2006 Saturn Ion Red LineFACTORY OEM SERVICE PROCEDURE

Body Control Module (BCM) C1

Body Control Module (BCM) C1

GM878462Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1326143-2
  • 37-Way F Amp (BK)
Pin Wire Color Circuit No. Function
1 - - Not Used
2 OG 840 Battery Positive Voltage
3 YE 243 Accessory Voltage
4 YE 443 Accessory Voltage
5 D-BU 1307 Power Window Master Switch Lockout Control (Sedan)
6 D-BU 1307 Power Window Master Switch Lockout Control (Sedan w/A31)
7 D-BU 1307 Power Window Master Switch Lockout Control (Sedan w/A31)
8-16 - - Not Used
17 OG 1140 Battery Positive Voltage
18 GY 120 Fuel Pump Supply Voltage
19 D-GN/WH 465 Fuel Pump Relay Control
20 OG 1140 Battery Positive Voltage
21 RD 142 Battery Positive Voltage
22 RD 442 Battery Positive Voltage
23 BN 441 Ignition 3 Voltage (A31)
24 - - Not Used
25 PK 1200 Headlamp High Beam Signal
26 L-BU 20 Stop Lamp Switch Signal
27 L-BU 20 Stop Lamp Switch Signal
28 L-BU 20 Stop Lamp Switch Signal
29 L-BU 20 Stop Lamp Switch Signal
30 L-BU 20 Stop Lamp Switch Signal
31 - - Not Used
32 PK 3 Ignition 1 Voltage
33 - - Not Used
34 RD 342 Battery Positive Voltage
35-36 - - Not Used
37 RD 242 Battery Positive Voltage
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.