For 1990-2009 cars

Table 1: | ABS Main Relay
Table 2: | ABS Pump Relay
Table 3: | ABS/TCC Switch
Table 4: | Brake Pressure Modulator Valve C1
Table 5: | Brake Pressure Modulator Valve C2
Table 6: | Brake Pressure Modulator Valve C3
Table 7: | Electronic Brake (and Traction) Control Module (EBCM/EBTCM)
Table 8: | LH Front Wheel Speed Sensor
Table 9: | LH Rear Wheel Speed Sensor
Table 10: | RH Front Wheel Speed Sensor
Table 11: | RH Rear Wheel Speed Sensor
Table 12: | Traction Control Switch

#### ABS Main Relay

Connector Part Information |

• | 12110538

• | 5 Way F Metri-Pack 280 Series (BLK)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
30 | RED | 1633 | ABS Enable Relay Output - N.O. Contact
85 | PNK | 1632 | ABS Enable Relay Output - Coil
86 | BRN | 441 | Fused Output - Ign 3
87 | RED | 242 | Fused Output - Bat
87A | BLK | 351 | Ground

#### ABS Pump Relay

Connector Part Information |

• | 12110787

• | 4 Way F Metri-Pack 280 Series (GRY)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
30 | RED | 542 | Fused Output - Bat
85 | RED | 1633 | ABS Enable Relay Output - N.O. Contact
86 | PNK/BLK | 854 | ABS Pump Motor Relay Output - Coil
87 | RED | 864 | ABS Pump Motor Relay Output - N.O. Contact

#### ABS/TCC Switch

Connector Part Information |

• | 12033704

• | 4 Way F Metri-Pack 280 Series (BLK)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | BRN | 241 | Fused Output - Ign (Buick)
A | PNK | 339 | Fused Output - Ign (Oldsmobile)
B | PPL | 420 | Brake Pedal Switch Output (TCC)
C | TAN | 848 | Brake Pedal Switch Signal (ABS)
D | LT BLU/BLK | 853 | Brake Pedal Switch Return (ABS)

#### Brake Pressure Modulator Valve C1

Connector Part Information |

• | 121244827

• | 14 - Way (BLK)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | ORN | 1657 | ABS Solenoid Output - Valve 1
2 | PPL | 1658 | ABS Solenoid Output - Valve 2
3 | DK GRN | 858 | ABS Inlet Valve Solenoid Feed - Left Front
4 | LT BLU | 862 | ABS Outlet Valve Solenoid Feed - Left Front
5 | PNK | 857 | ABS Inlet Valve Solenoid Feed - Right Front
6 | BRN | 861 | ABS Outlet Valve Solenoid Feed - Right Front
7 | GRY | 859 | ABS Inlet Valve Solenoid Feed - Right Rear
8 | DK BLU | 863 | ABS Outlet Valve Solenoid Feed - Right Rear
9 | DK BLU | 1290 | ABS Inlet Valve Solenoid Feed - Right Rear
10 | WHT | 1291 | ABS Outlet Valve Solenoid Feed - Left Rear
11 | LT BLU | 1659 | ABS High Pressure Switch Signal
12 | LT BLU/BLK | 853 | Brake Pedal Switch Return - ABS
13 | RED | 1633 | ABS Enable Relay Output - N.O. Contact
14 | RED | 1633 | ABS Enable Relay Output - N.O. Contact

#### Brake Pressure Modulator Valve C2

Connector Part Informaiton |

• | 12092394

• | 4 Way M Metri Pack 150 Series (BLK)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | RED | 864 | ABS Pump Motor Feed
D | LT GRN/BLK | 1292 | ABS Pump Motor Run Sensor Signal
E | BLK | 1450 | Ground
F | LT BLU/BLK | 1293 | ABS Pump Motor Run Sensor Return

#### Brake Pressure Modulator Valve C3

Connector Part Information |

• | 12065454

• | 2 Way F Metri-Pack 280 Series (BLK)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | PNK | 849 | Brake Fluid Level Sensor Signal
B | LT BLU/BLK | 853 | Brake Pedal Switch Return - ABS

#### Electronic Brake (and Traction) Control Module (EBCM/EBTCM)

Connector Part Information |

• | 12146372/12084812

• | 55 Way (BLK)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | BLK/WHT | 1451 | Ground
2 | LT BLU | 862 | ABS Outlet Valve Solenoid Feed - Left Front
3 | RED | 1633 | ABS Enable Relay Output - N.O. Contact
4 | -- | -- | Not Used
5 | TAN | 848 | Brake Pedal Switch Signal - ABS
6 | TAN/BLK | 464 | Traction Control System Signal - Torque Delivered
7 | BLK | 1656 | Traction Control System Active Indicator Lamp Output (Oldsmobile)
8 | PNK | 849 | Brake Fluid Level Sensor Signal
9-12 | -- | -- | Not Used
13 | LT BLU | 1659 | ABS High Pressure Switch Signal
14 | -- | -- | Not Used
15 | PNK/BLK | 854 | ABS Pump Motor Relay Output - Coil
16-17 | -- | -- | Not Used
18 | DK BLU | 863 | ABS Outlet Valve Solenoid Feed - Right Rear
19 | BLK/WHT | 1451 | Ground
20 | DK GRN | 858 | ABS Inlet Valve Solenoid Feed - Left Front
21 | BRN | 861 | ABS Outlet Valve Solenoid Feed - Right Front
22 | -- | -- | Not Used
23 | TAN | 800 | Serial Data Signal - Uart (8192 Baud) Primary
24 | ORN/BLK | 463 | Traction Control System Signal - Torque Desired
25 | BRN/WHT | 1571 | Traction Control System Switch Signal
26 | LT BLU/BLK | 853 | Brake Pedal Switch Return - ABS
27 | WHT | 883 | Wheel Speed Sensor Return - Right Rear
28 | RED | 885 | Wheel Speed Sensor Return - Left Rear
29 | TAN | 833 | Wheel Speed Sensor Return - Right Front
30 | YEL | 873 | Wheel Speed Sensor Return - Left Front
31 | LT BLU/BLK | 1293 | ABS Pump Motor Run Sensor Return
32 | WHT | 17 | Stop Lamp Switch Output
33 | RED | 1633 | ABS Enable Relay Output - N.O. Contact
34 | PNK | 1632 | ABS Enable Relay Output - Coil
35 | RED | 242 | Fused Output - Bat
36 | WHT | 1291 | ABS Outlet Valve Solenoid Feed - Left Rear
37 | ORN | 1657 | ABS Solenoid Output - Valve 1
38 | PNK | 857 | ABS Inlet Valve Solenoid Feed - Right Front
40 | PPL | 1658 | ABS Solenoid Output - Valve 2
41 | -- | -- | Not Used
42 | TAN | 800 | Serial Data Signal - UART
43 | -- | -- | Not Used
44 | PPL/WHT | 1572 | Traction Control System Indicator Lamp Output - Failure
45 | BRN | 882 | Wheel Speed Sensor Signal - Right Rear
46 | BLK | 884 | Wheel Speed Sensor Signal - Left Rear
47 | DK GRN | 872 | Wheel Speed Sensor Signal - Right Front
48 | LT BLU | 830 | Wheel Speed Sensor Signal - Left Front
49 | LT GRN/BLK | 1292 | ABS Pump Motor Run Sensor Signal
50-51 | -- | -- | Not Used
52 | WHT | 852 | ABS Signal - ABS Failure
53 | BRN | 441 | Fused Output - Ign 3
54 | DK BLU | 1290 | ABS Inlet Valve Solenoid Feed - Left Rear
55 | GRY | 859 | ABS Inlet Valve Solenoid Feed - Right Rear

#### LH Front Wheel Speed Sensor

Connector Part Information |

• | 12052638

• | 2 Way F Metri - Pack 150 Series (GRY)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | BLK | 873 | Wheel Speed Sensor Return - Left Front
B | WHT | 830 | Wheel Speed Sensor Signal - Left Front

#### LH Rear Wheel Speed Sensor

Connector Part Information |

• | 12052638

• | 2 Way F Metri - Pack 150 Series (GRY)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | WHT | 885 | Wheel Speed Sensor Return - Left Rear
B | BLK | 884 | Wheel Speed Sensor Signal - Left Rear

#### RH Front Wheel Speed Sensor

Connector Part Information |

• | 12052638

• | 2 Way F Metri - Pack 150 Series (GRY)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | BLK | 833 | Wheel Speed Sensor Return - Right Front
B | WHT | 872 | Wheel Speed Sensor Signal - Right Front

#### RH Rear Wheel Speed Sensor

Connector Part Information |

• | 12052638

• | 2 Way F Metri - Pack 150 Series (GRY)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | WHT | 883 | Wheel Speed Sensor Return - Right Rear
B | BLK | 882 | Wheel Speed Sensor Signal - Right Rear

#### Traction Control Switch

Connector Part Information |

• | 12065872

• | 7 Way F Micro-Pack 100 Series (GRY)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | GRY | 8 | Instrument Panel Lamp Feed
2 | BRN/WHT | 1571 | System Switch Signal
3 | BLK | 150 | Ground
4-5 | -- | -- | Not Used
6 | BLK | 150 | Ground
7 | -- | -- | Not Used