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.

Voltage is supplied by the battery Junction box (BJB) through circuit 30-CF13 (RD) (hot at all times), circuit 30-CF6 (RD) (hot at all times) and circuit 15-CF6A (GN/YE) (hot in run). Ground is provided through circuit 31-CF6 (BK).

Possible Causes
^ Fuse 15 (20A), 24 (30A), 29 (10A)
^ Circuit 30-CF13 (RD) open
^ Circuit 30-CF6 (RD) open
^ Circuit 15-CF6 (GN/YE) open
^ Circuit 31-CF6 (BK)
^ ABS module

A1:

A1-A2:

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