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Home >> Buick >> 2012 >> Regal Base >> Repair and Diagnosis (Single Page) >> Quick Lookups >> Wiring Diagrams >> Wiring Systems And Power Management - Component Connector End Views - G14 Through K71 TCM X2 >> Component Connector End Views >> K20 Engine Control Module X1 (LHU)

K20 Engine Control Module X1 (LHU)

GM2470482
Connector Part Information
Terminal Part Information
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 12615654
  • Service Connector: 13574782
  • Description: 73-Way F 0.64 2.8 Series, Sealed (BK with BU Terminal Position Assurance Lock)
Terminal Part Information
  • Pins: 4-6, 9-10, 13-15, 20-22, 25-27, 30, 32-34, 38-40, 42, 44, 46-48, 51-53, 57, 59, 62-63, 66, 68, 70, 72
  • Terminated Lead: Pending
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Pin: 73
  • Terminated Lead: 13576392
  • Release Tool: J-38125-11A
  • Diagnostic Test Probe: J-35616-35 (VT)
  • Terminal/Tray: 7116-4152-02/9
  • Core/Insulation Crimp: A/5
K20 Engine Control Module X1 (LHU)

Pin Size Color Circuit Function Option
1-3 - - - Not Used -
4 0.5 VT 7330 Pre Throttle Air Temp and Press (TMAP) Air Pressure Signal -
5 0.5 GY 7331 5-Volt Reference -
6 0.5 OG/BK 380 A/C Refrigerant Pressure Sensor Signal -
7-8 - - - Not Used -
9 0.5 GN 890 Fuel Tank Pressure Sensor Signal -
10 0.5 GY 2709 5-Volt Reference -
11-12 - - - Not Used -
13 0.5 BU 7329 Pre-Throttle Air Temp and Press (TMAP) Temperature Signal -
14 0.5 WH/BK 1164 5-Volt Reference -
15 0.5 BU 1161 Accelerator Pedal Position Signal (1) -
16-19 - - - Not Used -
20 0.5 WH 7332 Low Reference -
21 0.5 GY 2700 5-Volt Reference -
22 0.5 WH 5514 Low Reference -
23-24 - - - Not Used -
25 0.5 BU 1936 Primary Fuel Level Sensor Signal -
26 0.5 WH 2759 Low Reference -
27 0.5 BU/WH 1937 Secondary Fuel Level Sensor Signal -
28-29 - - - Not Used -
30 0.5 BN 1271 Low Reference -
31 - - - Not Used -
32 0.5 GN/WH 459 A/C Compressor Clutch Relay Control -
33 0.5 WH 1274 5-Volt Reference -
34 0.5 BU 1162 Accelerator Pedal Position Signal (2) -
35-37 - - - Not Used -
38 0.5 WH 1579 Fuel Temperature/Composition Signal -
39 0.5 WH/BK 2500 High Speed GMLAN Serial Data (+) (1) -
40 0.5 WH 2501 High Speed GMLAN Serial Data (-) (1) -
41 - - - Not Used -
42 0.5 BU 473 High Speed Cooling Fan Relay Control -
43 - - - Not Used -
44 0.5 GN/WH 465 Fuel Pump Primary Relay Control -
45 - - - Not Used -
46 0.5 BN/WH 419 Check Engine Indicator Control -
47 0.5 BU/WH 7361 Manual Transmission Clutch Position Sensor Supply -
48 0.5 GN 6338 Manual Transmission Clutch Position Sensor Signal Position -
49-50 - - - Not Used -
51 0.5 PK 139 Run/Crank Ignition 1 Voltage -
52 0.5 RD/WH 140 Battery Positive Voltage -
53 0.5 VT 1272 Low Reference -
54-56 - - - Not Used -
57 0.5 BU/WH 6311 Cruise/ETC/TCC Brake Signal -
58 - - - Not Used -
59 0.5 GN 335 Low Speed Cooling Fan Relay Control -
60-62 - - - Not Used -
63 0.5 VT/WH 6386 Starter Enable Relay (PPEI 3) Control -
64-65 - - - Not Used -
66 0.5 WH 1310 EVAP Canister Vent Solenoid Control -
67 - - - Not Used -
68 0.5 OG/GN 7360 Manual Transmission Clutch Position Sensor Return -
69 - - - Not Used -
70 0.5 YE 143 Accessory Voltage -
71 - - - Not Used -
72 0.5 YE 5991 Powertrain Relay Coil Control -
73 2.5 PK/BK 5290 Powertrain Main Relay Fused Supply (1) -