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OPERATION
3.7 ELECTRICAL EQUIPMENT IN CAB BASE
Diagnostic Fault Codes of the Engine Centry
System
The fault lamp (H97), illustration Z25478 will light for about 2 sec-
onds after main key switch-on and then go out when no faults are
detected. When a fault exists, the fault lamp will turn "ON" for
warning faults, and "ON FLASHING" for more severe faults that
can affect engine operation and need immediate attention. To
determine if a fault is active, shut off the engine and turn main key
switch to "ON" position (engine not running). Press diagnostic
switch (S57) for 1 to 2 seconds and then release. If the fault lamp
(H97) illuminates while the diagnostic switch is held depressed,
there is an active fault or faults. Active faults MUST be corrected
as soon as possible.
For more information, refer to the separate Operation and Mainte-
nance Manual CENTRY, filed in volume 2 binder.
149
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