LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2008 >> Corvette Base, 2D Convertible, Standard >> Repair and Diagnosis >> Quick Lookups >> Electrical Component Locations >> Wiring Systems And Power Management - Component Views & Component Connector End Views >> Component Connector End Views >> Engine Control Module (ECM) X1

Engine Control Module (ECM) X1

Fig 1: Engine Control Module (ECM) X1 Connector End View
GM1650395Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X1

Pin Wire Circuit Function
1 0.35 OG/BK 1786 Park/Neutral Signal (MYC)
2-3 - - Not Used
4 0.5 PU/WH 1035 Starter Relay Coil Supply Voltage (MM6/MZ6)
5-8 - - Not Used
9 0.35 WH 17 Stop Lamp Switch Signal
10 0.5 PU/WH 1668 HO2S High Signal Bank 1 Sensor 2
11 0.5 TN/WH 1669 HO2S Low Signal Bank 1 Sensor 2
12 0.35 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
13 0.35 BK/WH 2751 Low Reference
14-15 - - Not Used
16 0.35 D-BU 1936 Fuel Level Sensor Signal - Secondary
17 - - Not Used
18 0.35 YE 43 Accessory Voltage
19 0.5 PK 1439 Ignition 1 Voltage
20 0.5 RD/WH 2440 Battery Positive Voltage
21-22 - - Not Used
23 0.35 PU 1272 Low Reference
24 0.35 D-GN 890 Fuel Tank Pressure Sensor Signal
25-26 - - Not Used
27 0.35 TN 2501 High Speed GMLAN Serial Data Bus -
28 0.35 TN/BK 2500 High Speed GMLAN Serial Data Bus +
29 0.35 D-BU 1161 APP Sensor 1 Signal
30 0.35 BN 1271 Low Reference
31 0.35 TN 2759 Low Reference
32 0.35 L-BU 1162 APP Sensor 2 Signal
33 0.5 GY 2709 5-Volt Reference 1 (6.2L)
0.35 GY 2709 5-Volt Reference 1 (7.0L)
34 0.35 GY 2700 5-Volt Reference 1
35 - - Not Used
36 0.35 TN 1274 5-Volt Reference 1
37 0.35 TN 472 IAT Sensor Signal
38 0.35 TN 2760 Low Reference
39-40 - - Not Used
41 0.35 YE 492 MAF Sensor Signal
42-46 - - Not Used
47 0.35 PK 439 Ignition 1 Voltage (6.2L)
0.5 PK 439 Ignition 1 Voltage (7.0L)
48 0.35 WH 121 Engine Speed Signal
49 0.5 TN 1671 HO2S Low Signal Bank 2 Sensor 2
50 0.35 D-GN/WH 465 Fuel Pump Relay Control
51 - - Not Used
52 0.35 PU/WH 6386 Starter Enable Relay Control
53-55 - - Not Used
56 0.35 WH/BK 1164 5-Volt Reference 2
57 0.35 D-GN/WH 817 Vehicle Speed Signal
58 0.35 D-GN 335 Cooling Fan Relay Control
59 0.35 WH/BK 448 Ignition 1 Relay Control
60 - - Not Used
61 0.35 WH 1310 EVAP Canister Vent Solenoid Control
62 - - Not Used
63 0.35 D-GN/WH 459 A/C Compressor Clutch Relay Control
64 0.5 OG/WH 3223 HO2S Heater Low Control Bank 2 Sensor 2
65 0.5 BN 2391 HO2S Heater Low Control Bank 1 Sensor 2
66 0.5 GY 587 Skip/Shift Solenoid Control (JL5)
67 - - Not Used
68 0.35 BN/WH 419 MIL Control
69 0.5 PU 1670 HO2S High Signal Bank 2 Sensor 2
70 0.35 L-BU 1937 Fuel Level Sensor Signal - Right
71 0.35 YE 400 VSS High Signal
72 0.35 PU 401 VSS Low Signal
73 2 BK/WH 451 Ground
Connector Part Information 
  • OEM: 34566-4403
  • Service: See Catalog
  • Description: 73-Way F MX123 Harness Connector Assembly (BK)
Terminal Part Information 
  • Pins: 4, 6, 9-13, 16, 18-20, 23, 24, 27-34, 36-38, 41, 47-50, 56-59, 61, 63-72
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: Pins 4, 10, 11, 19, 20, 47, 49, 64, 65, 66, 69 - See Terminal Repair Kit
  • Core/Insulation Crimp: Pins 6, 9, 12, 13, 16, 18, 23, 24, 27-34, 36-38, 41, 48, 50, 56-59, 61, 63, 67, 68, 70-72 - H/H
  • Release Tool/Test Probe: J-38125-213/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)
scientia non olet · About LEMON Manuals