FI
Fault code No.
14
Symptom
Intake air pressure sensor – hose system malfunction (clogged or detached
hose).
Used diagnostic code No. 03 (intake air pressure sensor)
Order Inspection operation item and probable
cause
Operation item and countermeasure
Reinstatement
method
1
Intake air pressure sensor hose
detached, clogged, kinked, or pinched.
Intake air pressure sensor malfunction at
intermediate electrical potential.
Repair or replace the sensor hose.
Inspect and repair the connection.
Reinstated by
starting the
engine and
operating it at
idle.
2
Connected condition of connector
Intake air pressure sensor coupler
Main wiring harness ECU coupler
Check the coupler for any pins that may have pulled
out.
Check the looking condition of the coupler.
If there is a malfunction, repair it and connect it
securely.
3
Defective intake air pressure sensor.
Execute the diagnostic mode (Code No.03).
Replace if defective.
Refer to “Fault code No. 13”.
Fault code No.
15
Symptom
Throttle position sensor – open or short circuit detected.
Used diagnostic code No. 01 (throttle position sensor)
Order Inspection operation item and probable
cause
Operation item and countermeasure
Reinstatement
method
1
Installed condition of throttle position
sensor.
Check the installed area for looseness or pinching.
Check that it is installed in the specified position.
Refer to “THROTTLE BODIES” section.
Reinstated by
turning the main
switch ON.
2
Connected condition of connector
Inspect the coupler for any pins that
may have pulled out.
Check the locking condition of the
coupler.
If there is a malfunction, repair it and connect it
securely.
Throttle position sensor coupler
Main wiring harness ECU coupler
Sub-wire harness coupler
3
Open or short circuit in wiring harness
and/or sub lead.
Repair or replace if there is an open or short circuit.
Between sensor coupler and ECU coupler
Black/Blue – Black/Blue
Yellow – Yellow
Blue – Blue
4
Throttle position sensor lead wire open
circuit output voltage check.
Check for open circuit and replace the throttle posi-
tion sensor.
Black/Blue – Yellow
Open circuit item
Output voltage
Ground wire open circuit 5 V
Output wire open circuit
0 V
Power supply wire open
circuit
0 V
5
Defective throttle position sensor.
Execute the diagnostic mode (Code No.01).
Replace if defective.
Refer to “THROTTLE BODIES” section.
FUEL INJECTION SYSTEM
74
Содержание RX10LTGTYL
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