RM35X0E _56 Audio / Visual / Telematics _079315 PARK ASSIST / MONITORING _0385738 BLIND SPOT MONITOR SYSTEM C

PARK ASSIST / MONITORING  BLIND SPOT MONITOR SYSTEM  C1ABE  Short to GND or Open in Buzzer  


DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area
C1ABE Short to GND or Open in Buzzer
Both of the following conditions are met:
·

The blind spot monitor system is on

·

The blind spot monitor sensor is not sounding the buzzer but the buzzer receives voltage below a specified level for a specified period of time.


·

Blind spot monitor sensor RH

·

RCTA buzzer (blind spot monitor buzzer)

·

Harness or connector



WIRING DIAGRAM

E404571E02
3.281,1.313 3.625,1.51 0.344,0.198 10 false Q4 3.281,1.469 4.896,1.844 1.615,0.375 10 false RCTA Buzzer (Blind Spot Monitor Buzzer) 5.604,1.927 6.063,2.104 0.458,0.177 10 false e3 5.604,2.083 6.802,2.406 1.198,0.323 10 false Blind Spot Monitor Sensor RH 3.354,0.927 3.5,1.104 0.146,0.177 10 false 1 5.646,1.021 5.979,1.219 0.333,0.198 10 false BUZ 5.479,0.917 5.625,1.094 0.146,0.177 10 false 3 4.698,0.917 4.844,1.094 0.146,0.177 10 false 2 4.302,1.021 4.635,1.219 0.333,0.198 10 false BZN 3.51,1.01 3.844,1.208 0.333,0.198 10 false BZP 2.094,1.188 3.021,1.448 0.927,0.26 10 false ECU-IG1 NO.4 0.052,1.021 1.719,1.281 1.667,0.26 10 false from IG1 NO.2 Relay

CAUTION / NOTICE / HINT

NOTICE:
·

When checking for DTCs, make sure that the blind spot monitor system is turned on.

·

Inspect the fuses for circuits related to this system before performing the following procedure.



PROCEDURE

1.CHECK DTC
a.

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

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>BLIND SPOT MONITOR SYSTEM>DTC CHECK / CLEAR

Body Electrical > Blind Spot Monitor Slave > Trouble Codes
50001 314
OK:

No DTCs are output.



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

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

Disconnect the Q4 RCTA buzzer (blind spot monitor buzzer) connector.


b.

Disconnect the e3 blind spot monitor sensor RH connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
Q4-2 (BZN) - e3-3 (BUZ) Always Below 1 Ω
Q4-2 (BZN) - Body ground Always 10 kΩ or higher



d.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
Q4-1 (BZP) - Body ground Ignition switch ON 11 to 14 V
Q4-1 (BZP) - Body ground Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

3.CHECK RCTA BUZZER (BLIND SPOT MONITOR BUZZER)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK RCTA BUZZER (BLIND SPOT MONITOR BUZZER)
a.

Replace the RCTA buzzer (blind spot monitor buzzer) with a new or known good one.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>REAR CROSS TRAFFIC ALERT BUZZER>REMOVAL


b.

Clear the DTCs.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>BLIND SPOT MONITOR SYSTEM>DTC CHECK / CLEAR

Body Electrical > Blind Spot Monitor Slave > Clear DTCs
50002 314

c.

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

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>BLIND SPOT MONITOR SYSTEM>DTC CHECK / CLEAR

Body Electrical > Blind Spot Monitor Slave > Trouble Codes
50001 314
OK:

No DTCs are output.



Result:
Proceed to
OK
NG



OK

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

NG

REPLACE BLIND SPOT MONITOR SENSOR RH

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>BLIND SPOT MONITOR SENSOR>REMOVAL