Actron 9640 User Manual

The first time scan tool links to the vehicle, communication is automatically 

detected, and is used until scan tool is turned OFF or another vehicle is 

diagnosed.

✓

If an Error Message displays, make sure OBDII connector is attached,

and ignition key is ON. Cycle ignition key to OFF for 10 seconds, then ON.

This may be required to reset computer. If required, select YES to try

again. If problem still exists, refer to “Error Messages” on page 9-2. 

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On initial link to vehicle, Scan Tool checks status of I/M Monitors no

matter which function is selected.

The Manual Info function, tells user what section of manual to use. This section 

covers Global OBDII Diagnostics.

The I/M Readiness (Inspection and Maintenance) function displays state of 

vehicle’s OBD II Monitors. Monitors are tests to verify operation of emission 

related systems or components and detect out-of-range values. Vehicle may 

have to be operated under certain driving conditions to initiate a monitor. If 

vehicle loses electrical power or codes are erased, monitors may be cleared. 

This function can be performed with key ON — engine OFF (KOEO) or key ON 

— engine Running (KOER).

Abbreviations and names for OBDII Monitors supported by Scan Tool are 

shown below. They are required by the U.S. Environmental Protection Agency 

(EPA). Not all monitors are supported by all vehicles. 

Misfire Monitor ..............................Misfire Monitor

Fuel System Mon .........................Fuel System Monitor

Com Component ..........................Comprehensive Components Monitor

Catalyst Mon ................................Catalyst Monitor

Htd Catalyst..................................Heated Catalyst Monitor

Evap System Mon ........................Evaporative System Monitor

Sec Air System............................Secondary Air System Monitor

A/C Refrig Mon.............................Air Conditioning Refrigerant Monitor

Oxygen Sens Mon.......................Oxygen Sensor Monitor

Oxygen Sens Htr .........................Oxygen Sensor Heater Monitor

EGR System Mon ........................Exhaust Gas Recirculation System Monitor