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FUEL INJECTION SYSTEM
Fault code No. 44
Symptom Error is detected while reading or writing on EEPROM.
Fail-safe system Able to start engine (depending on circumstances)
Able to drive vehicle (depending on circumstances)
Diagnostic code No. D60
FI diagnostic tool display 00: No fault
01: CO adjustment valve
07: Power Tuner adjustment values 0–8 for fuel injection amount or ignition timing
Checking method
Item Item/components and probable cause Check or maintenance job Checking method
1 Determine the area of the problem Execute the diagnostic mode (di-
agnostic code No. D60).
00 is displayed: Refer to item 4.
01 is displayed: Refer to item 2.
07 is displayed: Refer to item 3.
Set the switch on the FI di-
agnostic tool sub-wire har-
ness to "ON", and then
check the fault code dis-
play.
Fault code number is not
displayed Service is
finished.
Fault code number is dis-
played Repeat item 1.
If the fault code number
is still displayed, refer to
item 3.
2 EEPROM data error (CO adjustment value) Change the CO density and write
the changed setting on EEPROM.
Set the switch on the FI di-
agnostic tool sub-wire har-
ness to "ON", and then
check the fault code dis-
play.
Fault code number is not
displayed Service is
finished.
Fault code number is dis-
played Repeat item 1.
If the fault code number
is still displayed, refer to
item 4.
3 EEPROM data error (Power Tuner adjustment
values for fuel injection amount or ignition tim-
ing)
Erase the setting map in the diag-
nostic mode (diagnostic code No.
D65).
Set the switch on the FI di-
agnostic tool sub-wire har-
ness to "ON", and then
check the fault code dis-
play.
Fault code number is not
displayed Service is
finished.
Fault code number is dis-
played Refer to item 1.
4 Malfunction in ECU. Replace the ECU.
214


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