Operation Manual

7-25
FUEL INJECTION SYSTEM
Fault code No. 30
Symptom Turnover of vehicle
Fail-safe system Able to start
Unable to drive
Diagnostic code No. D08
FI diagnostic tool display Lean angle sensor
• 1.0 V (Upright)
• 4.0 V (Overturned)
Checking method Remove the ECU and incline it 45° or more.
Item Item/components and probable cause Check or maintenance job Checking method
1 The vehicle has overturned. Raise the vehicle upright. 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
2.
2 Installed condition of ECU.
•Make sure that the installation position is cor-
rect.
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
check the fault code dis-
play.
Fault code number is not
displayed → Service is
finished.
Fault code number is dis-
played → Refer to item 3.
3 Defective lean angle sensor. Execute the diagnostic mode (di-
agnostic code No. D30).
Upright: 1.0 V
Overturned: 4.0 V
Displayed value is incorrect → Re-
place the ECU.
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 4.
4 Malfunction in ECU. Replace the ECU.