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Home >> Chevrolet >> 2007 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 1191 (Component Connector End Views (2 Of 4)) >> Engine Control Module (ECM) X2 (LY7)
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Engine Control Module (ECM) X2 (LY7)

WARNING: This page is about a different car, the 2008 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Control Module (ECM) X2 (LY7) Connector End View
GM1650395Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X2 (LY7)

Pin Wire Circuit Function
1 0.35 PU 2121 IC 1 Control
2 0.8 TN/WH 3111 HO2S Low Signal Bank 1 Sensor 1
3 0.8 PU/WH 3110 HO2S High Signal Bank 1 Sensor 1
4 0.8 PU 3120 HO2S High Signal Bank 1 Sensor 2
5 0.8 TN/WH 3121 HO2S Low Signal Bank 1 Sensor 2
6 0.5 L-BU 1876 KS 2 Signal
7 0.5 GY 2303 KS 2 Signal
8 0.5 D-BU 496 KS 1 Signal
9 0.5 GY 1716 KS 1 Signal
10 - - Not Used
11 0.8 YE 581 TAC Motor Control - 1
12 0.8 BN 582 TAC Motor Control - 2
13 0.8 PK/BK 5290 Ignition 1 Voltage
14 0.35 PU 5284 CMP Actuator Solenoid Signal Bank 1 Intake
15 0.35 OG/BK 5272 CMP Actuator Solenoid Signal Bank 2 Intake
16 - - Not Used
17 0.35 OG/WH 2122 IC 2 Control
18 - - Not Used
19 0.5 PK 6414 ECM Low Reference
20 0.5 GY 5296 CMP Sensor Low Reference Bank 1 Exhaust
21 0.5 BN/WH 5303 CMP Sensor Low Reference Bank 2 Intake
22 0.5 BN 5299 CMP Sensor Low Reference Bank 2 Exhaust
23 0.5 TN 5301 CMP Sensor Low Reference Bank 1 Intake
24 0.35 BK 2755 Low Reference
25-26 - - Not Used
27 0.35 PU 574 Low Reference
28 - - Not Used
29 0.35 TN 2752 Low Reference
30 0.35 BN/WH 6754 CMP Actuator Solenoid Bank 1 Exhaust
31 0.35 D-BU 6755 CMP Actuator Solenoid Bank 2 Exhaust
32 0.5 L-BU/BK 844 Fuel Injector 4 Control
33 0.35 L-BU 2123 IC 3 Control
34 0.35 L-BU/WH 2126 IC 6 Control
35 0.5 PU 6413 Low Reference
36 0.5 YE/BK 5297 CMP Sensor 5-Volt Reference Bank 1 Exhaust
37 0.5 L-BU 5302 CMP Sensor 5-Volt Reference Bank 2 Intake
38 0.5 L-GN 5298 CMP Sensor 5-Volt Reference Bank 2 Exhaust
39 0.5 D-BU 5300 CMP Sensor 5-Volt Reference Bank 1 Intake
40-41 - - Not Used
42 0.5 TN/BK 2760 Low Reference
43 0.35 L-GN 2867 12-Volt Reference
44 0.35 GY 2701 5-Volt Reference
45 - - Not Used
46 0.35 BN 6753 CMP Actuator Solenoid Bank 1 Intake
47 0.35 D-BU/WH 6756 CMP Actuator Solenoid Bank 2 Intake
48 0.5 L-GN/BK 1745 Fuel Injector 2 Control
49 0.5 YE/BK 846 Fuel Injector 6 Control
50 0.35 L-GN 5282 CMP Actuator Solenoid Signal Bank 1 Exhaust
51 0.35 WH/BK 5283 CMP Actuator Solenoid Signal Bank 2 Exhaust
52 0.5 TN/WH 845 Fuel Injector 5 Control
53 0.35 D-GN/WH 2124 IC 4 Control
54 0.35 D-GN 2125 IC 5 Control
55 - - Not Used
56 0.5 D-GN 5273 CMP Signal Bank 1 Exhaust
57 0.5 YE 5276 CMP Signal Bank 2 Intake
58 0.5 PU 5274 CMP Signal Bank 2 Exhaust
59 0.5 OG 5275 MAP Sensor Signal
60-61 - - Not Used
62 0.5 TN 472 IAT Sensor Signal
63 0.35 YE 573 CKP Sensor 1 Signal
64 0.35 D-GN 485 TP Sensor 1 Signal
65 - - Not Used
66 0.35 PU 486 TP Sensor 2 Signal
67 0.5 YE 492 MAF Sensor Signal
68 0.35 GY/WH 3113 HO2S Heater Low Control Bank 1 Sensor 1
69 0.35 GY/WH 3122 HO2S Heater Low Control Bank 1 Sensor 2
70 - - Not Used
71 0.5 PK/BK 1746 Fuel Injector 3 Control
72 0.5 TN 1744 Fuel Injector 1 Control
73 2 BK/WH 451 Ground
Connector Part Information 
  • OEM: 13547243
  • Service: See Catalog
  • Description: 73-Way F Receptacle 0.64 2.8 Series Sealed (BK)
Terminal Part Information 
  • Pins: 1, 14, 15, 17, 24, 27, 29, 30, 31, 33, 34, 43, 44, 46, 47, 50, 51, 53, 54, 63, 64, 66, 68, 69
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pins: 1, 14, 17, 20, 23, 24, 27, 29, 30, 33, 35, 36, 39, 42, 43, 44, 46, 50, 53, 56, 59, 62, 63, 64, 66, 67, 2, 3, 8, 12, 13, 16, 21, 22, 24, 32, 33, 34, 35, 41, 43, 44, 50, 52, 53, 58, 61, 63, 64, 65, 66, 68, 69, 70, 71, 72, 78
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: Pins 1, 14, 17, 20, 23, 24, 27, 29, 30, 33, 35, 36, 39, 42, 43, 44, 46, 50, 53, 56, 59, 62, 63, 64, 66, 67 - H/H
  • Core/Insulation Crimp: Pins 2, 3, 8, 12, 13, 16, 21, 22, 24, 32, 33, 34, 35, 41, 43, 44, 50, 52, 53, 58, 61, 63, 64, 65, 66, 68, 69, 70, 71, 72, 78 - H/H
  • Core/Insulation Crimp: Pins 17, 18, 19, 20, 26, 27, 29, 30, 37, 40 - J/J
  • Core/Insulation Crimp: Pins 6, 7, 8, 9, 19, 20, 21, 22, 23, 32, 35, 36, 37, 38, 39, 42, 48, 49, 52, 56, 57, 58, 59, 62, 67, 71, 72 - J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pins: 2, 3, 4, 5, 8, 9, 32, 48, 68, 69, 71, 72, 11, 12, 13, 17, 18, 19, 20, 26, 27, 29, 30, 37, 40, 6, 7, 8, 9, 19, 20, 21, 22, 23, 32, 35, 36, 37, 38, 39, 42, 48, 49, 52, 56, 57, 58, 59, 62, 67, 71, 72
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: Pins 2, 3, 4, 5, 8, 9, 32, 48, 68, 69, 71, 72 - J/J
  • Core/Insulation Crimp: Pins 11, 12, 13 - K/K
  • Core/Insulation Crimp: Pins 17, 18, 19, 20, 26, 27, 29, 30, 37, 40 - J/J
  • Core/Insulation Crimp: Pins 6, 7, 8, 9, 19, 20, 21, 22, 23, 32, 35, 36, 37, 38, 39, 42, 48, 49, 52, 56, 57, 58, 59, 62, 67, 71, 72 - J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
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