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Home >> Saturn >> 2005 >> Ion 1 Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Computer/Integrating Systems) >> Component Locator >> Computer/Integrating Systems Connectors
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Computer/Integrating Systems Connectors

WARNING: This page is about a different car, the 2005 Pontiac Pursuit and 2005 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Body Control Module (BCM) C1

GM1376257Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • OEM: 15393122
  • Service: See Catalog
  • 72-Way F Micro 64 (GY)
Pin Wire Color Circuit No. Function
1 L-BU/BK 747 Left Rear Door Ajar Switch Signal (Sedan)
2-5 - - Not Used
6 WH 682 Door Lock Lock/Unlock Signal
7 WH 682 Door Lock Lock/Unlock Signal
8 WH 1080 Park Lamp Relay Control
9-12 - - Not Used
13 PK 849 Brake Fluid Level Sensor Signal (1)
14 L-BU 1134 Park Brake Switch Signal
15 YE 5199 Run/Crank Relay Coil Control
16 WH 193 Rear Defog Relay Control
17 D-BU 15 Right Turn Signal Lamp Supply Voltage
18 D-GN 5060 Low Speed GMLAN Serial Data
19 TN/WH 746 Right Front Door Ajar Switch Signal
20 L-GN/BK 748 Right Rear Door Ajar Switch Signal (Sedan)
21 - - Not Used
22 GY/BK 745 Left Front Door Ajar Switch Signal
23-26 - - Not Used
27-30 - - Not Used
31 OG/BK 737 Trunk Lamp Control
32 - - Not Used
33 D-GN/WH 1135 Brake Transmission Shift Interlock Solenoid Supply Voltage
34 - - Not Used
35 L-BU 14 Left Turn Signal Lamp Supply Voltage
36 D-GN 5060 Low Speed GMLAN Serial Data
37-43 - - Not Used
44 TN/WH 1969 Headlamp High Beam Relay Control
45-46 - - Not Used
47 YE 196 Windshield Wiper Motor Park Switch Signal
48-50 - - Not Used
51 D-GN 113 Windshield Wiper Switch On Signal
52-53 - - Not Used
54 YE 317 Fog Lamp Relay Coil Supply Voltage (T37)
55 OG/BK 744 Trunk Ajar Switch Signal
56 - - Not Used
57 BN 253 Trunk Release Relay Control
58-59 - - Not Used
60 TN 28 Horn Relay Control
61 BK/WH 1251 Signal Ground
62 RD/WH 1240 Battery Positive Voltage
63 GY 596 5-Volt Reference
64 BK/WH 751 Signal Ground
65 TN/WH 1704 Sensor Low Reference
66 GY/BK 1798 Low Reference (Sedan)
67 YE/BK 61 Outside Ambient Temperature Sensor Low Reference
68 WH 5075 Current Sensor Signal
69 - - Not Used
70 D-GN/WH 636 Outside Ambient Air Temperature Sensor Signal
71-72 - - Not Used
Body Control Module (BCM) C2

GM1376254Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • OEM: 15393121
  • Service: See Catalog
  • 72-Way F Micro 64 (GY)
Pin Wire Color Circuit No. Function
1 BN/WH 2500 High Speed GMLAN Serial Data (+) (1)
2 TN/BK 2500 High Speed GMLAN Serial Data (+) (1)
3 YE 10 Headlamp Switch Signal
4 PU 524 Headlamp Dimmer Switch High Beam Signal
5 BN/WH 301 Park Lamp Switch On Signal
6-8 - - Not Used
9 WH 111 Hazard Switch Signal
10 TN 1576 Rear Compartment Lock Actuator Unlock
11 D-GN 264 Security Indicator Supply Voltage
12 TN/WH 1455 Keyless Entry Program Enable Signal
13 - - Not Used
14 TN 28 Horn Relay Control
15 WH 103 Headlamp Switch On Signal
16 OG 192 Front Fog Lamp Switch Signal (T37)
17 PU/WH 549 Headlamp Switch Headlamps Off Signal
18 - - Not Used
19 BN 2501 High Speed GMLAN Serial Data (-) (1)
20 TN 2501 High Speed GMLAN Serial Data (-) (1)
21-25 - - Not Used
26 D-GN 44 Instrument Panel Lamp Dimmer Switch Signal
27-37 - - Not Used
38 D-GN 5060 Low Speed GMLAN Serial Data
39-43 - - Not Used
44 L-GN/BK 1137 DRL Ambient Light Sensor Signal
45-46 - - Not Used
47 YE/BK 1138 DRL Ambient Light Sensor Low Reference
48-50 - - Not Used
51 BN 1356 Flash To Pass Switch Signal
52-53 - - Not Used
54 L-BU 20 Stop Lamp Supply Voltage
55 - - Not Used
56 WH 1390 Off/Run/Crank Voltage
57 GY 112 Windshield Wiper Switch Low/Pulse Signal
58 PU 719 Sensor Low Reference
59-60 - - Not Used
61 GY 1884 Cruise Control Set/Coast/Resume/Accelerate Switch Signal
62 WH/BK 1073 Ignition Key Resistor Signal
63-65 - - Not Used
66 YE/BK 1418 Left Rear Turn Signal Switch Signal
67 D-GN/WH 1419 Right Rear Turn Signal Switch Signal
68 L-BU 292 Rear Defog Switch Signal
69 L-GN 66 A/C Request Signal
70-71 - - Not Used
72 WH 193 Rear Defog Relay Control
Body Control Module (BCM) C3

GM1362564Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • OEM: 15404825
  • Service: See Catalog
  • 41-Way F Metri-Pack 280, 800 Series (RD)
Pin Wire Color Circuit No. Function
A1 TN 294 Door Lock Actuator Unlock Control (AU3)
A2 TN 294 Door Lock Actuator Unlock Control (AU3)
TN 294 Door Lock Actuator Unlock Control (AU3) (Sedan)
A3 D-BU/WH 149 Courtesy Lamp Supply Voltage
A4 GY 295 Door Lock Actuator Lock Control (AU3) (Driver)
GY 295 Door Lock Actuator Lock Control (AU3) (Passenger)
A5 GY 295 Door Lock Actuator Lock Control (AU3)
GY 295 Door Lock Actuator Lock Control (AU3) (Sedan)
A6 - - Not Used
A7 BN 9 Park Lamp Supply Voltage
A8 PK 339 Run/Crank Ignition 1 Voltage (UQ3)
A9 YE 18 Left Rear Stop/Turn Lamp Supply Voltage
A10 GY 157 Interior Lamp Control
A11 - - Not Used
A12 D-GN 19 Right Rear Stop/Turn Lamp Supply Voltage
B1 TN 694 Driver Door Lock Actuator Unlock Control
B2 - - Not Used
B3 RD/WH 1240 Battery Positive Voltage
RD/WH 1240 Battery Positive Voltage
B4 - - Not Used
B5 BN 4 Accessory Voltage (LSJ)
B5 BN 4 Accessory Voltage (L61)
BN 4 Accessory Voltage (L61)
B6-B7 - - Not Available
B8-B11 - - Not Used
B12 GY 8 Instrument Panel Lamp Supply Voltage (1) (LSJ) and (J41)
B12 GY 8 Instrument Panel Lamp Supply Voltage (1) (L61)
GY 8 Instrument Panel Lamp Supply Voltage (1) (L61)
C1-C2 - - Not Available
C3 D-GN 1301 Retained Accessory Power Fuse Supply Voltage
C4 - - Not Used
C5 D-GN 801 Retained Accessory Power Fuse Supply Voltage
C6-C7 - - Not Available
C8-C11 - - Not Used
C12 OG 228 Windshield Washer Pump Control
D1 RD/BK 142 Battery Positive Voltage
D2 - - Not Available
D3 - - Not Used
D4 RD/WH 840 Battery Positive Voltage
D5 D-GN 801 Retained Accessory Power Fuse Supply Voltage
D6 PK 739 Run/Crank Ignition 1 Voltage
D7 PK 1339 Run/Crank Ignition 1 Voltage
D8-D9 - - Not Used
D10 RD/BK 442 Battery Positive Voltage
D11 - - Not Used
D12 RD/WH 242 Battery Positive Voltage
Body Control Module (BCM) C4

GM697044Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • OEM: 15356603
  • Service: See Catalog
  • 68-Way F Metri-Pack 280 Series (L-GY)
Pin Wire Color Circuit No. Function
A1 RD/WH 640 Battery Positive Voltage (UQ3)
RD/WH 640 Battery Positive Voltage (UQ3)
A2-A12 - - Not Used
B1 OG 228 Windshield Washer Pump Control
B2-B12 - - Not Used
C1 RD/WH 1440 Battery Positive Voltage
C2 GY 8 Instrument Panel Lamp Supply Voltage (1)
GY 8 Instrument Panel Lamp Supply Voltage (1)
C3-C5 - - Not Used
C6-C7 - - Not Available
C8 BN 4 Accessory Voltage
BN 4 Accessory Voltage (Sedan)
C8 BN 4 Accessory Voltage (Coupe) (TV5)
C9-C11 - - Not Used
C12 RD/WH 1140 Battery Positive Voltage (UQ4)
RD/WH 1140 Battery Positive Voltage (UQ4)
C12 RD/WH 1140 Battery Positive Voltage (TV5)
D1 RD/WH 1040 Battery Positive Voltage
D2 - - Not Used
D3 YE 5199 Run/Crank Relay Coil Control
D4 BN 141 Run Ignition 3 Voltage
D5 - - Not Used
D6-D7 - - Not Available
D8-D12 - - Not Used
E1 RD/WH 140 Battery Positive Voltage
E2-E5 - - Not Used
E6 PK 439 Run/Crank Ignition 1 Voltage
PK 439 Run/Crank Ignition 1 Voltage (Coupe) (TV5)
E7-E11 - - Not Used
E12 BK 651 Ground
F1 RD/WH 1540 Battery Positive Voltage
F2 GY 8 Instrument Panel Lamp Supply Voltage (1)
F3 GY 8 Instrument Panel Lamp Supply Voltage (1)
GY 8 Instrument Panel Lamp Supply Voltage (1)
F4 PK 339 Run/Crank Ignition 1 Voltage
PK 339 Run/Crank Ignition 1 Voltage
F5 PK 339 Run/Crank Ignition 1 Voltage
F6 PK 339 Run/Crank Ignition 1 Voltage
F7-F8 - - Not Used
F9 PK 1539 Run/Crank Ignition 1 Voltage
PK 1539 Run/Crank Ignition 1 Voltage
F10-F12 - - Not Used
Data Link Connector (DLC)

GM808656Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • OEM: 15317575
  • Service: See Catalog
  • 16-Way F Metri-Pack 150 Series (BK)
Pin Wire Color Circuit No. Function
1 D-GN 5060 Low Speed GMLAN Serial Data
2 D-GN 1049 PCM Class 2 Serial Data (LSJ)
3 - - Not Used
4 BK 550 Ground
5 BK/WH 1051 Signal Ground
6 TN/BK 2500 High Speed GMLAN Serial Data (+) (1)
7-13 - - Not Used
14 TN 2501 High Speed GMLAN Serial Data (-) (1)
15 - - Not Used
16 RD/WH 40 Battery Positive Voltage
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