2008 Chevrolet Chevy Express G2500, Van Cargo Extended, 6.0 KFACTORY OEM SERVICE PROCEDURE

Body Control Module (BCM) X5

Fig 1: Body Control Module (BCM) X5 Connector End View
GM1664500Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X5

Pin Wire Circuit Function
1 1 YE 618 Left Rear Turn Signal Lamp Control
2 1 D-GN 619 Right Rear Turn Signal Lamp Control
3 - - Not Used
4 0.8 L-BU/WH 1314 Left Front Turn Signal Lamp Control
5 0.5 WH 5065 Stop Lamps Control
6 0.35 L-BU/WH 6311 Torque Converter Clutch (TCC) Brake Signal
7-10 - - Not Used
11 0.35 YE 43 Ignition Voltage
12 - - Not Used
13 0.35 OG 300 Ignition Voltage
14-15 - - Not Used
16 0.35 L-BU 1134 Park Brake Switch Signal
17 - - Not Used
18 0.35 TN 28 Horn Relay Control
19 - - Not Used
20 0.35 GY 91 Windshield Wiper Switch Signal 2
21 0.35 TN 860 Front Windshield Wiper Switch High Signal
22 - - Not Used
23 0.35 PK/WH 1970 Headlamp Low Beam Relay Control
24 0.35 D-BU 45 Park Lamp Control
25 - - Not Used
Connector Part Information 
  • OEM: 15480179
  • Service: See Catalog
  • Description: 25-Way F HIT Series (BN)
Terminal Part Information 
  • Pins: 6, 11, 13, 15, 16, 18-21, 23, 24
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)
  • Pins: 1, 2, 4, 5
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: Pins 1, 2 - C/A
  • Core/Insulation Crimp: Pins 4, 5 - E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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