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Body Control Module (BCM) C3

Fig 1: Body Control Module (BCM) C3 Connector End View
GM1664498Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) C3 Connector Parts Information

Connector Part Information 
  • OEM: 15482791
  • Service: 88988840
  • Description: 25-Way F HIT Series (L-BU)
Terminal Part Information 
  • Pins: 1-5
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: 6-25
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)
Body Control Module (BCM) C3 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 BK/WH 1851 Ground
2 RD/WH 2140 Battery Positive Voltage
3 RD/WH 3840 Battery Positive Voltage
4 - - Not Used
5 BK/WH 1851 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 I/P Dimming Voltage Reference
13 PU 7062 Brake Pedal Switch Normally Closed Contact Signal
14-15 - - Not Used
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 Serial Data Communication Enable
20 - - Not Used
21 OG 192 Front Fog Lamp Switch Signal
22 L-GN/WH 7158 Cruise Control Indicator Dimming Signal
23-24 - - Not Used
25 PU/WH 6816 Indicator Dimming Control
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