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HOMESERVICE MANUALSCHEVROLET2025TRAILBLAZER LS, 1.2L ENG VIN PREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALBODY ELECTRICALCOMPONENT CONNECTOR END VIEWS (K71-M81)COMPONENT CONNECTOR END VIEWSK84 KEYLESS ENTRY CONTROL MODULE X1
2025 Chevrolet Trailblazer LS, 1.2L Eng VIN P

K84 Keyless Entry Control Module X1

2025 Chevrolet Trailblazer LS, 1.2L Eng VIN PSECTION K84 Keyless Entry Control Module X1
GM5109514Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Body Wiring Harness
  • OEM Connector: 31410-0207
  • Service Connector: 13525992
  • Description: 20-Way F 0.64 Series (BN)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I 13584547 J-35616-64B (L-BU) J-38125-215A
Pin Size Color Circuit Function Terminal Type ID Option
1 - - - Not Occupied - -
2 0.5 RD / BN 2940 Battery Positive Voltage I  
3 0.35 GN 5060 Low Speed GMLAN Serial Data I TB5/TC2/UKC/UD7
4 - - - Not Occupied - -
5 0.35 VT / YE 4 Accessory Ignition Voltage I  
6 - - - Not Occupied - -
7 0.35 GY / GN 4083 Retained Accessory Power Relay 2 Coil Control I  
8 - 9 - - - Not Occupied - -
10 0.35 YE / BU 4086 Ignition Mode Switch Challenge Active Signal I  
11 0.35 GN / BK 3558 Passive Start Switch Signal 2 I  
12 0.35 BK / GY 3559 Passive Start Switch 2 Low Reference I  
13 0.35 VT / BK 3 Run/Crank Ignition 1 Voltage I  
14 0.5 BK 5150 Ground I  
15 0.35 GY / BK 3555 Interior Passive Entry Antenna 2 Low Signal I  
16 0.35 BN / BK 3552 Interior Passive Entry Antenna 1 High Signal I  
17 0.35 WH 3553 Interior Passive Entry Antenna 1 Low Signal I  
18 0.35 WH / GN 3556 Interior Passive Entry Antenna 3 High Signal I  
19 0.35 GN 3557 Interior Passive Entry Antenna 3 Low Signal I  
20 0.35 BU 3554 Interior Passive Entry Antenna 2 High Signal I  
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:

  • • 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.