13E-40
(4) Erasing diagnostic trouble codes
Disconnect the memory clear switch connector and then recon-
nect. Then all the diagnostic trouble codes stored in the engine
control unit will be cleared.
NOTE
• Pay attention that the stored codes can be erased only by
the operation of memory clear switch.
• When you want to keep the memory contents after the indi-
cation of stored codes, leave the memory clear switch dis-
connected and turn the starter switch in the off position.
Then connect the memory clear switch connector.
• When you change the combination of the injection pump
and engine control unit, you must rewrite the pump data
stored in the engine control unit. For this purpose, be sure
to perform the diagnostic trouble code erasing procedure.
TROUBLESHOOTING
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