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Home >> Saturn >> 2004 >> Ion Red Line >> Repair and Diagnosis >> External Pages >> Different car >> Section 110 (Data Communication System) >> Visual Identification >> Data Communication Connector End Views >> Body Control Module (BCM) C4
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Body Control Module (BCM) C4

WARNING: This page is about a different car, the 2007 Saturn Ion Red Line, 2007 Saturn Ion 3, and 2007 Saturn Ion 2. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Body Control Module (BCM) C4 Connector End View
GM878468Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) C4 Connector & Terminal Parts Information

Connector Part Information 
  • OEM: 1326144-2
  • Service: See Catalog
  • Description: 56-Way F Amp (GY)
  • 1241495-2 28-Way F (GY)
  • 1241494-2 28-Way F (BU)
Terminal Part Information 
  • Pins: 1, 2, 4-7, 9, 35, 48-50, 52, 53, 55
  • Terminal/Tray: 968074-5/17
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-4A (PU)
  • Pins: 47
  • Terminal/Tray: 968075-5/17
  • Core/Insulation Crimp: 2/4
  • Release Tool/Test Probe: 12031876-1/J-35616-4A (PU)
  • Pins: 11, 12, 23, 43, 44, 45, 13- 20, 22, 27, 29, 30-34, 36, 37, 39, 40-42, 46
  • Terminal/Tray: 928999-5/15
  • Core/Insulation Crimp: Pins 11, 12, 23, 28, 43, 44, 45 - J/J
  • Core/Insulation Crimp: Pins 13-20, 22, 27-29, 30-34, 36, 37, 39, 40, 41, 42, 46 - H/H
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)
Body Control Module (BCM) C4 Terminal Identification

Pin Wire Color Circuit No. Function
1 RD 228 Windshield Washer Pump Control
2 BN 9 Park Lamp Supply Voltage
3 - - Not Used
4 BN 9 Park Lamp Supply Voltage
5 BN 9 Park Lamp Supply Voltage (T82)
6 BN 4 Accessory Voltage
7 D-BU 338 Run/Crank Voltage
8 - - Not Used
9 BN/WH 230 Instrument Panel Lamps Dimming Control
10 - - Not Used
11 YE 18 Left Turn Signal Lamps Supply Voltage
12 D-GN 19 Right Turn Signal Lamps Supply Voltage
13 GY 8 Instrument Panel Lamps Supply Voltage
14 GY 8 Instrument Panel Lamps Supply Voltage
15 GY 8 Instrument Panel Lamps Supply Voltage
16 GY 8 Instrument Panel Lamps Supply Voltage
17 GY 8 Instrument Panel Lamps Supply Voltage
18 PU 1807 BCM Class 2 Serial Data
19 PU 1807 BCM Class 2 Serial Data
20 PU 1807 BCM Class 2 Serial Data
21 - - Not Used
22 L-GN 66 A/C Request Signal (C60)
23 PK/WH 1970 Headlamp Low Beam Relay Control (T82)
24-26 - - Not Used
27 BK/WH 151 Ground
28 PU 719 Low Reference
29 GY 8 Instrument Panel Lamps Supply Voltage (UXE)
30 GY 8 Instrument Panel Lamps Supply Voltage
31 GY 8 Instrument Panel Lamps Supply Voltage (T37/T96)
32 YE 317 Fog Lamp Relay Coil Supply Voltage (T37/T96)
33 BK 28 Horn Relay Control
34 BN 323 Shift Lock Solenoid Supply Voltage (A/T)
35 PU 5234 Passenger Seat Belt Indicator
36 WH 193 Rear Defog Relay Control
37 PU/WH 549 Headlamp Switch Headlamps Off Signal (T82)
38 - - Not Used
39 PU/WH 1572 Traction Control Indicator Control (NW7)
40 L-BU 1508 Turn/Hazard Switch Supply Voltage
41 GY 112 Windshield Wiper Switch Signal 1
42 BN/WH 1571 Traction Control Switch Signal (NW7)
43 L-BU 1134 Park Brake Switch Signal
44 L-BU 395 Passenger Door Jamb Switch Signal
45 L-GN/BK 394 Driver Door Jamb Switch Signal
46 L-BU 292 Rear Defog Switch Signal
47 D-BU 1201 Headlamp Low Beam Signal
48 WH/BK 1073 5-Volt Reference
49 GY 728 Security Indicator Control
50 L-GN/BK 1137 DRL Ambient Light Sensor Signal 5-Volt (T82)
51 - - Not Used
52 OG 192 Front Fog Lamp Switch Signal (T37/T96)
53 WH 1390 Off/Run/Crank Voltage
54 - - Not Used
55 YE/BK 1138 DRL Ambient Light Sensor Low Reference (T82)
56 - - Not Used
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