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Home >> Saturn >> 2007 >> Aura Green Line >> Repair and Diagnosis (Single Page) >> Quick Lookups >> Wiring Diagrams >> OEM Connector End Views (4 Of 5) >> Engine Control Module Connector End Views >> Engine Control Module (ECM) Connector End View C3

Engine Control Module (ECM) Connector End View C3

Fig 1: Engine Control Module (ECM) C3 Connector End View
GM1650395Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) C3 Connector Parts Information

Connector Part Information 
  • OEM: 13588081
  • Service: See Catalog
  • Description: 73-Way F Sealed (GY)
Terminal Part Information 
  • Pins: 2, 21, 23, 24, 33, 35, 37, 39, 40, 46, 48, 49, 53, 55, 57, 59, 60, 65
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
Engine Control Module (ECM) C3 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 - - Not Used
2 PK 1224 Transmission Fluid Pressure Switch Signal A
3-20 - - Not Used
21 TN 5514 Low Reference
22 - - Not Used
23 OG/BK 469 Low Reference
24 TN/BK 6033 Low Reference
25-32 - - Not Used
33 TN 2501 High Speed GMLAN Serial Data Bus-
34 - - Not Used
35 TN 2761 Low Reference
36 - - Not Used
37 GY 2700 5-Volt Reference 2
38 - - Not Used
39 GY 2704 5-Volt Reference 1
40 GY 6034 5-Volt Reference
41-45 - - Not Used
46 OG/BK 1786 Park/Neutral Signal
47 - - Not Used
48 D-GN/WH 428 EVAP Canister Purge Solenoid Control
49 D-GN 335 Low Speed Cooling Fan Relay Control
50-52 - - Not Used
53 TN/BK 2500 High Speed GMLAN Serial Data Bus+
54 - - Not Used
55 YE 410 ECT Sensor Signal
56 - - Not Used
57 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
58 - - Not Used
59 L-GN 432 MAP Sensor Signal
60 YE 2034 Master Cylinder ABS Pressure Sensor Signal
61-64 - - Not Used
65 TN/BK 231 Oil Pressure Switch Signal
66-73 - - Not Used


Fig 1: Engine Control Module (ECM) C3 Connector End View
GM1650395Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) C3 Connector Parts Information

Connector Part Information 
  • OEM: 13542577
  • Service: See Catalog
  • Description: 73-Way F Receptacle 0.64 (BK)
Terminal Part Information 
  • Pins: 7, 15, 21, 24, 29, 32, 33, 37, 46, 49, 50, 53, 57, 64, 65
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pins: 3, 4, 5, 6, 23, 35, 39, 48, 55, 59
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: Pins 3, 4, 5, 6 - K/K
  • Core/Insulation Crimp: Pins 23, 35, 39, 48, 55, 59 - J/J
  • 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)
Engine Control Module (ECM) C3 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1-2 - - Not Used
3 TN/WH 3211 HO2S Low Signal Bank 2 Sensor 1
4 PU/WH 3210 HO2S High Signal Bank 2 Sensor 1
5 PU 3220 HO2S High Signal Bank 2 Sensor 2
6 TN 3221 HO2S Low Signal Bank 2 Sensor 2
7 OG 225 Generator Turn On Signal
8-14 - - Not Used
15 L-GN 3212 HO2S Heater Low Control Bank 2 Sensor 1
16-20 - - Not Used
21 TN 5514 Low Reference
22 - - Not Used
23 OG/BK 469 Low Reference
24 TN/WH 2759 Low Reference
25-28 - - Not Used
29 GY 23 Generator Field Duty Cycle Signal
30-31 - - Not Used
32 OG 6392 IMT Valve Control
33 TN 2501 High Speed GMLAN Serial Data Bus-
34 - - Not Used
35 TN 2761 Low Reference
36 - - Not Used
37 GY 2700 5-Volt Reference
38 - - Not Used
39 GY 2704 5-Volt Reference
40-45 - - Not Used
46 OG/BK 1786 Park/Neutral Signal
47 - - Not Used
48 D-GN/WH 428 EVAP Canister Purge Solenoid Control
49 D-GN 335 Low Speed Cooling Fan Relay Control
50 OG/WH 3223 HO2S Heater Low Control Bank 2 Sensor 2
51-52 - - Not Used
53 TN/BK 2500 High Speed GMLAN Serial Data Bus+
54 - - Not Used
55 YE 410 ECT Sensor Signal
56 - - Not Used
57 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
58 - - Not Used
59 L-GN 432 MAP Sensor Signal
60-63 - - Not Used
64 YE/BK 6806 IMT Valve SIgnal
65 TN/BK 231 Oil Pressure Switch Signal
66-73 - - Not Used
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