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DTC Diagnosis Procedure
 
 
1.CHECK FUSE
Check that the following fuse is not blown:
Signal nameFuse No.
Ignition power supply40 (10 A)
Is the fuse blown?
Replace the blown fuse after repairing the affected circuit.
.
 
2.CHECK ADAS CONTROL UNIT 2 POWER SUPPLY CIRCUIT
Check voltage between ADAS control unit 2 harness connector and ground.
TerminalConditionVoltage
(Approx.)
(+)(–)
ADAS control unit 2GroundIgnition switch
ConnectorTerminal
B420OFF0 V
ONBattery voltage
Is the inspection result normal?
.
Repair the ADAS control unit 2 power supply circuit.
 
3.CHECK ADAS CONTROL UNIT 2 GROUND CIRCUIT
  1. Turn the ignition switch OFF.
  2. Disconnect the ADAS control unit 2 harness connector.
  3. Check for continuity between ADAS control unit 2 harness connector and ground.
    ADAS control unit 2GroundContinuity
    ConnectorTerminal
    B430Yes
Is the inspection result normal?
Inspection End.
Repair the ADAS control unit 2 ground circuit.