2006 Chevrolet Uplander BaseFACTORY OEM SERVICE PROCEDURE

Body Control Module (BCM) C1

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Body Control Module C1 Connector End Views
GM1664495Courtesy of GENERAL MOTORS CORP.
Computer/Integrating Systems Connector End Views

Connector Part Information 
  • OEM: 15482789
  • Service: See Catalog
  • Description: 27-Way F 064 (L-GN)
Terminal Part Information 
  • Pins: 2, 3, 4, 5, 6, 8, 9, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64A (L-BU)
Body Control Module (BCM) C1

Pin Wire Color Circuit No. Function
1 - - Not Used
2 WH 1390 Off/Run/Crank Voltage
3 GY 1884 Cruise Control Switch Signal
4 WH/BK 1073 Ignition Key Resistor Signal
5 L-GN 1715 Windshield Wiper Switch High Signal
6 D-BU 1796 Steering Wheel Controls Signal
7 - - Not Used
8 BK/WH 1251 Ground
9 L-BU 1714 Windshield Wiper Switch Low Signal
10-13 - - Not Used
14 PK 3 Ignition 1 Voltage
15 L-BU/WH 1414 Left Front Turn Signal Switch Signal
16 D-BU/WH 1415 Right Front Turn Signal Switch Signal
17 PU 1375 Remote Radio Control Supply Voltage
18 PU 524 Headlamp Dimmer Switch High Beam Signal
19 TN 2144 Hazard Switch Signal
20 - - Not Used
21 BN 4 Accessory Voltage
22-23 - - Not Used
24 PK 94 Windshield Washer Switch Signal
25 BN 1356 Flash To Pass Switch Signal
26 D-GN/WH 1135 A/T Shift Lock Control Solenoid Supply Voltage
27 - - Not Used
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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