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Ford Historic Self-Test Routines
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6
Erase Codes
The vehicle service manual may recommend erasing Continuous Memory
Codes from vehicle’s memory, and then drive vehicle to duplicate the malfunc-
tion before beginning a diagnostic test. If KOEO codes were read using Fast
Codes, the memory codes have already been erased.
Only Continuous Memory Codes can be erased from the vehicle without repair-
ing the fault. To remove KOEO and KOER Codes, the fault must be repaired
since they only exist when a fault exists.
EEC-IV Erase Codes
Select
Erase Codes
from the Ford
Function List and press
.
Press
after each message.
Follow all instructions on the display.
1) Turn Ign Key Off.
2) Transmission In Park Or Neutral.
3) Wait 10 Seconds.
4) Turn Ign Key On.
Press
to begin erasing the
codes. The procedure takes less 1
minute to run.
Press
to return to the Ford Func-
tion List.
MECS Erase Codes
Select
Erase Codes
from the Ford
Function List and press
.
Press
after each message.