2007 Chevrolet Impala LS, 3.5 NFACTORY OEM SERVICE PROCEDURE

Engine Control Module (ECM) Connector End View C2

Fig 1: Engine Control Module (ECM) C2 Connector End Views
GM1650398Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) C2 Connector Parts Information

Connector Part Information 
  • OEM: 13511426
  • Service: See Catalog
  • Description: 80-Way F 0.64 2.8 Series, Sealed (GY)
Terminal Part Information 
  • Pins: 1, 14, 17, 23, 27, 33, 35, 39, 42, 43, 46, 59, 62, 63, 67
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pins: 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 24, 29, 32, 40, 44, 48, 49, 52, 60, 64, 66, 68, 69, 71, 72
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pins: 73
  • Terminal/Tray: 7116-4152-02/9
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
Engine Control Module (ECM) C2 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 - - Not Used
2 PU/WH 6270 5-Volt Reference 2
3 GY 2701 5-Volt Reference 2
4 - - Not Used
5 YE 581 TAC Motor Control - 1
6 BN 582 TAC Motor Control - 2
7 - - Not Used
8 D-GN/WH 428 EVAP Canister Purge Solenoid Control
9-11 - - Not Used
12 GY/WH 3113 HO2S Heater Low Control Sensor 1
13-15 - - Not Used
16 BN 2198 Camshaft Position Actuator Solenoid High Control
17 L-GN/BK 1745 Fuel Injector 2 Control
18 YE/BK 846 Fuel Injector 6 Control
19 TN/WH 845 Fuel Injector 5 Control
20 TN 1744 Fuel Injector 1 Control
21 YE 410 ECT Sensor Signal
22 TN 2761 Low Reference
23-25 - - Not Used
26 D-BU 496 Knock 1 Sensor Signal
27 GY 1716 Knock 1 Sensor Signal
28 - - Not Used
29 L-BU 1876 Knock 2 Sensor Signal
30 GY 2303 Knock 2 Sensor Signal
31 - - Not Used
32 GY 23 Generator Field Duty Cycle Signal
33 BN 1174 Oil Level Switch Signal
34 BK 2577 Low Reference
35 TN 2752 Low Reference
36 - - Not Used
37 L-BU/BK 844 Fuel Injector 4 Control
38-39 - - Not Used
40 PK/BK 1746 Fuel Injector 3 Control
41 GY 2705 5-Volt Reference 1
42 - - Not Used
43 GY 2704 5-Volt Reference 1
44 D-BU 6259 5-Volt Reference 1
45-49 - - Not Used
50 TN/WH 331 Oil Pressure Sensor Signal
51 - - Not Used
52 TN 2199 Low Reference
53 OG/BK 469 Low Reference
54-55 - - Not Used
56 TN/WH 3111 HO2S Low Signal Sensor 1
57 PU/WH 3110 HO2S High Signal Sensor 1
58 L-GN 432 MAP Sensor Signal
59-60 - - Not Used
61 OG 225 Generator Turn On Signal
62 - - Not Used
63 PU 486 TP Sensor 2 Signal
64 BN/WH 633 CMP Sensor Signal
65 D-GN 485 TP Sensor 1 Signal
66 PK/BK 632 Low Reference
67 - - Not Used
68 WH/BK 6271 CKP Sensor Signal
69 GY/BK 6272 Low Reference
70 PU 2121 IC 1 Control
71 OG/WH 2122 IC 2 Control
72 L-BU 2123 IC 3 Control
73-77 - - Not Used
78 YE 2174 Low Reference
79-80 - - Not Used
Factory Service Tools

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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.

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