Toyota CH-R Service Manual: Short to GND or Open in Buzzer (C1ABE)

Toyota CH-R Service Manual / Park Assist / Monitoring / Blind Spot Monitor System / Short to GND or Open in Buzzer (C1ABE)

DESCRIPTION

  • DTC C1ABE is stored when the blind spot monitor sensor RH (Slave) 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 (Slave)
  • RCTA buzzer (blind spot monitor buzzer)
  • Wire 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.

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 - BATTERY AND BLIND SPOT MONITOR SENSOR RH (SLAVE))

(a) Disconnect the M64 RCTA buzzer (blind spot monitor buzzer) connector.

(b) Disconnect the M63 blind spot monitor sensor RH (Slave) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

M64-2 (BZN) - M63-3 (BUZ)

Always

Below 1 Ω

M64-2 (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

M64-1 (BZP) - Body ground

Ignition switch to ON

11 to 14 V

M64-1 (BZP) - Body ground

Ignition switch off

Below 1 V

*a

Component with harness connected

RCTA buzzer (blind spot monitor buzzer)
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

REPLACE RCTA BUZZER (BLIND SPOT MONITOR BUZZER)

(a) Replace the RCTA buzzer (blind spot monitor buzzer).

Click here

NEXT

4.

CHECK DTC

(a) Clear the DTCs.

Click here

Body Electrical > Blind Spot Monitor Slave > Clear DTCs

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

Body Electrical > Blind Spot Monitor Slave > Trouble Codes

OK:

No DTCs are output.

OK

END
NG

REPLACE BLIND SPOT MONITOR SENSOR RH (SLAVE)

    Software Incompatibility with Body Control Module "B" (U1331)
    DESCRIPTION This DTC is stored when the destination information of the main body ECU (multiplex network body ECU) does not match that of the blind spot monitor sensors. DTC No. ...

    Blind Spot Monitor Slave Module Beam Axis Inspection Incomplete (C1ABC)
    DESCRIPTION This DTC is stored when a beam axis adjustment has not been performed for the blind spot monitor sensor RH (Slave). HINT: This DTC is always stored after replacing a blind spot monito ...

    Other materials:

    Toyota CH-R Service Manual > Rear Crossing Traffic Alert Buzzer: Installation
    INSTALLATION PROCEDURE 1. INSTALL BLIND SPOT MONITOR BUZZER (a) Connect the connector. (b) Engage the clamp to install the blind spot monitor buzzer. 2. INSTALL FUSE BOX OPENING COVER Click here 3. CONNECT HOOD LOCK CONTROL LEVER SUB-ASSEMBLY Click here 4. INSTALL NO. 1 ...

    Toyota CH-R Service Manual > Blind Spot Monitor System: Blind Spot Monitor Slave Module (C1AB7)
    DESCRIPTION This DTC is stored when the blind spot monitor sensor RH (Slave) detects an internal malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area C1AB7 Blind Spot Monitor Slave Module The b ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2024 Copyright www.tochr.net
    0.0116