Work Support Mode

Work Item

Work item	Condition	Usage
IDLE AIR VOL LEARN	The idle air volume that keeps the engine within the specified range is memorized in ECM.	When learning the idle air volume.
FUEL PRESSURE RELEASE	Crank a few times after engine stalls.	When releasing fuel pressure from fuel line.
TARGET IGN TIM ADJ*	Idle condition	When adjusting target ignition timing.
TARGET IDLE RPM ADJ*	Idle condition	When setting target idle speed.
SELF-LEARNING CONT	The coefficient of self-learning control mixture ratio returns to the original coefficient.	When clearing mixture ratio self-learning value.
G SENSOR CALIBRATION	Park the vehicle on a flat road. Adjust pressure in all tires to the specified value.	Calibrates G sensor.
WASTEGATE ACTUATOR POSI LEARN VALUE CLEAR	Ignition switch is ON and Engine running	When learning full close position of wastegate actuator after ECM or turbocharger assembly is replaced.
ENGINE COOLANT BYPASS VALVE	Condition: The valve is in the full opening position	When filing with coolant.
A/F INITIAL LEARNING	Air fuel ratio learning frequency is low while idling, learning the air fuel ratio of the idling domain in ECM.	When learning the air fuel ratio.
VALVE TIMING OFFSET DATA WRITING	Ignition switch: ON (Engine stopped)	When adjusting valve timing offset angle after ECM or engine assembly is replaced.
VALVE TIMING OFFSET DATA CLEAR	Ignition switch: ON (Engine stopped)	When clear the valve timing offset angle data after replacing the camshaft or timing chain.
CLSD THL POS LEARN	Ignition on and engine stopped.	When learning the throttle valve closed position
EVAP SYSTEM CLOSE	Close the EVAP canister vent control valve in order to make EVAP system close under the following conditions. Ignition switch ON Engine not running Ambient temperature is above 0°C (32°F) No vacuum and no high pressure in EVAP system Fuel tank temperature is more than 0°C (32°F) Within 10 minutes after starting "EVAP SYSTEM CLOSE" When trying to execute "EVAP SYSTEM CLOSE" under the condition except above, CONSULT will discontinue it and display appropriate instruction. NOTE: When starting engine, CONSULT may display "Battery voltage is low. Charge battery", even in using charged battery.	When detecting EVAP vapor leak point of EVAP system
VIN REGISTRATION	In this mode, VIN is registered in ECM.	When registering VIN in ECM
SAVING DATA FOR REPLC CPU	In this mode, save data that is in ECM.	When ECM is replaced.
WRITING DATA FOR REPLC CPU	In this mode, write data stored by "SAVE DATA FOR CPU REPLC" in work support mode to ECM.	When ECM is replaced.

*: This function is not necessary in the usual service procedure.