Description
The fuel injector is a small, precise solenoid valve. When the ECM supplies a ground to the fuel injector circuit, the coil in the fuel injector is energized. The energized coil pulls the ball valve back and allows fuel to flow via the fuel injector into the intake manifold. The amount of fuel injected depends upon the injection pulse duration.
Pulse duration is the length of time the fuel injector remains open.
The ECM controls the injection pulse duration based on engine fuel needs.
Component Function Check
1.INSPECTION START
Turn ignition switch to START.
2.CHECK FUEL INJECTOR FUNCTION
With CONSULT
Without CONSULT
Clicking sound should be heard.
Diagnosis Procedure
1.CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT
2.DETECT MALFUNCTIONING PART
Check the following.
3.CHECK FUEL INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
4.CHECK FUEL INJECTOR
5.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK FUEL INJECTOR
B2553 ignition relay
Description
BCM turns ON the following relays to ignition power supply to each ECU when
the ignition switch is turned
ON.
Ignition relay-1 (inside IPDM E/R)
Ignition relay-2 (inside fuse block (J/B))
Front blower motor relay
BCM checks any ignition relay ON request for consistency wi ...
Xenon headlamp
Description
OPERATION
Refer to EXL-10, "Component Description".
PRECAUTIONS FOR TROUBLE
DIAGNOSIS
Installation or removal of the connector must be done with the
lighting switch OFF.
When the lamp is illuminated (when the lighting switch is ON), do
not touch the harness, HID control ...
Battery saver output/power supply circuit
Description
Provides the interior room lamp power supply. Also cuts the power supply when
the interior room lamp battery saver is activated.
Component Function Check
1.CHECK BATTERY SAVER OUTPUT/POWER SUPPLY FUNCTION
CONSULT
Turn ignition switch ON.
Turn each interior room lamp ON.
...