DTC 2

DTC 2 (TWO) "CODE 2. BUTTON MODULE FAILURE"

CIRCUIT DESCRIPTION
This DTC is output when any of the telephone switches is turned ON for 15 sec.or more and this condition is judged as a stuck switch.
Note that this DTC is output even though it is kept pressed intentionally.

Wiring Diagram:

Step 1 - 2:

INSPECTION PROCEDURE

HINT: If DTC is not cleared even through the Mayday ECU is replaced, replace the Mayday Assembly (Transceiver, Back up battery, Bus buffer ECU and Mayday ECU).