TP-6137 5/0348 Section 8 Controller Troubleshooting
Yes
A
Does the engine crank?
D Check the conditions of the
K2 connections (6-GND).
D Check the conditions of the
TB1 connections (6-GND).
D Check the conditions of the
P3 connections (6-GND).
D Check the conditions of the
2-7 connections on the
terminal board of the
control panel.
D Reset the failed
connections to energize
theK2relay.
D Check the conditions of the
FP connections (8-GND).
D Check the conditions of the
FS connections (8-GND).
D Check the conditions of the
P1 connections (8-GND).
D Check the conditions of the
TB1 connections (8-GND).
D Check the continuity of the
K2 connections (7-8).
D Reset the failed
connections to energize
the fuel pump (FP) and
the cut-off solenoid (FS).
No
Is the 12 DC voltage present
on the K2 relay coil?
Is current present on the coils
of the fuel pump (FP) and the
cut-off solenoid (FS)?
Change the fuel pump (FP)
or the cut-off solenoid (FS) if
these are inoperative.
No
Yes
Go to B
(next
page).
Yes
No
Figure 8-7 Troubleshooting Relay Controller Control Panel (2 of 4)
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