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”READ ON/OFF” commandmenu

”READ ON/OFF” command menu

Values relating to the different commands are stored in the control module's internal memory. These values are updated continuously, some of them as soon as the ignition switch is turned to the ON position although most of them require the engine to be started. When the engine is switched off the control module stores the most recent value recorded. This value is displayed next time the ignition switich is turned to the ON position but it is not relevant for commands requiring the engine to be started. The ISAT scan tool will then display an incorrect value.

The ISAT scan tool display texts below are presented in the same order as the commands under READ ON/OFF in the ISAT scan tool menu structure.





DIAGNOSTIC STATUS

• EVAP.

• Three way catalytic converter

• Oxygen sensor

• PREHEATING

• Secondary air

• TRIP OBD II

• DRIVE CYCLE

• WARMUP CYCLE

The "DIAGNOSTIC STATUS" command has a submenu in which different functions are shown:

FULL THROTTLE POS

YES / NO

Shows the input from the throttle position sensor.

YES for wide open throttle. NO in other cases.

IDLE POSITION

YES / NO

Shows the input from the throttle position sensor.

YES for idling. NO in other cases.

DRIVE

YES / NO

Shows the position of the automatic transmission selector lever.

YES for R, D, 3, 2, 1. NO for P and N.

Knock control

YES / NO

Shows whether the control module's knock control calculation routines are functional.

CAMSHAFT POSITION

ACTIVE/NOT ACTIVE

Shows the input from the camshaft position sensor.

ACTIVE if the sensor is operative. NOT ACTIVE if the sensor is faulty.

TORQUE LIMITATION

YES / NO

Shows the status of the transmission control module, requests torque limitation during shifting process.

AC IN

ON / OFF

Shows whether the ICE signal requesting A/C engagement is activated.







AC OUT

ON / OFF

Shows whether the output to the A/C relay is activated.

CHECK ENG. REQUEST

YES / NO

Shows whether the transmission control module has stored OBD II diagnostic trouble codes requiring the CHECK ENGINE lamp (MIL) to be on.

CHECK ENGINE (MIL)

ON 0 V/

OFF 12 V

Shows the status of the CHECK ENGINE lamp (MIL).

SHIFT UP

ON 0 V/

OFF 12 V

Shows the status of the SHIFT UP lamp.

SECOND. AIR RELAY

ON 0 V/

OFF 12 V

Shows the status of the secondary air injection pump relay.

TANK CONTENTS

LOW / HIGH

Shows the status of the tank contents, i.e. whether the main instrument display panel indicates low fuel level.