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HOMESERVICE MANUALSCADILLAC2005CTS VREPAIR AND DIAGNOSISQUICK LOOKUPSWIRING DIAGRAMSOEM CONNECTOR END VIEWSCONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) CONNECTOR END VIEW C2 (2.8L/3.6L)
2005 Cadillac CTS V

Engine Control Module (ECM) Connector End View C2 (2.8L/3.6L)

2005 Cadillac CTS VSECTION Engine Control Module (ECM) Connector End View C2 (2.8L/3.6L)
Engine Control Module (ECM) Connector End View C2 (2.8L/3.6L)

GM1331455Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403386
  • 64-Way F Bosch (BK)
Pin Wire Color Circuit No. Function
1 PK/BK 5290 Ignition 1 Voltage
2 GY/WH 3122 HO2S Heater Low Control - Bank 1 Sensor 2
3 PK 239 Ignition 1 Voltage
4 D-BU 473 High Speed Cooling Fan Relay Control
5 WH 121 Engine Speed Signal
6 - - Not Used
7 WH/BK 1164 5-Volt Reference A
8 PU 1272 Low Reference
9 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
10 OG 5371 BAS Relay Coil Supply Voltage
11 TN 472 IAT Sensor Signal
12 D-GN 890 Fuel Tank Pressure Sensor Signal
13-14 - - Not Used
15 OG/BK 463 Requested Torque Signal
16 - - Not Used
17 PK/BK 5290 Ignition 1 Voltage
18 OG/WH 3223 HO2S Heater Low Control - Bank 2 Sensor 2
19 D-GN/WH 465 Fuel Pump Relay Control
20 D-GN 335 Low Speed Cooling Fan Relay Control
21 - - Not Used
22 BN 818 Vehicle Speed Signal
23 WH 2500 High Speed GMLAN Serial Data Bus+ (M82)
24 BN 5069 MAIN Relay Control
25 TN 452 Low Reference
26 TN 2760 Low Reference
27 L-BU 1937 Fuel Level Sensor Signal - Secondary
28 - - Not Used
29 PU/WH 1668 HO2S High Signal - Bank 1 Sensor 2
30 - - Not Used
31 YE 5 Crank Voltage
32 OG/BK 1786 Park/Neutral Signal (M82)
33 WH 1310 EVAP Canister Vent Solenoid Control
34 - - Not Used
35 YE 447 Starter Relay Coil Control
36 RD/WH 1440 Battery Positive Voltage
37 TN/BK 464 Delivered Torque Signal
38 - - Not Used
39 GY 596 5-Volt Reference A
40 BN 1271 Low Reference
41 TN 1671 HO2S Low Signal - Bank 2 Sensor 2
42 D-BU 1936 Fuel Level Sensor Signal - Primary
43 YE 492 MAF Sensor Signal
44 L-BU 1162 APP Sensor 2 Signal
45-46 - - Not Used
47 YE/BK 5270 Traction Control Data Signal
48 PU 1807 Class 2 Serial Data
49 D-GN/WH 459 A/C Compressor Clutch Relay Control
50 BN/WH 419 MIL Control
51-54 - - Not Used
55 L-GN 2501 High Speed GMLAN Serial Data Bus- (M82)
56 TN 1274 5-Volt Reference C
57 TN/WH 1669 HO2S Low Signal - Bank 1 Sensor 2
58 YE 343 Accessory Voltage
59 GY 1884 Cruise Control Switch Signal
60 D-BU 1161 APP Sensor Signal 1
61 PU 1670 HO2S High Signal - Bank 2 Sensor 2
62 - - Not Used
63 GY 847 Extended Travel Brake Switch Signal
64 - - Not Used
RENDER: 1.0x

NO RELATED

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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.