Anti-Lock Brake System (ABS) C155

Fig 1: View Of Anti-Lock Brake System C155 Connector

Courtesy of FORD MOTOR CO.

C155 CONNECTOR CIRCUIT DESCRIPTIONS

Pin Number(s)	Circuit Designation/Description	Normal Condition/Measurement
2	483 (RD) overload protected	B+ voltage at all times.
6	535 (LB/RD) brake pressure switch input	B+ voltage in RUN
8	1577 (RD/LB) yaw velocity sensor lateral acceleration	Less than 5 ohms between the sensor cluster and the ABS module.
9	1578 (GY/BK) yaw velocity sensor self-test	Less than 5 ohms between the sensor cluster and the ABS module.
10	1573 (YE) steering wheel rotation sensor input 2	Less than 5 ohms between the steering wheel rotation sensor and the ABS module.
11	1581 (PK/LB) brake booster switch	Less than 5 ohms between the brake booster and the ABS module. Closed circuit with brake pedal applied.
12	521 (TN/OG) LF wheel speed sensor +	Less than 5 ohms between the LF wheel speed sensor and the ABS module.
13	522 (TN/BK) LF wheel speed sensor -	Less than 5 ohms between the LF wheel speed sensor and the ABS module.
15	1582 (LG/RD) brake booster high side supply	Less than 5 ohms between the brake booster and the ABS module.
16	1205 (BK) ground	Less than 5 ohms between the ABS module and ground.
22	1575 (BK/WH) yaw velocity sensor ground	Less than 5 ohms between the ABS module and the sensor cluster.
23	1574 (DB) yaw velocity sensor reference voltage	Less than 5 ohms between the ABS module and the sensor cluster.
24	1571 (BK) steering wheel rotation sensor signal return	Less than 5 ohms between the steering wheel rotation sensor and the ABS module.
25	3127 (BK/LB) brake booster switch ground	Less than 5 ohms between the brake booster and the ABS module.
26	514 (YE/RD) RF wheel speed sensor +	Less than 5 ohms between the RF wheel speed sensor and the ABS module.
27	516 (YE/BK) RF wheel speed sensor -	Less than 5 ohms between the RF wheel speed sensor and the ABS module.
29	1583 (BN/WH) active booster low side solenoid drive	Less than 5 ohms between the ABS module and the booster.
31	534 (YE/LG) pump motor power	Hot at all times.
32	601 (LB/PK) ABS module power	Hot in RUN/START.
37	1576 (TN/BK) yaw sensor input	Less than 5 ohms between the ABS module and the sensor cluster.
38	1579 (OG/RD) yaw velocity sensor ring frequency input	Less than 5 ohms between the ABS module and the sensor cluster.
39	1572 (DG) steering wheel rotation sensor input 1	Less than 5 ohms between the steering wheel rotation sensor and the ABS module.
40	1580 (WH/LG) active booster failsafe switch	Less than 5 ohms between the ABS module and the booster.
41	519 (LG/BK) LR wheel speed sensor -	Less than 5 ohms between the LR wheel speed sensor and the ABS module.
42	518 (LG/RD) LR wheel speed sensor +	Less than 5 ohms between the LR wheel speed sensor and the ABS module.
43	523 (RD/PK) RR wheel speed sensor +	Less than 5 ohms between the RR wheel speed sensor and the ABS module.
44	524 (PK/BK) RR wheel speed sensor -	Less than 5 ohms between the RR wheel speed sensor and the ABS module.
45	1205 (BK) pump motor ground	Less than 5 ohms between the ABS module and ground.