Component Function Check
1.CHECK FUEL PUMP FUNCTION
Fuel pressure pulsation should be felt on the fuel feed hose for 1 second after ignition switch is turned ON.
Is the inspection result normal? YES >> INSPECTION END
NO >> Proceed to EC-453, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-1
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-2
Is the inspection result normal? YES >> GO TO 8.
NO >> Repair or replace error-detected parts.
3.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-3
Is the inspection result normal? YES >> GO TO 6.
NO >> GO TO 4.
4.CHECK FUSE
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace 15A fuse.
5.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-4
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
6.CHECK FUEL PUMP GROUND CIRCUIT
Is the inspection result normal? YES >> GO TO 7.
NO >> Repair or replace error-detected parts.
7.CHECK FUEL PUMP
Check fuel pump. Refer to EC-455, "Component Inspection (Fuel Pump)".
Is the inspection result normal? YES >> GO TO 8.
NO >> Replace fuel filter and fuel pump. Refer to FL-6, "Exploded View".
8.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to GI-39, "Intermittent Incident".
Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-30, "Removal and Installation" (With intelligent key) or PCS-58, "Removal and Installation" (Without intelligent key).
NO >> Repair or replace error-detected parts.
Component Inspection (Fuel Pump)
1.CHECK FUEL PUMP
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace fuel filter and fuel pump. Refer to FL-6, "Removal and Installation".
Control Units and Electrical Parts
PRECAUTIONS
Never reverse polarity of battery terminals.
Install only parts specified for a vehicle.
Before replacing the control unit, check the input and output and
functions of the component parts.
Do not apply excessive force when disconnecting a connector.
Do not apply exce ...
Intermittent Incident
DESCRIPTION
Sometimes the symptom is not present when the vehicle is brought in for
service. If possible, re-create the
conditions present at the time of the incident. Doing so may help avoid a No
Trouble Found Diagnosis. The fol-
lowing section illustrates ways to simulate the conditions/env ...
Removal and installation
Horn
Exploded view
Horn high
Horn low
Front
Note:
Shown with the front fascia removed for clarity.
Removal and installation
Horn low
Removal
Remove the core support cover. Refer to ext-23, "removal and
installation".
Disconnect the horn low harness connectors. ...