Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001YNVH
Model Year Start: 2022 Model: Avalon Prod Date Range: [08/2021 -           ]
Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM (for Gasoline Model): P163081; Communication Error from VSC to ECM Invalid Serial Data Received; 2022 MY Avalon [08/2021 -        ]

DTC

P163081

Communication Error from VSC to ECM Invalid Serial Data Received

DESCRIPTION

The skid control ECU (brake actuator assembly) sends signals such as brake request signals to the ECM. If an abnormal signal is detected, the ECM stores DTC P163081.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

DTC Output from

P163081

Communication Error from VSC to ECM Invalid Serial Data Received

When the dynamic radar cruise control system is operating, the ECM detects abnormal data sent from the skid control ECU (brake actuator assembly) for approximately 1 second or more.

  • Electronically controlled brake system
  • ECM

Does not come on

Radar Cruise1

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the ECM, refer to registration.

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

PROCEDURE

1.

CHECK FOR DTCs (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

(a) Check for electronically controlled brake system DTCs.

Chassis > Brake/EPB > Trouble Codes

Result

Proceed to

Electronically controlled brake system DTCs are not output

A

Electronically controlled brake system DTCs are output

B

B

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

A

2.

CHECK FOR DTCs (Radar Cruise1)

(a) Clear the DTCs.

Powertrain > Radar Cruise1 > Clear DTCs

(b) Make sure that the DTC detection conditions are met.

HINT:

If the detection conditions are not met, the system cannot detect the malfunction.

(c) Check for DTCs.

Powertrain > Radar Cruise1 > Trouble Codes

Result

Proceed to

DTC P163081 is not output

A

DTC P163081 is output

B

A

USE SIMULATION METHOD TO CHECK

B

REPLACE ECM