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Body Control Module (BCM) X2

Fig 1: Body Control Module (BCM) X2 Connector End View
GM1567229Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X2

Pin Wire Circuit Function
A1 0.35 PU 524 Headlamp Dimmer Switch High Beam Signal
A2 0.35 WH 103 Headlamp Switch Headlamps On Signal
A3 0.35 GY 112 Windshield Wiper Switch Signal 1
A4 0.35 BN/WH 230 Instrument Panel Lamps Dimming Control
A5 0.35 YE 183 Front Fog Lamp Indicator Control
A6 0.35 L-BU 2114 Left Rear Turn Signal Lamp Control (without EXP)
0.35 D-BU 184 Rear Fog Lamp Indicator Control (EXP)
A7 0.35 BN/WH 301 Park Lamp Switch Signal
A8 0.35 BN 1356 Flash To Pass Switch Signal
A9 0.35 PU/WH 549 Headlamp Switch Headlamps Off Signal
A10 0.35 PU 719 Low Reference
A11 0.35 D-BU/WH 1495 Dome Override Switch Signal
A12 0.35 PU 328 Interior Lamp Switch Signal
A13 0.35 D-BU/WH 6796 ONSTAR Voice Recognition Switch Signal
A14 0.35 WH 1390 Ignition Voltage
A15-A16 - - Not Used
A17 0.35 BN/WH 1571 Traction Control Switch Signal
A18 0.35 OG 192 Front Fog Lamp Switch Signal
A19 0.35 GY 728 Security Indicator Control
A20-A22 - - Not Used
A23 0.35 L-BU 187 Rear Fog Lamp Switch Signal (EXP)
A24 0.35 L-BU 292 Rear Defog Switch Signal
A25 0.35 BK 28 Horn Relay Control
A26 0.35 D-BU 2115 Right Rear Turn Signal Lamp Control (without EXP)
A27 0.8 GY 8 Instrument Panel Lamps Dimmer Switch Signal
A28 0.35 GY 8 Instrument Panel Lamps Dimmer Switch Signal
A29 0.35 GY 8 Instrument Panel Lamps Dimmer Switch Signal
A30 0.35 GY 8 Instrument Panel Lamps Dimmer Switch Signal
A31 0.35 BN 323 Shift Solenoid Control
A32 0.35 TN 683 Rear Defog Indicator Control
A33 0.35 GY 8 Instrument Panel Lamps Dimmer Switch Signal
A34 0.35 GY 8 Instrument Panel Lamps Dimmer Switch Signal
A35 - - Not Used
A36 0.35 GY 8 Instrument Panel Lamps Dimmer Switch Signal
A37 0.35 WH 278 Ambient Light Sensor Signal
A38 0.35 PU 1807 Class 2 Serial Data
A39 0.35 PU 1807 Class 2 Serial Data
A40 0.5 OG 1732 Inadvertent Power Control
A41 0.5 WH 156 Courtesy Lamp Low Control
A42 0.35 WH/BK 1073 Ignition Key Resistor Signal
A43 0.35 BK 279 Low Reference
A44 0.35 PU 1807 Class 2 Serial Data
A45 0.35 L-BU 1508 Turn Signal Switch Signal
A46 0.5 OG 1732 Courtesy Lamp Control
A47 0.5 WH 156 Courtesy Lamp Low Control
A48 0.35 WH 111 Hazard Switch Signal
B1-B4 - - Not Used
B5 0.5 RD 228 Windshield Washer Pump Control
B6 - - Not Used
B7 0.35 BN 4 Ignition Voltage
B8 0.35 D-BU 338 Ignition Voltage
Connector Part Information 
  • OEM: 15480439
  • Service: 88988604
  • Description: 56-Way F GT 280/Micro 64 Series (GY)
Terminal Part Information 
  • Pins: A1-A48
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64A (L-BU)
  • Pins: B5-B8
  • Terminal/Tray: 15304711/8
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
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