Description
The optical sensor measures ambient light and transmits the optical sensor signal to the bcm.
Component function check
1.Check optical sensor signal by consult
Consult
*: Illuminates the optical sensor. The value may be less than the standard value if brightness is weak.
Is the inspection result normal? YES >> Optical sensor is normal.
NO >> Refer to EXL-103, "Diagnosis Procedure".
Diagnosis procedure
Regarding Wiring Diagram information, refer to EXL-53, "Wiring Diagram".
1.Check optical sensor power supply input
Is the inspection result normal? Yes >> go to 2.
No >> go to 3.
2.Check optical sensor ground circuit
Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 5.
3.Check optical sensor power supply for open circuit
Is the inspection result normal? Yes >> replace bcm. Refer to bcs-73, "removal and installation".
No >> repair or replace the harness or connectors.
4.Check optical sensor signal open circuit
Is the inspection result normal? Yes >> replace the optical sensor. Refer to exl-130, "removal and installation".
No >> repair or replace harness or connectors.
5.Check optical sensor ground for open circuit
Is the inspection result normal? YES >> Replace BCM. Refer to BCS-73, "Removal and Installation".
NO >> Repair or replace harness or connector.
Wiring diagram
Sport mode system
Wiring diagram
...
P0122, P0123 TP Sensor
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0122 or P0123 is displayed with DTC P0643, first perform the
trouble diagnosis for DTC P0643.
Refer to EC-353, "DTC Logic".
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible caus ...
System
EPS system
EPS SYSTEM : System Description
SYSTEM DIAGRAM
DESCRIPTION
EPS control unit performs an arithmetical operation on data,
such
as steering wheel turning force (sensor signal) from the torque
sensor, vehicle speed signal, etc. Then it generates an optimum
assist torque ...