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Home >> Chevrolet >> 2009 >> HHR SS, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 697 (Wiring Systems And Power Management - Component Connector End Views - 1-2 Shift Solenoid Through Horn Switch) >> Component Connector End Views >> Engine Control Module (ECM) X2 (LE8/LE9) Connector End View

Engine Control Module (ECM) X2 (LE8/LE9) Connector End View

WARNING: This page is about a different car, the 2011 Chevrolet HHR. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Control Module (ECM) X2 (LE8/LE9) Connector End View
GM1590596Courtesy of GENERAL MOTORS COMPANY
Engine Control Module (ECM) X2 (LE8/LE9)

Pin Wire Circuit Function
1-3 - - Not Used
4 0.5 TN 2761 Low Reference
5 0.5 PU 574 Low Reference
6 0.5 TN 1744 Fuel Injector 1 Control
7 0.5 PK/BK 1746 Fuel Injector 3 Control
8 0.5 L-BU/BK 844 Fuel Injector 4 Control
9 0.35 BN 2129 Low Reference
10 0.5 L-GN/BK 1745 Fuel Injector 2 Control
11-12 - - Not Used
13 0.35 GY 2704 5-Volt Reference -1
14 0.5 L-GN 5282 Exhaust Cam Solenoid Control (LE5)
15 0.5 PU 5284 Intake Cam Solenoid Control (LE5)
16 0.5 YE 581 TAC Motor Control - 1
17-19 - - Not Used
20 0.5 TN 5301 Camshaft Position Intake Sensor Low Reference
21 0.5 GY 5296 Camshaft Position Exhaust Sensor Low Reference (LE5)
22 0.35 PU 2121 IC 1 Control
23 0.35 L-BU 2123 IC 3 Control
24 0.35 D-GN/WH 2124 IC 4 Control
25 - - Not Used
26 0.35 OG/WH 2122 IC 2 Control
27-29 - - Not Used
30 0.5 D-GN/WH 428 EVAP Canister Purge Solenoid Control
31 0.35 OG 225 Generator Turn On Signal
32 0.5 BN 582 TAC Motor Control - 2
33 0.5 D-BU 5300 Camshaft Position Intake Sensor Reference Voltage - 1
34 0.5 YE/BK 5297 Camshaft Position Exhaust Sensor Reference Voltage -1 (LE5)
35 0.5 GY 6255 5-Volt Reference - 1
36 - - Not Used
37 0.5 PU/WH 3110 HO2S Reference Voltage (Bank 1 Sensor 1)
38 0.5 PU 3120 HO2S High Signal (Bank 1 Sensor 2)
39 0.35 L-GN 432 MAP Sensor Signal
40 0.35 TN 2752 Low Reference
41 0.5 PU/WH 6256 Low Reference
42 0.35 TN 2760 Low Reference
43 0.35 GY 23 Generator Field Duty Cycle Signal
44 - - Not Used
45 0.5 YE 573 CKP Sensor 1 Signal
46 0.5 OG 5275 Camshaft Position Intake Sensor
47 0.5 D-GN 5273 Camshaft Position Exhaust Sensor (LE5)
48 0.5 TN/WH 3111 HO2S Low Reference (Bank 1 Sensor 1)
49 0.35 OG/BK 469 Low Reference
50 0.5 GY 1716 Knock Sensor Signal Return
51 0.5 D-BU 496 Knock Sensor Signal
52 - - Not Used
53 0.35 GY 2701 5-Volt Reference -2
54 0.5 L-GN 2867 5-Volt Reference -2
55-56 - - Not Used
57 0.35 D-GN 485 TP Sensor 1 Signal
58 0.5 YE 410 ECT Sensor Signal
59 0.35 PU 486 TP Sensor 2 Signal
60 0.5 BN 6753 Intake Cam Solenoid Return (LE5)
61 0.5 BN/WH 6754 Exhaust Cam Solenoid Return (LE5)
62-64 - - Not Used
65 0.5 GY/WH 3113 HO2S Heater Low Control - Bank 1 Sensor 1
66 0.5 GY/WH 3122 HO2S Heater Low Control - Bank 1 Sensor 2
67 0.5 TN/BK 231 Oil Pressure Switch Signal
68 0.5 TN/WH 3121 HO2S Heater Low Control - Bank 1 Sensor 1
69-72 - - Not Used
73 2 BK/WH 451 Signal Ground
Connector Part Information
  • Harness: Engine
  • OEM: 34566-1423
  • Service: 88988372
  • Description: 73-Way F MX123 34566 Series (BK)
Terminal Part Information
  • Pins 9, 13 22-24, 26, 31, 39, 40, 42, 43, 49-51, 53, 57, 59
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pins 4-8, 10, 14-16, 20, 21, 30, 32-38, 41, 45-48, 54, 58, 60-68
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pin 73
  • Terminal/Tray: 7116-4152-02/9
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: 12094430/J-35616-35 (VT)
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