Test A: No Communication With The Anti-Lock Brake System (ABS) Module

Pinpoint Test A: No Communication With The Anti-Lock Brake System (ABS) Module

Normal Operation
The operating voltage required to supply the ABS module, hydraulic pump and isolation valves is in a range between 10 and 16 volts.

Fused ignition voltage is supplied by the smart junction box (SJB) through circuit 1844 (LG/RD) and fused battery voltage is supplied by the bussed electrical center (BEC) through circuit 601 (LB/PK). Ground is provided through circuit 1205 (BK).

Possible Causes
^ Fuse(s)
^ Circuit open
^ Anti-lock brake system (ABS) module

A1-A2:

A2: