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Fault code No.
Symptom
Fail-safe system
Diagnostic code No.
FI diagnostic tool dis-
play
Checking method
Item Item/components and probable cause Check or maintenance job
1
Check the connection and locking con-
dition of the throttle position sensor
coupler.
Disconnect the coupler and check the
pins. (bent or broken terminals and
locking condition of the pins)
2
Check the connection and locking con-
dition of the wire harness ECU coupler.
Disconnect the coupler and check the
pins. (bent or broken terminals and
locking condition of the pins)
3
Continuity of harness
15
Throttle position sensor signal is not received properly.
Able to start
Able to drive
D01
• 15–19° (Fully closed position)
• 95–101° (Fully opened position)
• Check with throttle valves fully closed.
• Check with throttle valves fully open.
Poor connection → Properly
connect, repair, or replace.
Poor connection → Properly
connect, repair, or replace.
Open or short circuit → Re-
place.
Between throttle position
sensor coupler and ECU
coupler.
(Black/Blue–Black/Blue)
(Yellow–Yellow)
(Blue–Blue)
7-21
FUEL INJECTION SYSTEM
Checking method
Set the switch on the
FI diagnostic tool sub-
wire harness to "ON",
and then check the
fault code display.
Fault code number
is not displayed →
Service is finished.
Fault code number
is displayed → Re-
fer to item 2.
Set the switch on the
FI diagnostic tool sub-
wire harness to "ON",
and then check the
fault code display.
Fault code number
is not displayed →
Service is finished.
Fault code number
is displayed → Re-
fer to item 3.
Set the switch on the
FI diagnostic tool sub-
wire harness to "ON",
and then check the
fault code display.
Fault code number
is not displayed →
Service is finished.
Fault code number
is displayed → Re-
fer to item 4.
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