Dtc C1Abd Short To +B In Buzzer

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Park Assist Monitoring. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

CHECK HARNESS AND CONNECTOR (RCTA BUZZER - BATTERY AND BLIND SPOT MONITOR SENSOR RH)

REPLACE RCTA BUZZER (BLIND SPOT MONITOR BUZZER)

CHECK FOR DTC

DTC C1ABD Short to +B in Buzzer

DTC C1ABE Short to GND or Open in Buzzer


DESCRIPTION

  1. DTC C1ABD is stored when the blind spot monitor sensor RH detects a +B short in RCTA buzzer (blind spot monitor buzzer) circuit.
  2. DTC C1ABE is stored when the blind spot monitor sensor RH detects a ground short or open in RCTA buzzer (blind spot monitor buzzer) circuit.

DTC No.
DTC Detection Condition
Trouble Area
C1ABD
Both of the following conditions are met:
  1. The blind spot monitor main switch (steering pad switch assembly [multi-function switch]) is on with the engine switch on (IG).
  2. The blind spot monitor sensor is not sending voltage to the buzzer but the buzzer receives voltage above a specified level for a specified period of time.
  1. Blind spot monitor sensor RH
  2. RCTA buzzer (blind spot monitor buzzer)
  3. Harness or connector
C1ABE
Both of the following conditions are met:
  1. The blind spot monitor main switch (steering pad switch assembly [multi-function switch]) is on with the engine switch on (IG).
  2. The current flowing to the buzzer is below a specified value when buzzer operation voltage is being sent to the buzzer.
  1. Blind spot monitor sensor RH
  2. RCTA buzzer (blind spot monitor buzzer)
  3. Harness or connector

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Park Assist Monitoring.Toyota Parking Assist-Sensor System. Dtc C1Abd Short To +B In Buzzer


INSPECTION PROCEDURE

NOTICE:
  1. When checking for DTCs, make sure that the blind spot main switch (steering pad 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 FOR DTC

  1. Clear the DTCs (Click here).

  1. Recheck for DTCs and check if the same DTC is output again.

    OK:
    No DTCs are output.


NG
Go to step 2
OK

USE SIMULATION METHOD TO CHECK (Click here)

2.CHECK HARNESS AND CONNECTOR (RCTA BUZZER - BATTERY AND BLIND SPOT MONITOR SENSOR RH)

  1. Disconnect the L61 RCTA buzzer (blind spot monitor buzzer) connector.

  1. Disconnect the r1 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
    L61-2 (BZN) - r1-3 (BUZ)
    		Always
    		Below 1 Ω
    L61-2 (BZN) - Body ground
    		Always
    		10 kΩ or higher

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    L61-1 (BZP) - Body ground
    		Engine switch on (IG)
    		11 to 14 V
    L61-1 (BZP) - Body ground
    		Engine switch off
    		Below 1 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.REPLACE RCTA BUZZER (BLIND SPOT MONITOR BUZZER)

  1. Replace the RCTA buzzer (blind spot monitor buzzer) (Click here).


NEXT


4.CHECK FOR DTC

  1. Clear the DTCs (Click here).

  1. Recheck for DTCs and check if the same DTC is output again.

    OK:
    No DTCs are output.


NG
REPLACE BLIND SPOT MONITOR SENSOR RH (Click here)
OK

END (RCTA BUZZER [BLIND SPOT MONITOR BUZZER] WAS DEFECTIVE)