Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001C2DS
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 -           ]
Title: PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for HV Model): C164E; Stop Switch Circuit Malfunction; 2019 - 2022 MY Avalon HV [04/2018 -        ]

DTC

C164E

Stop Switch Circuit Malfunction

DESCRIPTION

When a stop light switch assembly circuit malfunction signal sent from the electronically controlled brake system is detected by the clearance warning ECU assembly, DTC C164E is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C164E

Stop Switch Circuit Malfunction

Stop light switch assembly circuit open

Electronically controlled brake system

CAUTION / NOTICE / HINT

NOTICE:

  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

  • After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).

    Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for HV Model): CALIBRATION

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Using the Techstream, check for DTCs according to the prompts on the screen.

HINT:

After turning the power switch from off to on (IG), wait 4 seconds or more before checking for DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

(b) Clear the DTCs according to the screen on the Techstream.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs

(c) Recheck for DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

HINT:

  • DTC C164E is stored when a malfunction signal sent from the electronically controlled brake system is detected.
  • If the malfunctioning part has been repaired or replaced before rechecking for DTCs, DTC C164E will not be output again.
  • If DTC C164E is output frequently, duplicate the conditions that cause the problem symptoms and perform troubleshooting again, even though the DTC was not output when rechecking for DTCs.

    Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

Result

Proceed to

DTC C164E is output

A

DTC C164E is not output

B
A

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

B

USE SIMULATION METHOD TO CHECK