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HOMESERVICE MANUALSSATURN2009ASTRA XR, 4D HATCHBACK, AUTOMATICREPAIR AND DIAGNOSISELECTRICALWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - ELECTRICAL CENTER VIEWS & COMPONENT AND HARNESS CONNECTOR END VIEWSCOMPONENT CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) X1
2009 Saturn Astra XR, 4D Hatchback, Automatic

Engine Control Module (ECM) X1

2009 Saturn Astra XR, 4D Hatchback, AutomaticSECTION Engine Control Module (ECM) X1
Fig 1: Engine Control Module (ECM) X1 Connector End View
GM2100090Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X1

Pin Wire Color Circuit No. Function
1 0.5 BU/RD 2121 Ignition Control 1
2 0.5 BU/RD 2121 Ignition Control 1
3 0.5 YE/VT 5041 Intake Manifold Control 1
4 - - Not Used
5 0.5 BU/YE 231 Oil Pressure Switch Signal
6 0.5 BK 808 Low Reference
7 0.5 BU 5042 Intake Manifold Tuning Valve Senser Signal
8 0.5 BU 486 Throttle Position Sensor Signal 2
9 0.5 BU 485 Throttle Position Sensor Signal 1
10 0.5 GY/BK 496 KS Signal
11 0.5 BK 808 Low Reference
12 0.5 BN/GN 472 Intake Air Temperature Sensor Signal
13-14 - - Not Used
15 0.5 BK/WH 474 5 Volt Reference 1
16 0.5 BN/YE 5041 Low Reference
17 0.5 BU/WH 2122 Ignition Control 2
18 0.5 BU/WH 2122 Ignition Control 2
19 0.5 BK/BN 1423 Heated Oxygen Sensor Heater Low Control Sensor 2
20 - - Not Used
21 0.5 BU 633 Camshaft Position Sensor Signal
22 0.5 BU 633 Camshaft Position Sensor Signal
23 0.5 BN/YE 1664 Heated Oxygen Sensor Low Signal Sensor 1
24 0.5 BN/YE 632 Low Reference
25 0.5 BN/YE 2761 Low Reference
26 0.5 BN/YE 632 Low Reference
27 0.5 GY/RD 1716 KS Signal
28 0.5 BK/VT 469 Low Reference
29 0.5 BN/YE 1669 Heated Oxygen Sensor Low Signal Sensor 2
30 - - Not Used
31 0.5 YE/BK 581 Throttle Actuator Control Open
32 0.5 BK/WH 581 Throttle Actuator Control Open
33 0.5 BU/GN 2123 Ignition Control 3
34 0.5 BU/GN 2123 Ignition Control 3
35 0.5 BU 573 Crankshaft Position Sensor Signal 1
36 0.5 BU/WH 1174 Oil Level Switch Signal
37-38 - - Not Used
39 0.5 BN/YE 574 Low Reference
40 0.5 BN/WH 2752 Low Reference
41 0.5 BK/WH 2701 5 Volt Reference 2
42 0.5 BK/WH 474 5 Volt Reference 1
43 0.5 BN/YE 650 Low Reference
44 0.5 BK 808 Low Reference
45 - - Not Used
46 0.5 BN/WH 428 EVAP Canister Purge Solenoid Control
47 0.5 BN/WH 582 Throttle Actuator Control Close
48 0.5 BN/WH 582 Throttle Actuator Control Close
49 0.5 BU/YE 2124 Ignition Control 4
50 0.5 BU/YE 2124 Ignition Control 4
51-52 - - Not Used
53 0.5 BU 1665 Heated Oxygen Sensor High Signal Sensor 1
54 0.5 BU 1668 Heated Oxygen Sensor High Signal Sensor 2
55 0.75 BN/YE 5284 CMP Actuator Solenoid Control Exhaust
56 0.75 BN/YE 5272 CMP Actuator Solenoid Control Intake
57 - - Not Used
58 0.75 BK/BN 676 Heated Oxygen Sensor Heater High Control Sensor 1
59 0.5 GN/WH 492 Mass Air Flow Sensor Signal
60 0.5 BU/RD 410 Engine Coolant Temperature Sensor Signal
61 0.5 BN/BK 1745 Fuel Injector Control 2
62 0.5 BN/VT 1746 Fuel Injector Control 3
63 0.5 BN/YE 844 Fuel Injector Control 4
64 0.5 BN/RD 1744 Fuel Injector Control 1
Connector Part Information 
  • OEM: 15368916
  • Service: 88956567
  • Description: 64-Way F 0.6 Series, Sealed (BK)
Terminal Part Information 
  • Terminal/Tray: Service by Harness - See Part Catalog
  • Release Tool/Test Probe: N/A
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.