5-8 Accessory Troubleshooting
TP-5672 11/95
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Does the generator set
start when the test switch
is in the Test position?
Is there 10 vdc at terminal
TB-DC1-30 on the power
supply board?
Is there 10 vdc at terminal
TB-DC1-25 on the power
supply board when the test
switch is in the test position?
Does the Not-In-Automatic
LED illuminate when the test
switch is in the test position?
Replace the power
supply board.
Replace the
test switch.
Option is
functioning properly
Place a jumper between terminals
TB-DC1-9 and TB-DC1-34 on the
power supply board. Does the
Not-In-Automatic LED illuminate?
Replace the
logic board.
Is there continuity between
terminal TB-DC1-9 on the
power supply board and
terminal 1 of the test switch?
Replace the lead from
terminal TB-DC1-9 on the
power supply board to the
test switch.
Is there continuity between
terminal TB-DC1-34 on the
power supply board and
terminal 4 of the test switch?
Replace the lead from
terminal TB-DC1-34 on
the power supply board
to the test switch.
Is there continuity between
terminal 2 to terminal 4 of
the test switch?
Replace the jumper between
terminal 2 to terminal 4 of the
test switch.
Replace the
test switch.
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Is there continuity between terminals TB-DC1-24
and TB-DC1-34 on the power supply board when
the test button is pressed?
Place a jumper between terminals
TB-DC1-21 to TB-DC1-31 on the
power supply board. Does the
generator set start?
Refer to Figure 5-7
troubleshooting flowchart
Is there continuity between terminal
TB-DC1-24 on the power supply board
and terminal 3 of the test switch?
Is there continuity between terminal
TB-DC1-34 on the power supply board
and terminal 4 of the test switch?
Replace the lead from
terminal TB-DC1-24 on
the power supply board
to the test switch.
Replace the lead from terminal
TB-DC1-34 on the power supply
board to the test switch.
Refer to the engine start
troubleshooting flowchart.
Figure 5-8. Troubleshooting— Test switches, Option DD-07-D switch does go into Test mode