For 1990-2009 cars

Connector 1: | Body Control Module C1
Connector 2: | Body Control Module C2
Connector 3: | Body Control Module C3
Connector 4: | Body Control Module C4
Connector 5: | Data Link Connector (DLC)
Connector 6: | Data Link Terminator Resistor
Connector 7: | Splice Pack SP200

### Body Control Module C1

#### Connector Part Information

- OEM: 15393122
- Service: 88987847
- Description: 72-Way F Micro-64 Unsealed (GY)

#### Terminal Part Information

- Pins: 6-8, 13-17, 19, 22, 26, 31, 35, 40, 44, 47, 51, 53-57, 60-61
- Terminal/Tray: 15359541/4
- Core/Insulation Crimp: M/M
- Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

- Pins: 33, 38
- Terminal/Tray: See Terminal Repair Kit
- Core/Insulation Crimp: See Terminal Repair Kit
- Release Tool/Test Probe: See Terminal Repair Kit

#### Body Control Module C1

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1-5 | -- | -- | Not Used
6 | WH | 682 | Door Lock/Unlock Signal
7 | WH | 682 | Door Lock/Unlock Signal
8 | WH | 1080 | Park Lamp Relay Control
9-12 | -- | -- | Not Used
13 | PK | 849 | Brake Fluid Level Sensor Signal
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 Lamps Supply Voltage
18 | -- | -- | Not Used
19 | TN/WH (early) PK/WH (late) | 746 | Right Front Door Ajar Switch Signal
20-21 | -- | -- | Not Used
22 | GY/BK | 745 | Left Front Door Ajar Switch Signal
23-25 | -- | -- | Not Used
26 | L-GN | 1478 | Coolant Level Switch Signal
27-30 | -- | -- | Not Used
31 | L-BU | 20 | Stop Lamp Supply Voltage
32 | -- | -- | Not Used
33 | D-GN/WH | 1135 | A/T Shift Lock Control Solenoid Supply Voltage
34 | -- | -- | Not Used
35 | L-BU | 14 | Left Turn Signal Lamps Supply Voltage
36-39 | -- | -- | Not Used
40 | L-BU | 1788 | Traction Control Switch Signal
41-43 | -- | -- | 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 Signal 2
52 | -- | -- | Not Used
53 | L-BU | 20 | Stop Lamp Supply Voltage
54 | YE | 317 | Fog Lamp Relay Control
55 | OG/BK | 744 | Rear Compartment Lid Ajar Switch Signal
56 | OG/BK | 737 | Rear Compartment Lamp Control
57 | BN | 253 | Trunk Release Relay Control
58 | D-BU | 38 | Backup Lamp Relay Control (M82)
59 | -- | -- | Not Used
60 | TN | 28 | Horn Relay Control
61 | BK/WH | 651 | Ground
62-66 | -- | -- | Not Used
67 | YE | 61 | Outside Ambient Temperature Sensor Return
68-69 | -- | -- | Not Used
70 | D-GN/WH | 636 | Outside Ambient Temperature Sensor Signal
71 | L-GN/BK | 592 | DRL Relay Control
72 | -- | -- | Not Used

### Body Control Module C2

#### Connector Part Information

- OEM: 15393121
- Service: 88987848
- Description: 72-Way F Micro-64 Unsealed (GY)

#### Terminal Part Information

- Pins: 1-5, 9-11, 14-20, 26, 31, 33, 38, 44, 47, 51, 56-59, 61-62, 66-69, 71-72
- Terminal: 15359541/4
- Core/Insulation Crimp: M/M
- Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

#### Body Control Module C2

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | TN/BK | 2500 | High Speed GMLAN Serial Data (+)
2 | TN/BK | 2500 | High Speed GMLAN Serial Data (+)
3 | PK/WH | 1970 | Low Beam Headlamp Relay Output - Coil
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 Control
12-13 | -- | -- | Not Used
14 | TN | 28 | Horn Relay Control
15 | WH | 103 | Headlamp Switch Headlamps On Signal
16 | OG | 192 | Front Fog Lamp Switch Signal
17 | PU/WH | 549 | Headlamp Switch Headlamps Off Signal
18 | WH | 5359 | 5-Volt Reference
19 | TN | 2501 | High Speed GMLAN Serial Data Bus (-)
20 | TN | 2501 | High Speed GMLAN Serial Data (-)
21-25 | -- | -- | Not Used
26 | D-GN | 44 | Instrument Panel Lamp Dimmer Switch Signal
27-30 | -- | -- | Not Used
31 | YE | 5361 | Brake Pedal Position Sensor Signal
32 | -- | -- | Not Used
33 | YE | 317 | Fog Lamp Relay Control
34-37 | -- | -- | Not Used
38 | L-GN/BK | 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
52-55 | -- | -- | Not Used
56 | WH | 1390 | Off/Run/Crank Voltage
57 | GY | 112 | Windshield Wiper Switch Signal 2
58 | PU | 719 | Low Reference
59 | BN | 5360 | Low Reference
60 | -- | -- | Not Used
61 | GY | 1884 | Cruise Control Switch Signal
62 | WH/BK | 1073 | 5-Volt Reference
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 | D-GN/WH | 762 | A/C Request Signal
70 | -- | -- | Not Used
71 | PU | 5234 | Passenger Seat Belt Indicator
72 | WH | 193 | Rear Defog Relay Control

### Body Control Module C3

#### Connector Part Information

- OEM: 15492675
- Service: See Catalog
- Description: 41-Way F Metri-Pack 280 800 Series (RD)

#### Terminal Part Information

- Pins: A1, A3, A4, A5, A7, A8, A9, A10, A12, B1, D4, B3, B5, C12, D7
- Terminal/Tray: 12110844/4
- Core/Insulation Crimp: Pins A1, A3, A4, A5, A7, A9, A10, A12, B1, B12, D4 - E/A
- Core/Insulation Crimp: Pins B3, B5, C12, D7 - E/C
- Release Tool/Test Probe: 15315247/J-35616-4A (PU)

- Pins: C5, D1, D5, D6, D10, D12, D11
- Terminal/Tray: 12110842/4
- Core/Insulation Crimp: Pins C5, D1, D5, D6, D10, D12 - F/G
- Core/Insulation Crimp: Pins D11 - A/B
- Release Tool/Test Probe: 15315247/J-35616-4A (PU)

#### Body Control Module C3

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A1 | TN | 294 | Door Lock Actuator Unlock Control (A31)
A2 | -- | -- | Not Used
A3 | D-BU/WH | 149 | Courtesy Lamp Supply Voltage
A4 | GY | 295 | Door Lock Actuator Lock Control (A31)
A5 | GY | 295 | Door Lock Actuator Lock Control (A31)
A6 | -- | -- | Not Used
A7 | BN | 9 | Park Lamp Supply Voltage
A8 | PK | 339 | Ignition 1 Voltage
A9 | YE | 18 | Left Rear Turn Lamps Supply Voltage
A10 | GY | 157 | Courtesy Lamp Control
A11 | -- | -- | Not Used
A12 | D-GN | 19 | Right Rear Turn Lamps Supply Voltage
B1 | TN | 694 | Driver Door Lock Actuator Unlock Control (A31)
B2 | -- | -- | Not Used
B3 | RD/WH | 1240 | Battery Positive Voltage
B4 | -- | -- | Not Used
B5 | BN | 4 | Accessory Voltage
B6-B7 | -- | -- | Not Available
B8-B11 | -- | -- | Not Used
B12 | GY | 8 | Instrument Panel Lamp Supply Voltage
C1-C2 | -- | -- | Not Available
C3-C4 | -- | -- | Not Used
C5 | D-GN | 801 | Retained Accesory Power Fuse Supply Voltage (A31)
C6-C7 | -- | -- | Not Available
C8-C11 | -- | -- | Not Used
C12 | OG | 228 | Windshield Washer Pump Control
D1 | RD/BK | 142 | Battery Positive Voltage
D2-D3 | -- | -- | Not Used
D4 | RD/WH | 840 | Battery Positive Voltage
D5 | D-GN | 801 | Retained Accessory Power Fuse Supply Voltage (A31)
D6 | PK | 739 | Ignition 1 Voltage
D7 | PK | 1339 | Ignition 1 Voltage
D8-D9 | -- | -- | Not Used
D10 | RD/BK | 442 | Battery Positive Voltage
D11 | RD/WH | 640 | Battery Positive Voltage (UQ3)
D12 | RD/BK | 242 | Battery Positive Voltage

### Body Control Module C4

#### Connector Part Information

- OEM: 15492668
- Service: See Catalog
- Description: 68-Way F Metri-Pack 280 Series, Flexlock (L-GY)

#### Terminal Part Information

- Pins: F2, F4, F5, F6, F6
- Terminal/Tray: 12110844/4
- Core/Insulation Crimp: E/A
- Release Tool/Test Probe: 15315247/J-35616-4A (PU)

- Pins: B1, C1, C8, C11, C12, D1, D3, E6, F1, F9, D10, D10
- Terminal/Tray: 12110844/4
- Core/Insulation Crimp: Pins B1, C1, C8, C11, C12, D1, D3, E6, F1, F9 - E/C
- Core/Insulation Crimp: Pins D10- See Terminal Repair Kit
- Release Tool/Test Probe: 15315247/J-35616-4A (PU)

- Pins: D4, E12
- Terminal/Tray: 12110842/4
- Core/Insulation Crimp: Pins D4 - F/G
- Core/Insulation Crimp: Pins E12 - A/B
- Release Tool/Test Probe: 15315247/J-35616-4A (PU)

#### Body Control Module C4

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A1-A12 | -- | -- | Not Used
B1 | OG | 228 | Windshield Washer Pump Control
B2-B12 | -- | -- | Not Used
C1 | RD/WH | 1440 | Battery Positive Voltage
C2-C5 | -- | -- | Not Used
C6-C7 | -- | -- | Not Available
C8 | BN | 4 | Accessory Voltage
C9-C10 | -- | -- | Not Used
C11 | GY | 8 | Instrument Panel Lamp Supply Voltage
C12 | GY/BK | 1458 | Instrument Panel Lamp Feed - Secondary
D1 | RD/WH | 1040 | Battery Positive Voltage
D2 | -- | -- | Not Used
D3 | YE | 5199 | Run/Crank Relay Coil Control
D4 | BN | 141 | Ignition 3 Voltage
D5 | -- | -- | Not Used
D6-D7 | -- | -- | Not Available
D8-D9 | -- | -- | Not Used
D10 | RD/WH | 1140 | Battery Positive Voltage
D11-D12 | -- | -- | Not Used
E1-E5 | -- | -- | Not Used
E6 | PK | 439 | Ignition 1 Voltage
E7-E11 | -- | -- | Not Used
E12 | BK | 550 | Ground
F1 | RD/WH | 1540 | Battery Positive Voltage
F2 | GY | 8 | Instrument Panel Lamp Supply Voltage
F3 | -- | -- | Not Used
F4 | PK | 339 | Ignition 1 Voltage
F5 | PK | 339 | Ignition 1 Voltage
F6 | PK | 339 | Ignition 1 Voltage
F7-F8 | -- | -- | Not Used
F9 | PK | 1539 | Ignition 1 Voltage
F10-F12 | -- | -- | Not Used

### Data Link Connector (DLC)

#### Connector Part Information

- OEM: 12110250
- Service: Not Serviced
- Description: 16-Way F Metri-Pack 150 Series (BK)

#### Terminal Part Information

- Terminal/Tray: 12191819/8
- Core/Insulation Crimp: E/A
- Release Tool/Test Probe: 15315247/J-35616-2A (GY)

#### Data Link Connector (DLC)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | D-GN | 5060 | Low Speed GMLAN Serial Data
2-3 | -- | -- | Not Used
4 | BK | 550 | Ground
5 | BK/WH | 651 | Ground
6 | TN/BK | 2500 | High Speed GMLAN Serial Data (+)
7-13 | -- | -- | Not Used
14 | TN | 2501 | High Speed GMLAN Serial Data (-)
15 | -- | -- | Not Used
16 | RD/WH | 40 | Battery Positive Voltage

### Data Link Terminator Resistor

#### Connector Part Information

- OEM: 15326801
- Service: 15306156
- Description: 2-Way F GT 150 Series (BK)

#### Terminal Part Information

- Terminal/Tray: 12191819/8
- Core/Insulation Crimp: E/A
- Release Tool/Test Probe: 15315247/J-35616-2A (GY)

#### Data Link Terminator Resistor

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | TN/BK | 2500 | High Speed GMLAN Serial Data (+)
B | TN | 2501 | High Speed GMLAN Serial Data (-)

### Splice Pack SP200

#### Connector Part Information

- OEM: 12191216
- Service: 15305914
- Description: 12-Way F GT 150 Series, Unsealed (L-GY)

#### Terminal Part Information

- Pins: A, B, C, D, E, F, K, M
- Terminal/Tray: 12191812/19
- Core/Insulation Crimp: E/C
- Release Tool/Test Probe: 15315247/J-35616-2A (GY)

#### Splice Pack SP200

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | D-GN | 5060 | Low Speed GMLAN Serial Data
B | L-GN | 5060 | Low Speed GMLAN Serial Data
C | L-GN/BK | 5060 | Low Speed GMLAN Serial Data
D | D-GN/BK | 5060 | Low Speed GMLAN Serial Data
E | D-GN/RD | 5060 | Low Speed GMLAN Serial Data
F | D-GN/WH | 5060 | Low Speed GMLAN Serial Data
G-J | -- | -- | Not Used
K | D-GN/YE | 5060 | Low Speed GMLAN Serial Data
L | -- | -- | Not Used
M | L-GN/RD | 5060 | Low Speed GMLAN Serial Data (U2K)