Service manual

FUEL INJECTION SYSTEM
FI ifl
Fault code No. 13 Symptom
Intake air pressure sensor-open or short circuit detected.
Used diagnostic code No. D03 (intake air pressure sensor)
Order
Inspection operation item and
probable cause
Operation item and countermeasure
Reinstatement
method
Connected condition of con-
nector
Inspect the coupler for any
pins that may have pulled
out.
Check the locking condition
of the coupler.
NOTE:
Set the main switch to OFF
before connecting or discon-
necting the connector.
Open or short circuit in wiring
harnes and /or sub lead.
Defective intake air pressure
sensor.
If there is a malfunction, reper it and connect
it securely.
Intake air pressure sensor coupler
Main wiring harness ECU coupler
Sub-wire harness coupler
Repair or replace if there is an open or short
circuit.
Between sensor coupler and ECU coupler
black/blue - black/blue
pink/white - pink/whte
blue- blue
Execute the diagnostic mode (code No. D03)
Replace the throttle body.
NOTE:
Do not remove the sensor assembly (MAQS).
1. Connect the digital circuit tester to the in-
take air pressure sensor coupler as shown.
Positive tester probe -» pink/white 0
Negative tester prove -» black/blue (2)
^T^S,
^
Br/W P/W
B/L
^
YZZZ^
© ©
nn
n • • • •
2. Set the main switch to “ON”.
3. Measure the intake air pressure sensor out-
put voltage.
n.
Intake air pressure sensor output
voltage
3.9~4.1V
4. Is the intake air pressure sensor OK?
Reinstated by turn-
ing the main switch
ON.
1
2
3
Y L
7-14