A: No Communication With the Anti-Lock Brake Control Module
PINPOINT TEST A: NO COMMUNICATION WITH THE ANTI-LOCK BRAKE SYSTEM (ABS) MODULENormal operation
The operating voltage required to supply the ABS module, hydraulic pump and isolation valves is in a range between 10 and 16 volts.
Voltage is supplied by the battery junction box (BJB) through circuit 532 (TN/RD) (hot at all times) and circuit 601 (LB/PK) (hot in run). Ground is provided through circuit 530 (LG/YE).
Possible causes
^ Fuse
^ Circuit 601 (LB/PK) open
^ Circuit 530 (LG/YE) open
^ ABS module
A1:
A1-A2:
