DTC U3000:4B [BLIND SPOT MONITORING (BSM) SYSTEM]

id09021o066600

Caution
•  When replacing a blind spot monitoring (BSM) control module (RH) having any of the following part numbers, it is necessary to replace the blind spot monitoring (BSM) control module (LH) at the same time to perform the configuration normally.
―  DA6A-67Y80 A
―  DA6A-67Y80 B

Description

Temperature temporarily increases depending on various external and environmental factors (Blind spot monitoring (BSM) control module (LH) or (RH))
Detection condition
•  Blind spot monitoring (BSM) control module internal temperature of 115 °C {239 °F} or more detected for 10 s or more with the ignition switched ON (engine off or on).
Fail-safe
•  Blind spot monitoring (BSM) system is stopped.
Possible cause
•  Temporary rise in temperature due to some external environment factor
•  Blind spot monitoring (BSM) control module (RH) malfunction
•  Blind spot monitoring (BSM) control module (LH) malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY BLIND SPOT MONITORING (BSM) CONTROL MODULE INTERNAL TEMPERATURE
•  Display the following PIDs using the M-MDS.
―  INTNL_TMP_L
―  INTNL_TMP_R
•  Is the value 115 °C {239 °F} or more?
Yes
Replace the blind spot monitoring (BSM) control module in which the internal temperature increased, then go to Step 3.
(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.)
No
Go to the next step.
2
VERIFY IF MALFUNCTIONING LOCATION IS BLIND SPOT MONITORING (BSM) CONTROL MODULE (RH) DEPENDING ON REPEATABILITY
•  Clear the DTC for the blind spot monitoring (BSM) control module using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 11.5 s or more.
•  Retrieve the blind spot monitoring (BSM) control module DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Replace the blind spot monitoring (BSM) control module, then go to the next step.
(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.)
No
Go to Step 4.
3
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Clear the DTC for the blind spot monitoring (BSM) control module using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 11.5 s or more.
•  Retrieve the blind spot monitoring (BSM) control module DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the blind spot monitoring (BSM) control module (LH).
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.
(See DTC TABLE [BLIND SPOT MONITORING (BSM) SYSTEM].)
No
DTC troubleshooting completed.