Genie GTH-1048 Controls And Instruments, Engine Electronic Control Unit, Blink Code Diagnostics

CONTROLS AND INSTRUMENTS

ENGINE ELECTRONIC CONTROL UNIT

Blink Code Diagnostics

When the engine ECU detects abnormal operating conditions, it generates a fault code that is stored in the Engine ECU that can be accessed by service personnel later, even after the condition that have caused the engine fault have ceased to exist. Multiple fault codes can be stored simultaneously. These codes can give insight into the problem area, but won't necessarily specify the underlying problem.

To access the fault codes, hold down the Shutdown Override / Blink Code Enable button (B) for several seconds while turning the ignition key (C) to the ON (Not Start) position. After a brief pause the engine Warning / Stop Engine-Blink Code Light (A) will begin to flash a code number. For example, flash three times....short pause....flash two times....long pause. This example is

code 32.

Fault codes are reported as active codes and stored codes. When a code 32 is flashed, it signifies the start of flashing Active Codes, when a code 33 is flashed, it signifies the start of flashing Stored Codes. When a code 88 is flashed there are no fault codes to report.

For example, if an engine had no Active Faults to report, and stored codes 18 and 62 to report, the following flash sequence would be observed:

-Flash three times....	short pause
-Flash two times....	long pause
-Flash eight times....	short pause
-Flash eight times....	long pause
-Flash three times....	short pause
-Flash three times....	long pause
-Flash one time....	short pause
-Flash eight times....	long pause
-Flash six times....	short pause
-Flash two times....	long pause

-Repeat above sequence

Turn ignition key (C) to the off position when recording of the fault codes is completed.

A list of fault codes and their brief description follow on the next page.

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