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

E7

E7 CHECK FOR INTERMITTENT WIRING CONCERN

- Key "OFF."

- Install the EEC IV 60-Pin Breakout Box.

- Monitor the resistance between breakout box pin 11 and chassis ground and Pin 23 and chassis ground while driving over rough roads at various speeds.

NOTE: Turn the beeper of the multimeter on to help detect any large change i the continuity as the drive test is performed.

Is continuity ever indicated in either of the checks?

> Yes
Repair circuit 521 (T/O) or circuit 522 (T/BK). E9

> No
E8