Toyota Avalon Service & Repair Manual: Yaw Rate Sensor (C1A46)

Toyota Avalon Service & Repair Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Blind Spot Monitor System(for Gasoline Model) / Yaw Rate Sensor (C1A46)

DESCRIPTION

The blind spot monitor sensor receives yaw rate signals from the airbag sensor assembly (yaw rate and acceleration sensor) via CAN communication.

Blind Spot Monitor Master

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A46

Yaw Rate Sensor

A fail flag is transmitted from the airbag sensor assembly
  • Electronically controlled brake system
  • Blind spot monitor sensor RH
Blind Spot Monitor Slave

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A46

Yaw Rate Sensor

A fail flag is transmitted from the airbag sensor assembly
  • Electronically controlled brake system
  • Blind spot monitor sensor LH

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.

CHECK OTHER DTC OUTPUT (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG).

(d) Turn the Techstream on.

(e) Read the DTCs following the prompts on the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.

Chassis > ABS/VSC/TRAC > Trouble Codes

OK:

Electronically controlled brake system DTCs are not output.

NG

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

OK

2.

RECHECK DTC

(a) Turn the engine switch off.

(b) Turn the engine switch on (IG).

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

Body Electrical > Blind Spot Monitor Master > Trouble Codes Body Electrical > Blind Spot Monitor Slave > Trouble Codes

Result

Proceed to

No DTCs are output.

A

DTC C1A46 is output ("Blind Spot Monitor Master").

B

DTC C1A46 is output ("Blind Spot Monitor Slave").

C
A

USE SIMULATION METHOD TO CHECK

B

REPLACE BLIND SPOT MONITOR SENSOR RH

C

REPLACE BLIND SPOT MONITOR SENSOR LH

    Vehicle Speed Sensor (C1A45)

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    See More:

    Toyota Avalon Service & Repair Manual > Can Communication System(for Gasoline Model): Check Bus 1 Line for Short to +B
    DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 23 (CA1H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 8 (CA1L) of the central gateway ECU (network gateway ECU) and termin ...

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