Test A

Test A1-A2:

Pinpoint Test A: No Communication With The ABS Module

CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.

Normal Operation
The operating voltage required to supply the ABS module, hydraulic pump, and isolation valves is in a range between 10 and 17 volts.
Voltage is supplied by circuit 20-CF6A (PK/YE) (ignition feed) and circuit 30-CF13 (RD) (power hot at all times). Ground is provided through circuit 31-CF6A (BK/YE) and 31-CF6B (BK/YE).

Possible Causes
^ Charging system.
^ Battery.
^ Ground circuit 31-CF6A (BK/YE) or 31-CF6B (BK/YE).
^ Power supply:
- circuit 30-CF13 (RD)
- circuit 20-CF6A (PK/YE)