Actron 9640 Manuel D’Utilisation

The STAR Test Mode can be used to retrieve DTCs from the PCM or other 

STAR (Self-Test Automatic Readout) compatible controllers installed in the 

vehicle. STAR Test Mode functions largely the same way and serves the same 

purpose as running KOEO and KOER tests. It is generally used as a last resort 

to check for DTCs in systems which may not be covered by KOEO and KOER 

testing (i.e. - Computer Ride Control suspension systems).

Select STAR Test Mode from the Ford 

Function List and press 

ENTER

Follow the instructions on the tool screen 

The TEST/HOLD parameter indicates 

the state of the STI (Self-Test Input). The 

ENTER key toggles this state from TEST 

to HOLD.

With the STI in the TEST state, the 

self-test begins. The STO (Self-Test Output) parameter flashes either a HIGH 

or LOW. A beep will accompany each LOW flash. Write down the 2– digit or 3 

– digit code for reference.

✓

Disregard the blink which may occur when ignition key is turned ON.

Depending on the vehicle being tested, determines if a three digit or two

digit code used. If required, refer to the vehicle service manual for

applicable code structure.

❒

A digit consists of consecutive LOW flashes or beep — count the 

number of LOWs for the digit 

❒

A short HIGH (short pause) occurs between digits. 

❒

A long HIGH (long pause) occurs between codes.

❒

There is no flash for the digit 0 (zero).

Ford Function List ?
` 9)STAR Test Mode ]

10)Code Lookup

[

11)Print Data    ~

Test/Hold On: Hold
ENTER To Test.

STAR Mode

 STO:LOW

Test/Hold On: Test
ENTER To Hold.