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Home >> Chevrolet >> 2009 >> HHR SS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 577 (Wiring Systems And Power Management - Component Connector End Views - Dome Through Heated Oxygen Sensor) >> Component Connector End Views >> Engine Control Module (ECM) X3 Connector End View

Engine Control Module (ECM) X3 Connector End View

WARNING: This page is about a different car, the 2011 GMC Canyon and 2011 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Control Module (ECM) X3 Connector End View
GM1673472Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X3

Pin Wire Circuit Function
1-2 - - Not Available
3 0.5 TN 1667 HO2S Low Signal - Bank 2 Sensor 1 (LH9)
- - Not Available (LLR or LLV)
4 0.5 PU 1666 HO2S High Signal - Bank 2 Sensor 1 (LH9)
- - Not Available (LLR or LLV)
5 0.5 PU 1670 HO2S High Signal - Bank 2 Sensor 2 (LH9)
- - Not Available (LLR or LLV)
6 0.5 TN 1671 HO2S Low Signal - Bank 2 Sensor 2 (LH9)
- - Not Available (LLR or LLV)
7 0.5 PU 5428 Generator Regulator Control
8 - - Not Available
9 0.5 BN 436 AIR Relay Control (K18)
- - Not Available (LH9)
10-11 - - Not Available
12 0.5 TN/BK 464 Delivered Torque Signal
13-14 - - Not Available
15 0.5 L-GN 3212 HO2S Heater Low Control - Bank 2 Sensor 1 (LH9)
- - Not Available (LLR or LLV)
16 - - Not Available
17 0.5 OG/BK 463 Requested Torque Signal
18-20 - - Not Available
21 0.5 BK 2751 Low Reference
22 - - Not Available
23 0.5 OG/BK 469 Low Reference
24-25 - - Not Available
26 0.5 D-BU/WH 6785 Low Reference (K18)
- - Not Available (LH9)
27 0.5 D-GN/WH 6294 Low Reference (MA5)
- - Not Available (M30)
28 - - Not Available
29 0.5 GY 23 Generator Field Duty Cycle Signal
30-32 - - Not Available
33 0.5 TN 2501 High Speed GMLAN Serial Data Bus -
34 - - Not Available
35 0.5 BK 2761 Low Reference (LH9)
0.35 BK 2761 Low Reference (LLR or LLV)
36 - - Not Available
37 0.5 GY 2700 5-Volt Reference
38 - - Not Available
39 0.5 GY 2704 5-Volt Reference
40-41 - - Not Available
42 0.5 BN/WH 6789 5-Volt Reference (K18)
43 0.5 D-GN 6293 5-Volt Reference (MA5)
- - Not Available (M30)
44-45 - - Not Available
46 0.35 OG/BK 1786 Park/Neutral Signal (M30)
- - Not Available (MA5)
47 - - Not Available
48 0.5 D-GN/WH 428 EVAP Canister Purge Solenoid Control
49 - - Not Available
50 0.5 RD/WH 3223 HO2S Heater Low Control - Bank 2 Sensor 2 (LH9)
- - Not Available (LLR or LLV)
51-52 - - Not Available
53 0.5 TN/WH 2500 High Speed GMLAN Serial Data Bus +
54 - - Not Available
55 0.5 YE 410 ECT Sensor Signal
56 - - Not Available
57 0.5 OG/BK 380 A/C Refrigerant Pressure Sensor Signal (LH9)
0.35 OG/BK 380 A/C Refrigerant Pressure Sensor Signal (LLR or LLV)
58 - - Not Available
59 0.5 L-GN 432 MAP Sensor Signal
60-61 - - Not Available
62 0.5 YE 6787 Air Injection Reaction Control Valve Control (K18)
- - Not Available (LH9)
63 0.5 D-BU 6306 Clutch Pedal Position Signal (MA5)
- - Not Available (M30)
64 - - Not Available
65 0.35 TN/BK 231 Oil Pressure Switch Signal (LLR or LLV)
- - Not Available (LH9)
66 0.5 PU/WH 821 VSS High Signal (MA5)
- - Not Available (M30)
67 0.5 L-GN/BK 822 VSS Low Signal (MA5)
- - Not Available (M30)
68-72 - - Not Available
73 - - Not Used
Connector Part Information 
  • Harness: Engine
  • OEM: 13675624 (LH9)
  • OEM: 13600012 (LLR or LLV with M30)
  • OEM: 13597590 (MA5)
  • Service: 88988372
  • Description: 73-Way F MX123 34566 Series Sealed (GY) with (BK) Case
Terminal Part Information 
  • Pins: 3-7, 9, 12, 15, 17, 21, 23, 26, 27, 29, 33, 35(LH9), 37, 39, 42, 43, 48, 50, 53, 55, 57(LH9), 59, 62, 63, 66, 67
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pins: 35(LLR or LLV), 46, 57(LLR or LLV), 65
  • Terminal/Tray: 33467-0003/23
  • Core/insulation Crimp: H/H
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
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