Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001AZ96
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 - 08/2020]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): C1288; Error in Matching of ECUs; 2019 - 2020 MY Avalon [04/2018 - 08/2020]

DTC

C1288

Error in Matching of ECUs

DESCRIPTION

The skid control ECU (brake actuator assembly) stores this DTC when the previously learned values in the VSC system and engine information sent from the ECM are inconsistent, or when the learning has not completed after the skid control ECU (brake actuator assembly) is replaced with a new one.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1288

Error in Matching of ECUs

ECM does not match.

ECM

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Check if CAN communication system DTCs are output.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

INSPECT CAN COMMUNICATION SYSTEM

A

2.

PERFORM SYSTEM VARIANT LEARNING

(a) Perform system variant learning.

Click here 2019 - 2021 MY Avalon [04/2018 - 08/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): CALIBRATION

HINT:

  • System variant learning is automatically performed immediately after Test Mode is entered.
  • If learning has not yet been performed, the slip indicator light will remain on and DTC C1288 will be stored.
  • If system variant learning is not successful, the warning lights will not blink in the Test Mode pattern and DTC C1288 will not be cleared.
NEXT

3.

RECONFIRM DTC

(a) Clear the DTCs.

Chassis > ABS/VSC/TRAC/EPB > Clear DTCs

(b) Turn the engine switch off.

(c) Start the engine.

(d) Check if the same DTC is output.

Chassis > ABS/VSC/TRAC/EPB > Trouble Codes

Result

Proceed to

C1288 is not output

A

C1288 is output

B

A

END

B

REPLACE ECM