11. EFI SYSTEM MXU 450i
11-14
How To Show Failure Code
z You can read the failure code by as below :
z Turn switch on. The CELP will be lighted
for 2 seconds then off. The CELP start to
blink to show the failure codes
z (The number of blinks from 1 to 22).
z If vehicle got more than one failure code,
the CELP will be shown from lower number
failure code and then show the other higher
number one after four seconds. All the
failure codes would be shown repeatedly.
How To Reset Failure Code
z After repairing the trouble, you should clear
the failure code or it will still exist in the
ECU memory. When you maintain this
vehicle next time, it will show again and
you get confuse.
z Turn switch on. The CELP will be lighted
for two seconds then off.
z The CELP begins to blink to show the
failure codes.
z The self-diagnosis memory data will be
erased when all the failure codes has
showed for 4 cycles.
Example (failure codes 1 and 2):
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