Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001FAI2
Model Year Start: 2019 Model: RAV4 Prod Date Range: [11/2018 -           ]
Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: C1ABE; Short to GND or Open in Buzzer; 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]

DTC

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

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) Turn the ignition switch off.

(b) Turn the ignition switch to ON.

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

Click here 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: DTC CHECK / CLEAR

Body Electrical > Blind Spot Monitor Slave > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

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

(a) Disconnect the N19 RCTA buzzer (blind spot monitor buzzer) connector.

(b) Disconnect the Q13 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

N19-2 (BZN) - Q13-3 (BUZ)

Always

Below 1 Ω

N19-2 (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

N19-1 (BZP) - Body ground

Ignition switch ON

11 to 14 V

N19-1 (BZP) - Body ground

Ignition switch off

Below 1 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

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 here 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; PARK ASSIST / MONITORING: REAR CROSS TRAFFIC ALERT BUZZER: REMOVAL

(b) Clear the DTCs.

Click here 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: DTC CHECK / CLEAR

Body Electrical > Blind Spot Monitor Slave > Clear DTCs

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

Click here 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: DTC CHECK / CLEAR

Body Electrical > Blind Spot Monitor Slave > Trouble Codes

OK:

No DTCs are output.

OK

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

NG

REPLACE BLIND SPOT MONITOR SENSOR RH 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL 2020 - 2021 MY RAV4 RAV4 HV [10/2019 - 12/2021]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL