K38A Chassis Control Module - Auxiliary

2018 Chevrolet Sonic Premier, 4D Sedan, Standard TransSECTION K38A Chassis Control Module - Auxiliary
WARNING: This page is about a different car, the 2017 GMC Canyon and 2017 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
GM3240110
Connector Part Information
  • Harness Type: Chassis
  • OEM Connector: 13582126
  • Service Connector: 19329924
  • Description: 38-Way F 1.5 CTS, 2.8 MCP, 4.8 MCP 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 Not Available Not Available Not Available Not Available Not Available Not Available Not Available
Pin Size Color Circuit Function Terminal Type ID Option
1 2.5 RD/VT 1940 Battery Positive Voltage I -
2 - - - Not Occupied - -
3 0.5 YL/GN 7122 Axle Differential Lock Switch Signal I -
4 0.5 GN/RD 7119 Axle Differential Lock Mode Switch 5V Reference I -
5 - 6 - - - Not Occupied - -
7 0.5 GN/BK 7118 Front Axle Differential Lock Low Reference I -
8 - 9 - - - Not Occupied - -
10 0.5 VT/BK 7121 Rear Axle Differential Lock Low Reference I -
11 0.5 YE 7115 Rear Axle Differential Lock Indicator Control I -
12 0.5 VT/GY 7117 Front Axle Differential Lock Indicator Control I -
13 2.5 BK 650 Ground I -
14 0.5 VT/YE 5985 Accessory Wakeup Serial Data I -
15 0.5 BU/BK 7116 Front Axle Differential Lock Control I -
16 0.5 BU/RD 7632 Integrated Trailer Brake Controller Switch 5V Reference I -
17 0.5 BU/WH 7120 Rear Axle Differential Lock Control I -
18 0.5 BN 7634 Integrated Trailer Brake Controller Redundant Manual Apply Signal I -
19 0.5 BK/BN 7631 Integrated Trailer Brake Controller Switch Low Reference I -
20 0.5 YE 7635 Integrated Trailer Brake Controller Manual Apply Signal I -
21 0.5 GN/BK 7633 Integrated Trailer Brake Controller User Gain Signal I -
22 0.5 YE/BK 2224 Trailer Brake Enable Signal I -
23 0.5 WH/BK 2223 Trailer Brake Control Signal I -
24 - - - Not Occupied - -
25 0.15 VT/GY 139 Run/Crank Ignition 1 Voltage I -
26 0.5 L-BU 2500 High Speed GMLAN Serial Data (+) 1 I -
27 0.5 L-BU 2500 High Speed GMLAN Serial Data (+) 1 I -
28 0.5 WH 2501 High Speed GMLAN Serial Data (-) 1 I -
29 0.5 WH 2501 High Speed GMLAN Serial Data (-) 1 I -
30 0.5 GN/VT 4114 Local Interconnect Network Serial Data Bus 14 I -
31 - 33 - - - Not Occupied - -
34 0.5 GN/BK 7118 Front Axle Differential Lock Low Reference I -
35 0.5 VT/BK 7121 Rear Axle Differential Lock Low Reference I -
36 0.5 BU/BL 7116 Front Axle Differential Lock Control I -
37 0.5 BU/WT 7120 Rear Axle Differential Lock Control I -
38 - - - Not Occupied - -
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.