DTC U0405:00 [ACTIVE DRIVING DISPLAY]


id0902r2997600

Description

Error signal received from radar unit

Detection condition
•  The active driving display receives the error signal from the radar unit for the ignition switched ON (engine off or on).
Fail-safe
Possible cause
•  DTCs are stored in the radar unit.
•  Radar unit malfunction
•  Active driving display malfunction
System wiring diagram

Diagnostic Procedure

Step

Inspection

Action

1
VERIFY RADAR UNIT DTCs
•  Retrieve the radar unit 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
VERIFY IF MALFUNCTIONING LOCATION IS RADAR UNIT DEPENDING ON REPEATABILITY
•  Clear the DTC for the active driving display using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 20 s or more.
•  Retrieve the active driving display DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Replace the radar unit, then go to the next step.
No
Go to Step 4.
3
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Clear the DTC for the active driving display using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 20 s or more.
•  Retrieve the active driving display DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Replace the active driving display, then 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.