DTC 2-1

DTC 2-1 ECU FAILS TO WRITE EEPROM CORRECTLY FOR 3RD TIME IN A ROW

CIRCUIT DESCRIPTION

DTC Detection Condition:

The telephone ECU (Mayday ECU) under the deck board determines the vehicle operating condition, vehicle position and user requirements, based on the information provided by various component parts. It also controls the LEXUS link system.

INSPECTION PROCEDURE

REPLACE TELEPHONE ECU ASSY