LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Saturn >> 2007 >> Ion Red Line >> Repair and Diagnosis >> Electrical >> Component Locations >> Component Locations And In-Line Harness Connector End Views >> Electrical Center Identification Views >> Body Control Module (BCM) C4
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Body Control Module (BCM) C4

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: 11-20,23, 28, 43-45, 22, 27, 29-34, 36, 37, 39, 40-42, 46
  • Terminal/Tray: 928999-5/15
  • Core/Insulation Crimp: Pins 11, 12, 23, 43-45 - J/J
  • Core/Insulation Crimp: Pins 13-20, 22, 27-34, 36, 37, 39-42, 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 (T37 or 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
scientia non olet · About LEMON Manuals