Work Support Mode

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

• FUEL PUMP WILL STOP BY TOUCHING "START" DURING IDLING.

  CRANK A FEW TIMES AFTER ENGINE STALLS.

When releasing fuel pressure from fuel line

SELF-LEARNING CONT

• THE COEFFICIENT OF SELF-LEARNING CONTROL MIXTURE RATIO RETURNS TO THE ORIGINAL COEFFICIENT.

When clearing mixture ratio self-learning value

TARGET IGN TIM ADJ*

• IDLE CONDITION

When adjusting target ignition timing

CLSD THL POS LEARN

• Ignition on and engine stopped.

When learning the throttle valve closed position

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