Operation Manual

7-19
FUEL INJECTION SYSTEM
Fault code No. 16
Symptom Signal from throttle position sensor does not change.
Fail-safe system Able to start
Able to drive
Diagnostic code No. D01
FI diagnostic tool display • 15–19° (Fully closed position)
• 95–101° (Fully opened position)
Checking method
• Check with throttle valves fully closed.
• Check with throttle valves fully open.
Item Item/components and probable cause Check or maintenance job Checking method
1 Installed condition of sensor.
• Make sure that the installation position is cor-
rect.
• Make sure that there are no problems with the
installation.
Check that the sensor is installed
securely and that there are no
pinched leads. Check that the
ECU is installed securely and that
there are no pinched leads.
Incorrect installation → Reinstall
or repair.
Incorrect installation position →
Properly install.
Set the switch on the FI di-
agnostic tool sub-wire har-
ness to "ON", and then
operate the throttle.
After completing the above
operation, check whether a
fault code number is dis-
played.
Fault code number is not
displayed → Service is
finished.
Fault code number is dis-
played → Refer to item 2.
2 Defective throttle position sensor. Execute the diagnostic mode (di-
agnostic code No. D01).
When throttle is fully closed: A
value of 15–19 is indicated.
When throttle is fully opened: A
value of 95–101 is indicated.
Displayed value is out of specifica-
tion → Replace.
Set the switch on the FI di-
agnostic tool sub-wire har-
ness to "ON", and then
operate the throttle.
After completing the above
operation, check whether a
fault code number is dis-
played.
Fault code number is not
displayed → Service is
finished.
Fault code number is dis-
played → Refer to item 3.
3 Malfunction in ECU. Replace the ECU.