Default (Limp Home) Mode If a transmission fault is detected by the EAT ECU, the ECU adopts a limp home mode strategy. 'TRANS.FAILSAFE' is displayed in the message centre and, if the fault has an effect on engine emissions, the MIL will also be illuminated. In default mode, PR and N functions operate normally (if the fault allows these selections) and the EAT ECU locks the transmission in 5th gear to allow the driver to take the vehicle to the nearest dealer. The torque converter lockup clutch is disabled and reverse lockout will not function. If the vehicle is stopped and subsequently restarted in the default mode condition, the EAT ECU operates normally until the fault which caused the condition is detected again.