FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

M3

M3 CHECK POWER TO THE ELECTRONIC HYDRAULIC CONTROL UNIT (EHCU)

- Reinstall fuse 19 (60A).

- Disconnect the EHCU 2-Pin power connector.

EHCU 2-pin Power Connector:





- Measure the voltage between the EHCU 2-Pin power connector circuit 37 (Y) and chassis ground.

Is the voltage 10 volts or greater?

> Yes
Replace the EHCU. M4

> No
Repair circuit 37 (Y). M4