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Home >> Saturn >> 2009 >> Sky Base, Standard >> Repair and Diagnosis (Single Page) >> Electrical >> Fuses & Circuit Breakers >> Wiring Systems And Power Management - Electrical Center Identification & Component Connector And Splice Connector End Views >> Component Connector End Views >> Engine Control Module (ECM) - X1 (LE5)
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Engine Control Module (ECM) - X1 (LE5)

Fig 1: Engine Control Module (ECM) - X1 (LE5) Connector End View
GM1673472Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) - X1 (LE5)

Pin Wire Circuit Function
1 0.35 D-BU 1161 Accelerator Pedal Position Sensor 1 Signal
2 - - Not Used
3 0.35 BN 4 Accessory Voltage
4 - - Not Used
5 0.35 D-GN 335 Low Speed Cooling Fan Relay Control
6 0.5 D-GN/WH 465 Fuel Pump Relay Control
7 - - Not Used
8 0.35 TN 5514 Low Reference (C60)
9 0.5 TN/WH 3121 Heated Oxygen Sensor Low Signal - Sensor 2
10 - - Not Used
11 0.35 OG/D-GN 7360 Manual Transmission Clutch Position Sensor Return (MA5)
12 - - Not Used
13 0.35 YE 5991 Powertrain Relay Coil Control
14 - - Not Used
15 0.5 GY/WH 3122 Heated Oxygen Sensor Heater Low Control - Sensor 2
16 - - Not Used
17 0.5 PU 3120 Heated Oxygen Sensor High Signal Sensor 2
18 0.35 L-BU 1162 Accelerator Pedal Position Sensor 2 Signal
19 0.5 PK 1039 Ignition 1 Voltage
20 0.5 RD/WH 840 Battery Positive Voltage
21 0.35 PU 1272 Low Reference
22-23 - - Not Used
24 0.5 TN 2759 Low Reference
25 0.35 OG/BK 380 A/C Refrigerant Pressure Sensor Signal (C60)
26 - - Not Used
27 0.35 BR/WH 419 MIL Control (C60)
28-29 - - Not Used
30 0.35 D-GN/WH 459 A/C Compressor Clutch Relay Control (C60)
31 - - Not Used
32 0.35 PU/WH 6386 Starter Enable Relay Control
33 - - Not Used
34 0.5 PU 401 Low Reference (MA5)
35-36 - - Not Used
37 0.8 YE 492 Mass Air Flow Sensor Signal
38 - - Not Used
39 0.5 PU 1589 Fuel Level Sensor Signal
40 - - Not Used
41 0.35 BN 1271 Low Reference
42 0.5 D-GN 890 Fuel Tank Pressure Sensor Signal
43 0.5 TN/BK 2500 High Speed GMLAN Serial Data (+)
44 0.5 TN 2501 High Speed GMLAN Serial Data (-)
45 0.35 D-BU/WH 7361 Manual Transmission Clutch Position Sensor Supply (MA5)
46 - - Not Used
47 0.35 WH/BK 1164 5-Volt Reference 2
48 - - Not Used
49 0.35 D-BU 473 High Speed Cooling Fan Control
50-53 - - Not Used
54 0.5 YE 400 Vehicle Speed Sensor High Signal (MA5)
55 0.35 L-BU 20 Stop Lamp Supply Voltage
56 - - Not Used
57 0.35 OG/BK 1786 Transmission Park/Neutral Signal (M82)
58 0.8 L-BU 6289 Induction Air Temperature Sensor Signal
59-60 - - Not Used
61 0.35 L-GN 6338 Manual Transmission Clutch Position Sensor Signal Position (MA5)
62-64 - - Not Used
65 0.35 GY 2700 5-Volt Reference 1 (C60)
66 0.5 GY 2709 5-Volt Reference 1
67 0.35 TN 1274 5-Volt Reference 1
68-69 - - Not Used
70 0.5 WH 1310 Evaporative Emission Canister Vent Solenoid Control
71-72 - - Not Used
73 0.8 PK/BK 5290 Ignition 1 Voltage
Connector Part Information 
  • OEM: 34566-0103
  • Service: 88988931
  • Description: 73-Way F MX123 34566 Series Sealed (BK)
Terminal Part Information 
  • Pins: 6, 9, 15, 19, 20, 34, 39, 42, 44, 54, 66, 70
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J38125-213/J-35616-64B (L-BU)
  • Pins: 1, 3, 5, 8,11, 13, 18, 21, 25, 27, 30, 32, 37, 41, 45, 47, 49, 55, 57, 58, 61, 65, 67
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J38125-213/J-35616-64B (L-BU)
  • Pins: 73
  • Terminal/Tray: 7116-4152-02/9
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: 12094430/J-35616-35 (VT)
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