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Home >> Chevrolet >> 2014 >> Express 1500 LS, RWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Wiring Systems And Power Management - Component Connector End Views - K17 (Except JL4) To K9 (X1) >> Component Connector End Views >> K20 Engine Control Module (ECM) X1 & X2 >> K20 Engine Control Module X1 (LC8, LMF, L20 or L96)

K20 Engine Control Module X1 (LC8, LMF, L20 or L96)

GM1673472
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 13580802
  • Service Connector: 88988931
  • Description: 73-Way F MX123 34566 Series (BK)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Core Crimp Insulation Crimp
I Pins: 1, 12-13, 23, 29-30, 32, 34, 36, 50, 52, 56-57, 63, 68 - 13575811 J-35616-64B (L-BU) J-38125-213 Pins: 1, 12, 13, 23, 29, 30, 32, 34, 36, 50, 52, 56, 57, 63, 68 - 33467-0003 23 Pins: 9, 16, 18-20, 24, 26-28, 31, 33, 47, 54, 59, 61, 71 - J J
II Service by Harness - See Part Catalog J-35616-35 (VT) J-38125-11A 7116-4152-02 9 A 5
K20 Engine Control Module X1 (LC8, LMF, L20 or L96)

Pin Size Color Circuit Function Terminal Type ID Option
1 0.5 OG/BK 1786 Park/Neutral Signal I -
2-8 - - - Not Occupied - -
9 0.5 L-BU/WH 6311 Torque Converter Clutch (TCC) Brake Signal I -
10 0.8 PU/WH 1668 Heated Oxygen Sensor (HO2S) High Signal - Bank 1 Sensor 2 I -
11 0.8 TN/WH 1669 Heated Oxygen Sensor (HO2S) Low Signal - Bank 1 Sensor 2 I -
12 0.35 OG/BK 380 A/C Refrigerant Pressure Sensor Signal I C60
13 0.35 TN 5514 Low Reference I C60
14-15 - - - Not Occupied - -
16 0.5 PU 1589 Fuel Level Sensor Signal - Primary I -
17 - - - Not Occupied - -
18 0.5 D-BU 5985 Accessory Wakeup Serial Data I -
19 0.5 PK 439 Ignition Voltage I -
20 0.5 RD/WH 440 Battery Positive Voltage I -
21 - - - Not Occupied - -
22 0.8 L-BU/BK 6813 Low Reference I -
23 0.35 PU 1272 Low Reference I -
24 0.5 D-GN 890 Fuel Tank Pressure Sensor Signal I -
25 - - - Not Occupied - -
26 0.5 YE 5361 Brake Apply Sensor Signal - -
27 0.5 TN 2501 High Speed GMLAN Serial Data Bus (-) I -
28 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus (+) I -
29 0.35 D-BU 1161 Accelerator Pedal Position (APP) Sensor 1 Signal I -
30 0.35 BN 1271 Low Reference I -
31 0.5
0.5
TN/BK
TN/BK
2759
6049
Low Reference
Low Reference
I L20 or L96
LMF
32 0.35 L-BU 1162 Accelerator Pedal Position (APP) Sensor 2 Signal I -
33 0.5 GY 2709 5-Volt Reference 1 I -
34 0.35 GY 2700 5-Volt Reference 1 I C60
35 - - - Not Occupied - -
36 0.35 TN 1274 5-Volt Reference 1 I -
37 0.5 TN/WH 472 Intake Air Temperature (IAT) Sensor Signal I -
38 0.8 TN 2760 Low Reference I -
39 0.8 L-GN 2032 Engine Coolant Temperature (ECT) Sensor Signal I -
40 - - - Not Occupied - -
41 0.8 YE 492 Mass Air Flow (MAF) Sensor Signal I -
42 0.5 BN 5360 Brake Apply Sensor Low Reference - -
43-46 - - - Not Occupied - -
47 0.5 PK 1339 Ignition Voltage I -
48 - - - Not Occupied - -
49 0.8 TN 1671 Heated Oxygen Sensor (HO2S) Low Signal - Bank 2 Sensor 2 I -
50 0.35 D-GN/WH 465 Fuel Pump Relay Control - Primary I -
51 - - - Not Occupied - -
52 0.35 YE/BK 625 Starter Enable Relay Control I -
53 - - - Not Occupied - -
54 0.5 WH 5359 Brake Apply Sensor Supply Voltage - -
55 - - - Not Occupied - -
56 0.35 WH/BK 1164 5-Volt Reference 2 I -
57 0.35 YE/BK 1827 Vehicle Speed Signal I -
58 - - - Not Occupied - -
59 0.5 YE 5991 Powertrain Relay Control I -
60 - - - Not Occupied - -
61 0.5 WH 1310 Evaporative Emission (EVAP) Canister Vent Solenoid Control I -
62 - - - Not Occupied - -
63 0.35 D-GN/WH 459 A/C Compressor Clutch Relay Control I C60
64 0.8 OG/WH 3223 Heated Oxygen Sensor (HO2S) Heater Low Control - Bank 2 Sensor 2 I -
65 0.8 GY/WH 3122 Heated Oxygen Sensor (HO2S) Heater Low Control - Bank 1 Sensor 2 I -
66-67 - - - Not Occupied - -
68 0.35 BN/WH 419 MIL Control I -
69 0.8 PU 1670 Heated Oxygen Sensor (HO2S) High Signal - Bank 2 Sensor 2 I -
70 - - - Not Occupied - -
71 0.5 OG/BK 6399 Replicated TOS Signal I -
72 - - - Not Occupied - -
73 3 BK/WH 1551 Ground II -