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Home >> Cadillac >> 2006 >> STS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 161 (Data Communication System) >> Component Locator >> Data Communication Connector End Views >> Body Control Module (BCM) C3
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Body Control Module (BCM) C3

WARNING: This page is about a different car, the 2007 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Body Control Module (BCM) C3 Connector End Views
GM1664498Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) C3 Connector Part Information

Connector Part Information 
  • OEM: 15482791
  • Service: See Catalog
  • Description: 25-Way F HIT Series (L-BU)
Terminal Part Information 
  • Pins: 8-18
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)
  • Pins: 1-3, 5
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: Pins 1, 3, 5 - E/A
  • Core/Insulation Crimp: Pins 2 - C/A
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
Body Control Module (BCM) C3 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 BK/WH 351 Ground
2 RD/WH 1240 Battery Positive Voltage
3 RD/WH 1140 Battery Positive Voltage
4 - - Not Used
5 BK/WH 351 Ground
6-7 - - Not Used
8 TN/BK 2500 High Speed GMLAN Serial Data Bus+
9 TN 2501 High Speed GMLAN Serial Data Bus-
10 D-GN 5060 Low Speed GMLAN Serial Data
11 D-GN 44 Instrument Panel Lamps Dimmer Switch Signal
12 OG/WH 812 12-Volt Reference or IP Dimming Voltage Reference
13 L-GN 526 Stop Lamp Switch Signal
14 TN 552 Low Reference
15 GY 598 5-Volt Reference
16 TN/BK 2500 High Speed GMLAN Serial Data Bus+
17 TN 2501 High Speed GMLAN Serial Data Bus-
18 YE 6817 LED Backlight Dimming Control
19 L-BU 5986 Data Communication Enable Signal
20-25 - - Not Used
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