K61 Sunroof Control Module (C3U)

2025 Chevrolet Tahoe PPV, RWDSECTION K61 Sunroof Control Module (C3U)
GM5671221Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Sunroof Wiring Harness
  • OEM Connector: 7289-9550-30
  • Service Connector: Service by Harness - See Part Catalog
  • Description: 18-Way F 0.64 GEN-Y, 2.8 YESC Series (BK)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I Not required J-35616-4A (PU) No Tool Required
II Not required J-35616-64B (L-BU) No Tool Required
Pin Size Color Circuit Function Terminal Type ID Option
1 - - - Not Occupied - -
2 2 BK 1050 Ground I -
3 - 6 - - - Not Occupied - -
7 0.35 BU 2854 Body Control Module LIN Bus 8 II -
8 2 BN 1050 Ground I -
9 - - - Not Occupied - -
10 2 OG 4540 Battery Positive Voltage I -
11 2 RD 4540 Battery Positive Voltage I -
12 0.35 BK / BN 128 Sunroof Switch Low Reference II -
13 0.35 RD / WH 5033 Sunroof Obstruction Sensor Voltage Reference II -
14 0.35 VT 5124 Sunroof Obstruction Sensor Signal 2 II -
15 0.35 YE 5034 Sunroof Obstruction Sensor Signal 1 II -
16 - - - Not Occupied - -
17 1.5 BU 3782 Front Sunshade Motor Close Control I -
18 1.5 PK 3781 Front Sunroof Sunshade Motor Open Control I -
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.