Four Wheel Anti-Lock Brake System (4WABS)

N2 CHECK POWER TO THE ELECTRONIC HYDRAULIC CONTROL UNIT (EHCU)

- Key "OFF."

- Install the EEC IV 60-Pin Breakout Box.

- Key "ON."

- Measure the voltage between breakout box pin 14 and chassis ground.

Is voltage 10 volts or greater?

> Yes
N3

> No
Check fuse 21 (15A) and repair circuit 640 (R/Y).