Operation Manual

FUEL INJECTION SYSTEM
8-38
5 Crankshaft position sensor
malfunction
Sensor inspection procedure
Refer to “CHECKING THE
CRANKSHAFT POSITION
SENSOR” on page 8-135.
Replace if defective.
Crank the engine, and check
the fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
6 ECU malfunction Replace the ECU.
Fault code No. 13
Item
Intake air pressure sensor: open or short circuit detected. (no nor-
mal signals are received from the intake air pressure sensor.)
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. d:03
Meter display Displays the intake air pressure.
Procedure
Set the engine stop switch to “ ”, and then operate the throttle
while pushing the start switch “ ”. (If the display value changes,
the performance is OK.)
Item/components and
probable cause
Check or maintenance job
Sensor inspection proce-
dure
1 Connection of intake air pres-
sure sensor coupler
Check the connection of the
coupler is secure.
Disconnect the coupler, and
check each pin (for bending,
wear, or locking).
Poor connection → Connect it
securely, or repair/replace the
wire harness.
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
2 Connection of wire harness
ECU coupler
Check the connection of the
coupler is secure.
Disconnect the coupler and
check each pin (for bending,
wear, or locking).
Poor connection → Connect it
securely, or repair/replace the
wire harness.
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Fault code No. 12
Item
Crankshaft position sensor: no normal signals are received from the
crankshaft position sensor.
Fail-safe system
Unable to start engine
Unable to drive vehicle
Diagnostic code No. —
Meter display —
Procedure —
Item/components and
probable cause
Check or maintenance job
Sensor inspection proce-
dure