Courtesy Lamp Module (without C97/V4U)

2010 Buick Lucerne CXL, 3.9 1SECTION Courtesy Lamp Module (without C97/V4U)
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Courtesy Lamp Module (without C97/V4U) Connector End View
GM1982445Courtesy of GENERAL MOTORS COMPANY
Courtesy Lamp Module (without C97/V4U)

Pin Wire Circuit Function
1 0.35 RD/WH 951 Courtesy Lamp Relay Control
2 0.35 YE 948 Courtesy Lamp Relay Control
3 0.35 PU 945 Courtesy Lamp Relay Control
4 0.35 D-GN 942 Courtesy Lamp Relay Control
5 0.35 PK 946 Signal Ground
6 0.5 GY/BK 690 Courtesy Lamp Control
7 0.5 BK 850 Ground
8 0.5 OG 1732 12-Volt Reference
9 0.35 BK/WH 943 Signal Ground
10 0.35 BK/GY 952 Signal Ground
11 0.35 BK 949 Signal Ground
12 0.35 RD 950 12-Volt Reference
13 0.35 PK 947 12-Volt Reference
14 0.35 OG/WH 944 12-Volt Reference
15 0.35 L-BU 941 12-Volt Reference
Connector Part Information
  • Harness Type: Instrument Panel
  • OEM Connector: 50-57-9415
  • Service Connector: 19115701
  • Description: 15-Way F SL Series (BK)
Terminal Part Information
  • Terminated Lead: Pending
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 16-02-1110/20
  • Core/Insulation Crimp: H/H
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:

  • 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.