DTC    C1ABD    Short to +B in Buzzer

DTC    C1ABE    Short to GND or Open in Buzzer

for Preparation Click here


DESCRIPTION

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

DTC No.
DTC Detection Condition
Trouble Area
C1ABD
When either of the following conditions is met:
  1. The blind spot monitor main switch (warning canceling switch assembly) is on with the ignition switch ON.
  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 LH
  2. RCTA buzzer (blind spot monitor buzzer)
  3. Wire harness or connector
C1ABE
When either of the following conditions is met:
  1. The blind spot monitor main switch (warning canceling switch assembly) is on with the ignition switch ON.
  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 LH
  2. RCTA buzzer (blind spot monitor buzzer)
  3. Wire harness or connector

WIRING DIAGRAM


E254403E18


INSPECTION PROCEDURE

NOTICE:
  1. When checking for DTCs, make sure that the blind spot monitor main switch (warning canceling switch assembly) is on.
  2. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK 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 (BATTERY, BLIND SPOT MONITOR SENSOR LH - RCTA BUZZER (BLIND SPOT MONITOR BUZZER))

  1. Disconnect the T17 blind spot monitor sensor LH connector.

  1. Disconnect the N42 RCTA buzzer (blind spot monitor buzzer) connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    N42-2 (BZN) - T17-3 (BUZ)
    		Always
    		Below 1 Ω
    N42-2 (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
    		Condition
    		Specified Condition
    N42-1 (BZP) - Body ground
    		Ignition switch ON
    		11 to 14 V
    N42-1 (BZP) - Body ground
    		Ignition 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) with a new or known good one (Click here).


NEXT


4.CHECK 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 LH (Click here)
OK

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