Test A

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 601 (LB/PK) (ignition feed) and circuit 493 (BK/PK) (power hot at all times). Ground is provided through circuit 274 (BK/WH).

Possible Causes

- circuit 274 (BK/WH)open
- circuit 493 (BK/PK)open
- circuit 601 (LB/PK)open