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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C1500, 5.3 ZREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1981 (WIRING SYSTEMS AND POWER MANAGEMENT - INLINE HARNESS CONNECTOR END VIEWS - X276 THROUGH X902)INLINE HARNESS CONNECTOR END VIEWSX421 BODY HARNESS TO HEADLINER HARNESS (UVC WITHOUT UVB, WITH E52 OR TB7)
2006 Chevrolet Suburban C1500, 5.3 Z

X421 Body Harness to Headliner Harness (UVC without UVB, with E52 or TB7)

2006 Chevrolet Suburban C1500, 5.3 ZSECTION X421 Body Harness to Headliner Harness (UVC without UVB, with E52 or TB7)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
GM2527914
GM646388
Connector Part Information
  • Harness: Body
  • OEM: 13668279
  • Service: 13577621
  • Description: 10-Way F GT 150 Series (BK)
 Connector Part Information
  • Harness Type: Headliner
  • OEM Connector: 15332158
  • Service Connector: 19153745
  • Description: 10-Way M GT 150 Series (BK)
Terminal Part Information
  • Pins: A-K (except HP2)
  • Terminated Lead: 13575492
  • Release Tool: J-38125-29
  • Diagnostic Test Probe: J-35616-2A (GY)
  • Terminal/Tray: 13673609/Not Available
  • Core/Insulation Crimp: Not Available
  • Pins: A (HP2), F (HP2)
  • Terminated Lead: 13575735
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-2A (GY)
  • Terminal/Tray: 12191812/19
  • Core/Insulation Crimp: E/C
 Terminal Part Information
  • Terminated Lead: 13575502
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-3 (GY)
  • Terminal/Tray: 15304702/19
  • Core/Insulation Crimp: Pins A, B, E, H, K - E/C
  • Core/Insulation Crimp: Pins C, F, G, J - E/4
X421 Body Harness to Headliner Harness (UVC without UVB, with E52 or TB7)

Pin Wire Circuit Function Pin Wire Circuit Function
A 0.5 L-GN 3005 Noise Compensation Microphone Signal (+) A-D 0.35 L-GN 3005 Noise Compensation Microphone Signal (+)
B 0.5 L-BU 3006 Noise Compensation Microphone Signal (+) B 0.35 L-BU 3006 Noise Compensation Microphone Signal (+)
C 0.35 PK/BK 3010 Noise Compensation Microphone Signal (-) C 0.5 PK/BK 3010 Noise Compensation Microphone Signal (-)
D - - Not Used D - - Not Used
E 0.35 WH 7641 Camera Video Signal (+) E 0.35 WH 7641 Camera Video Signal (+)
F 0.5 L-GN/BK 3008 Noise Compensation Microphone Signal (-) F-H 0.5 L-GN/BK 3008 Noise Compensation Microphone Signal (-)
G 0.5 L-BU/BK 3009 Noise Compensation Microphone Signal (-) G 0.5 L-BU/BK 3009 Noise Compensation Microphone Signal (-)
H 0.35 PK 3007 Noise Compensation Microphone Signal (+) H 0.35 PK 3007 Noise Compensation Microphone Signal (+)
J 0.35 BARE 6799 Drain Wire J 0.5 BARE 6799 Drain Wire
K 0.35 D-BU 7642 Camera Video Signal (-) K 0.35 D-BU 7642 Camera Video Signal (-)
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.