DTC U0433:00 [INSTRUMENT CLUSTER]

id0902e8016300

Description

Error signal received from laser sensor
Detection condition
•  Instrument cluster detects the following conditions:
―  Malfunction of laser sensor or smart city brake support related system (laser sensor, DSC HU/CM, PCM)
―  Laser sensor control is temporarily inhibited.
Fail-safe function
•  Detection condition: Malfunction in laser sensor or smart city brake support related system (laser sensor, DSC HU/CM, PCM)
―  Inhibits the smart city brake support control.
―  Warning message related to the smart city brake support is displayed on the LCD (Instrument cluster (type A)).
•  Detection condition: Laser sensor control is temporarily inhibited.
―  Temporarily inhibits the smart city brake support control.
Possible cause
•  System related to the smart city brake support stores DTCs.
•  The laser sensor cannot temporarily function due to dirt on the windshield.
•  Laser sensor malfunction
•  Instrument cluster malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY ALL SYSTEM DTCs
•  Switch the ignition to off.
•  Switch the ignition ON (engine on) and wait for 10 s or more.
•  Perform a CMDTC self-test using the M-MDS.
•  Are any DTCs other than DTC U0433:00 displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [INSTRUMENT CLUSTER].)
No
Go to the next step.
2
VERIFY DTCs AGAIN
•  Clear the DTC for the instrument cluster using the M-MDS.
•  Switch the ignition ON (engine on) and wait for 10 s or more.
•  Perform a CMDTC self-test using the M-MDS.
•  Is the same DTC displayed?
Yes
Go to the next step.
No
Go to Step 6.
3
VERIFY LCD (INSTRUMENT CLUSTER (TYPE A))
•  Verify the LCD (Instrument cluster (type A)).
•  Is the “SCBS Clear windshield completely” or “SCBS Not Available” displayed in the LCD (Instrument cluster (type A))?
Yes
Clean the windshield, then go to the next step.
No
Go to Step 5.
4
PERFORM DTC INSPECTION AND VERIFY IF MALFUNCTION CAUSE IS LASER SENSOR
•  Clear the DTC for the instrument cluster using the M-MDS.
•  Switch the ignition ON (engine on) and wait for 10 s or more.
•  Perform a CMDTC self-test using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the laser sensor.
Go to the next step.
No
Go to Step 6.
5
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Clear the DTC for the instrument cluster using the M-MDS.
•  Switch the ignition ON (engine on) and wait for 10 s or more.
•  Perform a CMDTC self-test using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the instrument cluster.
Go to the next step.
No
Go to the next step.
6
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [INSTRUMENT CLUSTER].)
No
DTC troubleshooting completed.