TM 1-2840-252-23-3
G-65
NO BEEPER SWITCH RESPONSE IN REVERSION EXPANDED INSTRUCTIONS
Refer to numbered steps in figure 151.
Step 2.
Check harness connector PL3 (figure 201) at each DECU for tight connection.
Step 3.
Disconnect connector PL3 to check pins and soc ets.
k
Step 5.
With PL3 disconnected and beeper switch in increase position, check resistance of beeper switch at
harness PL3 connector sockets JJ and KK (figure 202). Limit is <50 . Check resistance at sockets w
and KK. Limit is >150K . With beeper switch in decrease position, check resistance at sockets JJ and
KK. Limit is >150K .. Check resistance at sockets w and KK. Limit is <50 . With beeper switch in
neutral position, check resistance at sockets JJ and KK, and w and KK. In each case limit is >150K .
Step 6.
Before tightening harness connector PL3,be sure that keyway in harness connector is aligned with
keyway in component connector.
Step 10.
Refer to manufacturer's procedure for diagnosing and replacing harness.
Step 12.
Refer to manufacturer's procedure for diagnosing and replacing harness or switch.
RESISTANCE-CHECK SUMMARY
Connector
Resistance (Q)
Component
No.
Contacts
Limits
Nominal *
Beeper Switch
PL3
JJ & KK
< 50
1
Increase Position
w & KK
> 150K
Beeper Switch
PL3
JJ & KK
> 150K
Decrease Position
w & KK
< 50
1
Beeper Switch
PL3
JJ & KK
> 150K
Neutral Position
w & KK
> 150K
*At 25
C
G-152
