If the relays click, check for
voltage at the No. 4, 5 and 6
terminals while No. 1 and 2
terminals are shorted to ground.
If voltage is not available at all
three terminals, the relay is
defective. Replace the relay
If voltage is present at relay
terminals 4, 5 and 6, with
terminals 1 and 2 grounded, re-
move the clip leads from these
terminals. If the window now
does not operate, the relay may
be improperly grounded.
Use a dwell meter to check for
ground continuity between
terminal 5 and ground and
terminal 6 and ground. If this
check does not show 100 per
cent dwell, the relay itself or the
relay ground wire is defective.
Repair or replace as may be
However, if the dwell meter
shows a positive ground, the
trouble must be in the motor.
Remove the motor from the regulator assembly. Detach the motor ground
lead at the relay and place an ammeter in series with the lead and ground.
Then operate the window switch and observe the current draw. The no-
load current draw should be approximately 15 to 20 amperes at 6 volts. If
the current draw is not according to these specifications, the probable
trouble is worn or dirty brushes.