LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2008 >> H3 Alpha >> Repair and Diagnosis >> Electrical >> Component Locations >> Component Locations & Connector End Views >> Component Connector End Views >> Body Control Module (BCM) X1
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Body Control Module (BCM) X1

Fig 1: Body Control Module (BCM) X1 Connector End View
GM1567229Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X1

Pin Wire Circuit Function
A1 - - Not Used
A2 0.35 YE 317 Fog Lamp Relay Control
A3 0.5 L-BU 14 Left Turn Signal Lamp Control
A4 - - Not Used
A5 0.35 PK/WH 1970 Headlamp Relay Control
A6 0.35 BK 755 RAP Relay Coil Control
A7 0.5 OG 2040 Battery Positive Voltage
A8 0.35 D-GN 113 Windshield Wiper Switch Signal 2
A9 - - Not Used
A10 0.35 WH 193 Rear Defog Relay Control
A11 0.35 L-BU 244 Passenger Door Lock Switch Lock Control
A12 0.35 WH 194 Door Unlock Control
A13-A17 - - Not Used
A18 0.35 BK/WH 1969 Headlamp High Beam Relay Control
A19 0.5 D-BU 15 Right Turn Signal Lamps Control
A20 0.35 YE 196 Windshield Wiper Motor Park Switch Signal
A21-A23 - - Not Used
A24 0.35 BN/WH 301 Park Lamp Relay Control
A25 - - Not Used
A26 0.35 RD/BK 1594 Ignition Relay Control
A27-A28 - - Not Used
A29 0.5 OG 1732 Inadvertent Power Control
A30 0.5 OG 1732 Inadvertent Power Control
A31 0.8 L-BU 1134 Park Brake Switch Signal
A32 0.35 GY/BK 745 Left Front Door Ajar Switch Signal (LHD)
0.35 L-GN/BK 748 Right Front Door Ajar Switch Signal (RHD)
A33-A35 - - Not Used
A36 0.35 PU 544 DRL Relay Control
A37 0.5 L-BU 20 Stop Lamp Control
A38 0.35 L-GN/BK 748 Right Front Door Ajar Switch Signal (LHD)
0.35 BK 745 Left Front Door Ajar Switch Signal (RHD)
A39 0.35 BK/WH 746 Left Rear Door Ajar Switch Signal
A40 0.35 BK 28 Horn Relay Control
A41 0.35 PU 1807 Class 2 Serial Data
A42 0.35 PU 1807 Class 2 Serial Data
A43 0.35 D-GN/WH 762 A/C Request Signal
A44 0.35 L-BU/BK 747 Right Rear Door Ajar Switch Signal
A45 - - Not Used
A46 0.35 WH 156 Courtesy Lamp Low Control
A47 0.35 PU 1807 Class 2 Serial Data
A48 0.5 BN 2509 Left Rear Park Lamps Control
B1 1 YE 18 Left Rear Stop/Turn Lamp Control (without EXP)
1 YE 618 Left Rear Stop/Turn Lamp Control (EXP)
B2 1 D-GN 19 Right Rear Stop/Turn Lamp Control (without EXP)
1 D-GN 619 Right Rear Stop/Turn Lamp Control (EXP)
B3 0.5 BK/WH 1251 Ground
B4 0.5 RD 228 Windshield Washer Pump Control
B5 1 OG 840 Battery Positive Voltage
B6 0.5 D-BU 338 Ignition Voltage
B7 0.5 BN 4 Ignition Voltage
B8 0.5 OG 1340 Battery Positive Voltage
Connector Part Information 
  • OEM: 15480437
  • Service: 88988604
  • Description: 56-Way F GT 280/Micro 64 Series (BK)
Terminal Part Information 
  • Pins: A2-A6, A8-A48
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64A (L-BU)
  • Pins: A7, B1-B8
  • Terminal/Tray: 15304711/8
  • Core/Insulation Crimp: Pins B3-B4, B6-B8: E/A, Pins A7, B1-B2, B5: 2/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)