Test F: No Communication With the Anti-Lock Brake System (ABS) Module

PINPOINT TEST F: NO COMMUNICATION WITH THE ANTI-LOCK BRAKE SYSTEM (ABS) MODULE

Normal Operation
Fused battery voltage is provided to the anti-lock brake (ABS) module from battery junction box fuses 109 (20A) and 106 (40A) along circuits 483 (RD) and 601 (LB/PK) respectively. Fused ignition voltage is provided from central junction box (CJB) fuse 17 (10A) along circuit 88 (BK/WH). When necessary, the ABS module supplies voltage to the hydraulic control unit (HCU) assembly and the pump motor is activated. The ABS module is provided a ground along circuit 57 (BK) and the hydraulic pump motor is provided a ground internally through the HCU.

Possible Causes
^ Fuse(s)
^ Circuit open
^ Circuit shorted
^ ABS module

F1-F2: