reference
61 GY 2709 5-Volt Reference - A
62 - - Not Used
63 WH 5290 Ignition 1 Voltage
64 WH 5290 Ignition 1 Voltage
RENDER: 1.0x

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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.
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