Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Steering Sensor Signal Malfunction (C1784)

DESCRIPTION

Steering sensor signals are sent to the absorber control ECU via CAN communication.

If a communication error is detected, DTC C1784 is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Memory

C1784

Steering Sensor Signal Malfunction

A steering sensor communication error is detected, or a steering sensor power malfunction is detected for 5 seconds or more.

Electronically controlled brake system

Does not come on

Yes

(Under some of the detection conditions (sensor power +B open malfunction is detected), DTC is not stored.)

PROCEDURE

1.	GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

(a) Go to electronically controlled brake system.

Click here

END

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Smart Key System(for Start Function, Gasoline Model): Security Indicator Light Does not Blink
DESCRIPTION The certification ECU (smart key ECU assembly) blinks the security indicator light (radio and display receiver assembly) when the immobiliser is set (engine switch off). The certification ECU (smart key ECU assembly) receives the security indicator light signal from the main body ECU (mu ...

Toyota Avalon (XX50) 2019-2022 Owners Manual