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Home >> Chevrolet >> 2008 >> Impala SS >> Repair and Diagnosis (Single Page) >> Electrical >> Component Locations >> Wiring Systems And Power Management - Component Views & Component Connector End Views >> Component Connector End Views >> Body Control Module (BCM) X3
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Body Control Module (BCM) X3

Fig 1: Body Control Module (BCM) X3 Connector End View
GM1664498Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X3

Pin Wire Circuit Function
1 0.8 BK/WH 1551 Ground
2 0.8 RD/WH 1640 Battery Positive Voltage
3 0.5 RD/WH 1040 Battery Positive Voltage
4 - - Not Used
5 0.8 BK/WH 1551 Ground
6-7 - - Not Used
8 0.35 TN/BK 2500 High Speed GMLAN Serial Data Bus +
9 0.35 TN 2501 High Speed GMLAN Serial Data Bus -
10 0.35 L-GN/BK 5060 Low Speed GMLAN Serial Data
11 0.35 D-GN 44 Instrument Panel Lamps Dimmer Switch Signal
12 0.35 OG/WH 812 I/P Dimming Voltage Reference
13 0.35 L-GN 526 Stop Lamp Switch Signal
14 0.35 TN 552 Low Reference
15 0.35 GY 598 5-Volt Reference
16 0.35 TN/BK 2500 High Speed GMLAN Serial Data Bus +
17 0.35 TN 2501 High Speed GMLAN Serial Data Bus -
18 0.35 PU/WH 1382 LED Dimming Supply
19 0.35 L-BU 5986 Serial Data Communication Enable (JL9)
20 - - Not Used
21 0.35 OG 192 Front Fog Lamp Switch Signal (T96)
0.5 D-BU/YE 6841 Rear Lamp Flasher Signal (9C1, 9C3)
22 0.35 D-GN/WH 7158 Cruise Control Indicator Dimming Signal
23-25 - - Not Used
Connector Part Information 
  • OEM: 15482791
  • Service: See Catalog
  • Description: 25-Way F Receptacle 0.64 2.8 (L-BU)
Terminal Part Information 
  • Pins: 1, 2, 3, 5
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 21, 22
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64A (L-BU)