2020 Chevrolet Camaro SS, 2D Coupe, Standard TransFACTORY OEM SERVICE PROCEDURE

K20 Engine Control Module X2 (LT4)

GM1590592Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 12582677
  • Service Connector: 19333090
  • Description: 73-Way F 0.64, 2.8 Series, Sealed (BK)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Name Core Crimp Insulation Crimp
I 19330179 J-35616-64B (LT BU) J-38125-215A Not Available Not Available Not Available Not Available
II 19368324 J-35616-35 (VT) J-38125-11A 7116-4152-02 Yazaki 9 A 5
Pin Size Color Circuit Function Terminal Type ID Option
1 - 2 - - - Not Occupied - -
3 0.5 BK/GN 2919 Fuel Rail Pressure Sensor Low Reference I -
4 - - - Not Occupied - -
5 0.75 GY/BK 3096 Digital Output Speed Sensor 5V Reference I LT4+(MH3/MJK)
6 - 7 - - - Not Occupied - -
8 0.75 GN 3098 Output Speed Signal I LT4+(MH3/MJK)
9 0.5 BN/WH 585 Transmission Fluid Temperature Sensor Signal I LT4+(MH3/MJK)
10 0.5 VT/GY 3110 HO2S High Signal Bank 1 Sensor 1 I -
11 0.5 VT/WH 3210 HO2S High Signal Bank 2 Sensor 1 I -
12 0.5 VT/BU 3120 HO2S High Signal Bank 1 Sensor 2 I -
13 0.5 VT/GN 3220 HO2S High Signal Bank 2 Sensor 2 I -
14 0.5 GY 4109 Driver Mode Switch 5V Reference I -
15 0.5 BN/GY 4008 Humidity Sensor Signal I -
16 0.5 BN/WH 582 Throttle Actuator Close Control I -
17 - - - Not Occupied - -
18 0.5 BN/RD 2917 Fuel Rail Pressure Sensor 5V Reference I -
19 - 20 - - - Not Occupied - -
21 0.75 WH/BK 3097 Digital Output Speed Sensor 5V Reference I LT4+(MH3/MJK)
22 - 24 - - - Not Occupied - -
25 0.5 BK/BN 586 Transmission Fluid Temperature Sensor Low Reference I LT4+(MH3/MJK)
26 0.5 WH/BK 3111 HO2S Low Signal Bank 1 Sensor 1 (3) I -
27 0.5 YE/WH 3211 HO2S Low Signal Bank 2 Sensor 1 I -
28 0.5 WH/YE 3121 HO2S Low Signal Bank 1 Sensor 2 I -
29 0.5 YE/BU 3221 HO2S Low Signal Bank 2 Sensor 2 I -
30 - 31 - - - Not Occupied - -
32 0.5 YE 581 Throttle Actuator Open Control I -
33 - - - Not Occupied - -
34 0.5 BN/RD 2701 Throttle Position Sensor 5V Reference 2 I -
35 - - - Not Occupied - -
36 0.75 VT/GY 496 Knock Sensor 1 Signal I -
37 0.75 WH/GY 1876 Knock Sensor 2 Signal I -
38 0.5 GY/GN 587 Skip Shift Solenoid Actuator Control I LT4+(MH3/MJK)
39 0.5 WH 121 Engine Speed Signal I -
40 - - - Not Occupied - -
41 0.5 GY/WH 3113 HO2S Heater Low Control Bank 1 Sensor 1 I -
42 0.5 GY/WH 3122 HO2S Heater Low Control Bank 1 Sensor 2 I -
43 0.5 GN/WH 432 Manifold Absolute Pressure Sensor Signal I -
44 0.5 GY/RD 2704 Manifold Absolute Pressure Sensor 5V Reference I -
45 0.5 YE/WH 3200 Throttle Inlet Absolute Pressure Sensor Signal I -
46 0.5 GY/BN 2410 Fuel Pump Prime Control I -
47 - 48 - - - Not Occupied - -
49 0.5 WH/BU 6289 Intake Air Temperature Sensor Signal I -
50 0.5 WH/VT 4108 Driver Mode Switch Signal I -
51 0.5 GN/BU 428 EVAP Purge Solenoid Valve Control I -
52 0.5 GN/WH 492 Mass Air Flow Sensor Signal I -
53 0.5 BN 25 Charge Indicator Control I -
54 0.5 BK/BN 2752 Throttle Position Sensor Low Reference I -
55 0.5 GY 23 Generator Field Duty Cycle Signal I -
56 0.75 BK/YE 1716 Knock Sensor 1 Low Reference I -
57 0.75 BK/GY 2303 Knock Sensor 2 Low Reference I -
58 - - - Not Occupied - -
59 0.5 BU 179 Engine Oil Pump Control I -
60 0.5 BN/GN 1174 Oil Level Switch Signal I -
61 0.5 GN/YE 3212 HO2S Heater Low Control Bank 2 Sensor 1 I -
62 0.5 WH/BN 3223 HO2S Heater Low Control Bank 2 Sensor 2 I -
63 0.5 BK/GN 469 Manifold Absolute Pressure Sensor Low Reference I -
64 0.5 WH/RD 3201 Throttle Inlet Absolute Pressure Sensor 5V Reference I -
65 - 66 - - - Not Occupied - -
67 0.5
0.5		 YE
WH/BU		 1457
5726		 Gear Position Sensor Signal 1
Ignition Mode Switch Mode Control Backup		 I
I		 LT4+(MH3/MJK)
LT4+MI4
68 0.5 WH 232 Gear Position Sensor Signal 2 I LT4+(MH3/MJK)
69 0.5 BK/VT 2760 Intake Air Temperature Sensor Low Reference I -
70 0.5 BU/WH 3630 Throttle Position Sensor SENT 1 Signal I -
71 0.5 BN/YE 258 Turbocharger Wastegate Solenoid Valve Control I -
72 - - - Not Occupied - -
73 3 BK/WH 451 Ground 4 II -
Factory Service Tools

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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.

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