DTC U0423:68 [FORWARD SENSING CAMERA (FSC)]


id0902p9030300

Description

Error signal from instrument cluster

Detection condition
•  Forward sensing camera (FSC) receives the error signal from the instrument cluster for 5 s or more.
Fail-safe
•  Inhibits the lane departure warning system (LDWS).
•  Inhibits the forward obstruction warning (FOW) system.
Possible cause
•  Instrument cluster DTC is stored.
•  Instrument cluster malfunction
•  Forward sensing camera (FSC) malfunction
System wiring diagram

Diagnostic procedure

Step

Inspection

Action

1
VERIFY INSTRUMENT CLUSTER DTCs
•  Retrieve the instrument cluster DTCs using the M-MDS.
•  Are any DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
No
Go to the next step.
2
PERFORM DTC INSPECTION AND VERIFY INSTRUMENT CLUSTER MALFUNCTION
•  Clear the DTC for the forward sensing camera (FSC) using the M-MDS.
•  Turn the ignition switch to the ON position and wait for 6.5 s or more.
•  Retrieve the forward sensing camera (FSC) DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Replace the instrument cluster, then go to the next step.
No
Go to Step 4.
3
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Clear the DTC for the forward sensing camera (FSC) using the M-MDS.
•  Turn the ignition switch to the ON position and wait for 6.5 s or more.
•  Retrieve the forward sensing camera (FSC) DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the forward sensing camera (FSC).
Go to the next step.
No
Go to the next step.
4
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.