Filter
Top Products
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.
3 - 13