Description
ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously in the sensors belonging to the same group as the short-circuited sensor.
Sensor power supply 1
NOTE: If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.
Sensor power supply 2
Diagnosis Procedure
1.CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-1
Is the inspection result normal? YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-2
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair open circuit.
3.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair short to ground or short to power in harness or connectors.
4.CHECK COMPONENTS
Check the following.
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace malfunctioning component.
Preparation
Commercial Service Tool
Tool name
Description
Brake drum clearance gauge
Measuring rear rotor drum inner diamete
Power tool
Loosening nuts, screws and bolts
...
Instrument panel
Vent
Headlight/fog light (if so equipped)/turn signal switch
Meters, gauges, warning/indicator
lights and Vehicle Information Display
Windshield wiper/washer switch and rear window wiper/washer switch
/Ignition switch (if so equipped)
Push-button ...
BSW driving situations
Another vehicle approaching from behind
The Blind Spot indicator light illuminates if a
vehicle enters the detection zone from behind in
an adjacent lane.
However, if the overtaking vehicle is traveling
much faster than your vehicle, the indicator light
may not illuminate before the dete ...