GMC 1976 ZEO 6083 Maintenance Manual page 583

STEERING COLUMN TROUBLE DIAGNOSIS (Cont'd .)
Figure 68-Checking Column Buzzer Circuit
Continuity
STEERING 9- 5 1
Figure 67-Checking For Short In Chassis Wiring Figure 69-Checking Buzzer Switch Pads
Figure 70-Checking Buzzer Switch Continuity
Condition Possible Cause Correction
NOTE 2: With the fault isolated in the column, disassemble the upper end of the
column until the signal switch mounting screws have been removed . Lift the
switch and check the probes of the buzzer switch to insure good contact with
the pads on the signal switch . Bend probes, if required, then reseat the signal
switch and drive the three screws . Check the function, as in Note I.
:')uzzer does not sound F. Short or fault in sig- F. Connect male "E" and "F" con-
with key fully inserted nal switch wiring . tacts of connector with jumper
'n lock cylinder with (figure 69). Check buzzer switch
he entrance door open . pads with continuity meter. If
contact is made, function is normal .
If not, replace signal switch .
NOTE 3: If the fault has not yet been isolated and repaired, connect a continuity
meter to the buzzer switch probes (figure 70) . Fully insert and remove the key
from the lock cylinder .
If contact is made with the key in, and is broken with it out, the function is
normal . Retrace diagnostic steps starting at Note 2 .
If contact is not made, the fault is in the lock cylinder or buzzer switch .