KEY TO CIRCUIT BREAKER AND RELAY ACCESS PANEL (Continued)
With engine RUN switch on, transmission range
selector in NEUTRAL, and engine START button
depressed, the relay energizes and closes the starter
solenoid circuit. If a problem is experienced in acti-
vating the starter motor in your truck, notify Or-
ganizational Maintenance for troubleshooting and
replacement as required.
Below each relay is an identification decal which will assist Organizational
Maintenance personnel in troubleshooting and correcting electrical system
problems related to the relays. Each decal identifies the functions controlled
by the relay which it is alined under.
PUSH BUTTON RESET-TABLE CIRCUIT BREAKERS
There are nine resettable circuit breakers in the panel. A tenth circuit breaker,
which automatically recycles if there is an overload, protects the NORMAL
service headlamps system. It is located elsewhere. If, during vehicle operation,
an electrical component stops functioning (for example both windshield defrost-
er fans stop) pull safely to the side of the road. Open the access panel door and
check to see if one of the pushbuttons has popped out. If so, press the button
in and check to see if the defroster fans operate. If the button remains in and the
fans function, close the panel door and continue vehicle operation. If the push-
button pops out a second time, there is an overload or short in the particular
system being protected by that circuit breaker. If safe vehicle operation can
continue without use of the affected electrical item, complete your mission and
notify Organizational Maintenance for troubleshooting and correction. If the
vehicle cannot be safely operated, secure vehicle and advise Organizational
Maintenance. The nine resettable circuit breakers are each rated at 20 AMPS.
CIRCUIT BREAKER IDENTIFICATION
A decal placed below the nine resettable pushbutton circuit breakers identifies
them by number. If a circuit breaker pops out and cannot be reset, Organiza-
tional Maintenance will use this decal to identify the affected electrical cir-
cuits so that correction can be made.