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HOMESERVICE MANUALSCHEVROLET2025TRAILBLAZER ACTIV, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALWIRING DIAGRAMSCOMPONENT CONNECTOR END VIEWS (K71-M81)COMPONENT CONNECTOR END VIEWSK160 BRAKE SYSTEM CONTROL MODULE
2025 Chevrolet Trailblazer ACTIV, 4WD

K160 Brake System Control Module

2025 Chevrolet Trailblazer ACTIV, 4WDSECTION K160 Brake System Control Module
GM4162046Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Body Wiring Harness
  • OEM Connector: 35232279
  • Service Connector: 85090369
  • Description: 46-Way F 1.2 OCS, 2.8 CTS, 4.8 CTA Series, Sealed (GY)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I 13575368 J-35616-35 (VT) J-38125-36
II 19370818 J-35616-12 (BU) J-38125-215A
III 84634921 J-35616-42 (RD) J-38125-212
Pin Size Color Circuit Function Terminal Type ID Option
1 6 BK 250 Ground III  
2 2.5 GN / VT 1988 Right Park Brake Motor Apply Control I  
3 2.5 GY 4368 Right Park Brake Motor Low Reference I  
4 - - - Not Occupied - -
5 0.35 BU / YE 6105 High Speed GMLAN Serial Data [+] 2 II  
6 - - - Not Occupied - -
7 0.75 GY 830 Left Front Wheel Speed Sensor Signal II  
8 0.5 VT / YE 5985 Accessory Wake-Up Serial Data II  
9 0.35 BU / BK 6108 Park Brake Release Switch Signal II  
10 0.5
0.35		 BU
BU		 2500
2500		 High Speed GMLAN Serial Data [+] 1
High Speed GMLAN Serial Data [+] 1		 II
II		 F48
FWD
11 0.5 BU 2500 High Speed GMLAN Serial Data [+] 1 II  
12 2.5 GY / BK 4369 Left Park Brake Motor Low Reference I  
13 2.5 WH 2001 Left Park Brake Motor Apply Control I  
14 6 RD / GY 402 Battery Positive Voltage III  
15 0.35 BN 6107 Park Brake Apply Switch Signal II  
16 - - - Not Occupied - -
17 0.35 BU / VT 1134 Park Brake Switch Signal II  
18 - - - Not Occupied - -
19 0.35 WH 6106 High Speed GMLAN Serial Data [-] 2 II  
20 0.5 GY / YE 7128 Right Rear Wheel Speed Sensor Control II  
21 0.75 GY / WH 7064 Left Front Wheel Speed Sensor Control II  
22 - - - Not Occupied - -
23 0.5 BU 884 Left Rear Wheel Speed Sensor Signal II  
24 0.5
0.35		 WH
WH		 2501
2501		 High Speed GMLAN Serial Data [-] 1
High Speed GMLAN Serial Data [-] 1		 II
II		 F48
FWD
25 0.5 WH 2501 High Speed GMLAN Serial Data [-] 1 II  
26 0.75 YE 872 Right Front Wheel Speed Sensor Signal II  
27 - - - Not Occupied - -
28 0.35 YE / RD 7683 Park Brake Release Switch Voltage Reference II  
29 0.35 YE 1492 Park Brake Switch Supply Voltage II  
30 6 BK 2050 Ground III  
31 - 35 - - - Not Occupied - -
36 0.5 VT / GY 539 Run/Crank Ignition 1 Voltage II  
37 0.5 VT 882 Right Rear Wheel Speed Sensor Signal II  
38 0.5 GN / GY 333 Brake Fluid Level Signal II  
39 0.5 GY / BK 7127 Left Rear Wheel Speed Sensor Control II  
40 - 41 - - - Not Occupied - -
42 0.75 GY / BN 7065 Right Front Wheel Speed Sensor Control II  
43 - - - Not Occupied - -
44 0.35 GY / RD 7684 Park Brake Apply Switch Voltage Reference II  
45 - - - Not Occupied - -
46 6 RD / YE 240 Battery Positive Voltage III  
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.