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Computer/Integrating Systems Connector End Views

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
Body Control Module (BCM) C2

GM878463Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1326143-1
  • 38-Way F Amp (GY)
Pin Wire Color Circuit No. Function
1 - - Not Used
2 OG 40 Battery Positive Voltage
3 OG 240 Battery Positive Voltage
4 - - Not Used
5 BN 9 Park Lamp Supply Voltage (T82)
6 OG 840 Battery Positive Voltage
7 PK 1200 Headlamp High Beam Signal
8 L-BU 20 Stop Lamp Switch Signal
9 PK 339 Ignition 1 Voltage (2.0L)
10 PK 339 Ignition 1 Voltage (2.2L w/M/T)
11 PK 339 Ignition 1 Voltage
12 - - Not Used
13 OG 52 Blower Motor Supply Voltage
14 BN 41 Ignition 3 Voltage
15 BN 141 Ignition 3 Voltage
16 - - Not Used
17 OG 1040 Battery Positive Voltage
18 OG 1440 Battery Positive Voltage
19-20 - - Not Used
21 OG 40 Battery Positive Voltage
22 YE 143 Accessory Voltage
23 YE 143 Accessory Voltage (A/T)
24-27 - - Not Used
28 PK 339 Ignition 1 Voltage (2.2L w/M/T)
29 YE 343 Accessory Voltage
30 - - Not Used
31 OG 52 Blower Motor Supply Voltage
32 OG 52 Blower Motor Supply Voltage
33 YE 1139 Ignition 1 Voltage
34 - - Not Used
35 PK 1539 Ignition 1 Voltage
36 - - Not Used
37 OG 1140 Battery Positive Voltage
38 OG 140 Battery Positive Voltage
Body Control Module (BCM) C3

GM878465Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1326144-1
  • 56-Way F Amp (BK)
Pin Wire Color Circuit No. Function
1 BK/WH 56 Trunk Release Motor Supply Voltage
2 TN 694 Driver Door Lock Actuator Unlock Control (AU3)
3 OG 1732 Inadvertent Power Supply Voltage
4 D-BU 338 Run/Crank Voltage
5 BN 4 Accessory Voltage
6 BN 9 Park Lamp Supply Voltage
7 BN 9 Park Lamp Supply Voltage
8 BN 9 Park Lamp Supply Voltage
9 BN 9 Park Lamp Supply Voltage
10 RD 228 Windshield Washer Pump Control
11 WH 156 Courtesy Lamp Low Control
12 OG 1732 Inadvertent Power Supply Voltage (2.2L)
13 OG 1732 Inadvertent Power Supply Voltage (DG7)
14 - - Not Used
15 D-GN 113 Windshield Wiper Switch Signal 2
16 - - Not Used
17 YE/BK 68 Low Coolant Level Indicator Signal
18 BK/WH 151 Ground (Sedan)
19 - - Not Used
20 BK/WH 151 Ground (Sedan)
21 L-BU 395 Passenger Door Jamb Switch Signal (Sedan)
22 L-BU 395 Passenger Door Jamb Switch Signal (Sedan)
23 YE 196 Windshield Wiper Motor Park Switch Signal
24 - - Not Used
25 PK 849 Brake Fluid Level Sensor Signal
26 PU 1807 BCM Class 2 Serial Data (JM4/JL9)
27 PU 1807 BCM Class 2 Serial Data
28-32 - - Not Used
33 WH 682 Driver Door Lock Actuator Unlock Control (AU3)
34 WH 682 Driver Door Lock Actuator Unlock Control (AU3)
35 D-GN 146 Trunk Ajar Indicator Control (AU3)
36-38 - - Not Used
39 WH 193 Rear Defog Relay Control
40 BK 28 Horn Relay Control
41 YE 317 Fog Lamp Relay Coil Supply Voltage (T37/T96)
42 - - Not Used
43 YE 18 Left Turn Signal Lamps Supply Voltage
44 L-BU 14 Left Turn Signal Lamp Supply Voltage
45 D-GN 19 Right Turn Signal Lamps Supply Voltage
46 D-BU 15 Right Turn Signal Lamp Supply Voltage
47 BK 650 Ground
48 GY 295 Door Lock Actuator Lock Control (Sedan w/AU3)
49 GY 295 Door Lock Actuator Lock Control (Sedan w/AU3)
50 GY 295 Door Lock Actuator Lock Control (AU3)
51 GY 295 Door Lock Actuator Lock Control (AU3)
52 TN 294 Door Lock Actuator Unlock Control (AU3)
53 TN 294 Door Lock Actuator Unlock Control (Sedan w/AU3)
54 - - Not Used
55 TN 294 Door Lock Actuator Unlock Control (Sedan w/AU3)
56 D-BU 1201 Headlamp Low Beam Signal
Body Control Module (BCM) C4

GM878468Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1326144-2
  • 56-Way F Amp (GY)
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
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 - - Not Used
30 GY 8 Instrument Panel Lamps Supply Voltage (A/T)
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 - - Not Used
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
Body Control Module (BCM) C5 (UE1 or U2K)

GM886347Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12193928
  • 6-Way F Metri-Pack 280 Series Flexlock (GY)
Pin Wire Color Circuit No. Function
A OG 1340 Battery Positive Voltage
B-C - - Not Used
D PU 1807 Class 2 Serial Data (UE1)
E-F - - Not Used
Data Link Connector (DLC)

GM68793Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 179631-1
  • 16-Way F (WH)
Pin Wire Color Circuit No. Function
1 D-GN 5060 Low Speed GMLAN Serial Data
2 PU 1807 Class 2 Serial Data
3 - - Not Used
4 BK 550 Ground
5 BK/WH 151 Ground
6 TN/WH 2500 High Speed GM LAN Serial Data Bus+ (2.2L)
7-13 - - Not Used
14 TN 2501 High Speed GM LAN Serial Data Bus- (2.2L)
15 - - Not Used
16 OG 40 Battery Positive Voltage
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