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Body Control Module (BCM) X1

Fig 1: Body Control Module (BCM) X1 Connector End View
GM1243543Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X1

Pin Wire Color Circuit No. Function
1 0.35 BK 860 Wiper High Speed Relay Control
2 0.35 WH 1459 Security System Sensor Supply Voltage
3 0.35 PK 1439 Ignition 1 Voltage
4 0.35 BK 28 Horn Relay Control
5 - - Not Used
6 0.35 BK 707 RAP Relay Control
7 0.35 BK/WH 1969 Headlamp High Beam Relay Control
8 0.35 D-GN/WH 1317 Fog Lamp Relay Control
9 0.35 PK/WH 1970 Headlamp Low Beam Relay Control
10 0.35 WH 1080 Park Lamp Relay Control
11 0.35 YE 749 Security Indicator Control
12 0.35 GY 91 Wiper Relay Control
13 0.35 YE 196 Windshield Wiper Motor Park Switch Signal
14 0.35 BK 1835 Security System Sensor Low Reference
15 0.35 L-GN/BK 1137 DRL Ambient Light Sensor Signal
16 0.35 L-GN 526 Stop Lamp Switch Signal
17 0.8 BK 1750 Ground
18 - - Not Used
19 0.5 BK/WH 151 Ground
20 0.8 BK 1950 Ground
21 0.35 YE 5 Crank Voltage
22 0.35 PK 1239 Ignition 1 Voltage
23 0.35 BN 1141 Accessory Voltage
24 0.35 TN 185 Low Washer Fluid Indicator Signal
25 0.35 WH/BK 644 12-Volt Reference
26 0.35 PK/BK 109 Hood Ajar Switch Signal
27 0.35 GY 598 10-Volt Reference
28 0.35 BK 552 Low Reference
29 0.35 BN/WH 230 Instrument Panel Dimming Return
30 0.35 PK 1444 Instrument Panel Dimming Signal
31 0.35 RD/WH 812 Instrument Panel Dimming Voltage Reference
32 - - Not Used
33 0.5 L-GN 5077 Low Reference
34 0.35 BN/WH 1571 Traction Control Switch Signal
35 - - Not Used
36 0.35 PK/BK 1597 Courtesy Lamps Switch On Signal
37 - - Not Used
38 0.35 L-GN 1037 BCM Class 2 Serial Data
39 0.5 WH 17 Stop Lamp Switch Signal
40 0.35 L-GN 80 Key In Ignition Switch Signal
41 0.5 L-BU/WH 1314 Left Front Turn Signal Lamp Supply Voltage
42 0.5 D-BU/WH 1315 Right Front Turn Signal Lamp Supply Voltage
43 0.8 GY/BK 690 Courtesy Lamp Supply Voltage
44 0.8 OG 1732 Inadvertent Power Courtesy Lamp
45 - - Not Used
46 0.8 OG 340 Battery Positive Voltage
47 0.5 RD 228 Windshield Washer Pump Control
48 0.8 GY 8 Instrument Panel Lamp Supply Voltage
49 0.35 D-GN/WH 1135 A/T Shift Lock Control Solenoid Supply Voltage
50 0.8 OG 240 Battery Positive Voltage
51 0.8 OG 2440 Battery Positive Voltage
52 0.8 OG 1240 Battery Positive Voltage
Connector Part Information 
  • OEM: 13545357
  • Service: 88956490
  • Description: 52-Way F (BK)
Terminal Part Information 
  • Pins: 32
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pins: 1-4, 6-16, 21-31, 34-38, 40, 17, 19, 20, 33, 39
  • Terminal/Tray: 638551-1/16
  • Core/Insulation Crimp: Pins 1-4, 6-16, 21-31, 34-38, 40 - J/J
  • Core/Insulation Crimp: Pins 17, 19, 20, 33, 39 - K/K
  • Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)
  • Pins: 41-52
  • Terminal/Tray: 1326030-6/17
  • Core/Insulation Crimp: Pins 41, 42, 47 - E/2
  • Core/Insulation Crimp: Pins 43, 44, 46, 48-52 - E/C
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
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