Dtc U0232 Lost Communication With Blind Spot Monitor Slave Module


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH - BLIND SPOT MONITOR SENSOR RH)

CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BATTERY AND BODY GROUND)

CHECK BLIND SPOT MONITOR SENSOR RH

DTC U0232 Lost Communication with Blind Spot Monitor Slave Module


DESCRIPTION

This DTC is stored when the blind spot monitor sensor LH judges that there is a communication problem with the blind spot monitor sensor RH.

DTC Code
DTC Detection Condition
Trouble Area
U0232
The blind spot monitor sensor LH cannot receive signals from the blind spot monitor sensor RH.
  1. CAN communication Line
  2. Harness or connector
  3. Blind spot monitor sensor LH
  4. Blind spot monitor sensor RH

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Park Assist Monitoring.Toyota Parking Assist-Sensor System (W/ Multi-Display). Dtc U0232 Lost Communication With Blind Spot Monitor Slave Module


INSPECTION PROCEDURE

NOTICE:
  1. When checking for DTCs, make sure that the blind spot monitor main switch assembly (multi-function switch) is on.
  2. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH - BLIND SPOT MONITOR SENSOR RH)

  1. Disconnect the R42 blind spot monitor sensor LH connector.

  1. Disconnect the R43 blind spot monitor sensor RH connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    R42-1 (CA2P) - R43-1 (CA2P)
    		Always
    		Below 1 Ω
    R42-6 (CA2N) - R43-6 (CA2N)
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE CAN LINE OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BATTERY AND BODY GROUND)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Park Assist Monitoring.Toyota Parking Assist-Sensor System (W/ Multi-Display). Dtc U0232 Lost Communication With Blind Spot Monitor Slave Module

  1. Disconnect the blind spot monitor sensor RH connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    R43-5 (BRB) - Body ground
    		Engine switch on (IG)
    		11 to 14 V
    Engine switch off
    		Below 1 V

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    R43-10 (BRGD) - Body ground
    		Always
    		Below 1 Ω
Text in Illustration
*a
Front view of wire harness connector
(to Blind Spot Monitor Sensor RH)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK BLIND SPOT MONITOR SENSOR RH

  1. Replace the blind spot monitor sensor RH with a new or normally functioning one (LandCruiser RM00000470F01GX.html).

  1. Clear the DTCs (LandCruiser RM000004RS201SX.html).

  1. Recheck for DTCs and check if the same DTC is output again (LandCruiser RM000004RS201SX.html).

    OK:
    No DTCs are output.


NG
REPLACE BLIND SPOT MONITOR SENSOR LH (LandCruiser RM00000470F01GX.html)
OK

END (BLIND SPOT MONITOR SENSOR RH IS DEFECTIVE)