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Home >> Cadillac >> 2006 >> XLR Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - 4.6L (LH2) - Introduction (2 Of 2) >> Component Locator >> Engine Control Module Connector End Views >> Engine Control Module (ECM) - C1
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Engine Control Module (ECM) - C1

Fig 1: Powertrain Control Module (PCM) C1 & C3 Connector End View
GM1228485Courtesy of GENERAL MOTORS CORP.
Engine Control Module Connector End Views

Connector Part Information 
  • OEM: 15430219
  • Service: 88953346
  • Description: 56-Way F Micro-Pack 64 Series (BU)
Terminal Part Information 
  • Pins: 1, 2, 5, 7, 10, 11, 13, 14, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 35, 36, 37, 43, 46, 51, 55
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
  • Pins: 48
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
Engine Control Module (ECM) - C1

Pin Wire Color Circuit No. Function
1 TN/BK 2500 High Speed GMLAN Serial Data Bus (+)
2 TN 2501 High Speed GMLAN Serial Data Bus (-)
3-4 - - Not Used
5 TN 1274 5-Volt Reference
6 - - Not Used
7 WH/BK 1164 5-Volt Reference
8-9 - - Not Used
10 WH 1310 EVAP Canister Vent Solenoid Control
11 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
12 - - Not Used
13 WH 17 Stop Lamp Switch Signal
14 YE/BK 625 Starter Enable Relay Control
15-16 - - Not Used
17 PK 439 Ignition 1 Voltage
18 PK 1439 Ignition 1 Voltage
19 PK 1439 Ignition 1 Voltage
20 RD/WH 2440 Battery Positive Voltage
21 L-BU 1162 APP Sensor 2 Signal
22 - - Not Used
23 D-GN/WH 465 Fuel Pump Relay Control
24 BN/WH 419 MIL Control
25 D-GN/WH 459 A/C Compressor Clutch Relay Control
26 WH 121 Engine Speed Signal
27 D-BU 1161 APP Sensor 1 Signal
28 D-GN/WH 817 Vehicle Speed Signal
29 YE 492 MAF Sensor Signal
30 - - Not Used
31 TN 2760 Low Reference
32 BK/WH 2751 Low Reference
33 OG/BK 812 12-Volt Reference
34 - - Not Used
35 GY 2700 5-Volt Reference
36 BN 1271 Low Reference
37 PU 1272 Low Reference
38-42 - - Not Used
43 WH/BK 448 Powertrain Diagnostic Enable
44-45 - - Not Used
46 YE 43 Accessory Voltage
47 - - Not Used
48 BN 5546 Fuel Pump Speed Control Feedback Signal
49-50 - - Not Used
51 TN/BK 472 IAT Sensor Signal
52-54 - - Not Used
55 D-GN 335 Low Speed Cooling Fan Relay Control
56 - - Not Used
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