User's Manual
User’s Manual 
  - 62 - 
STEP-A Test 
The  purpose  of  STEP-A  test  is  for  diagnosing  the  specific 
communication circuit of the G-scan. During proceeding with this  test, 
the  power  is  supplied  by  the  DLC  cable  and  the  Self  Test  adapter.  For 
the  details  of  Self  Test  adapter,  refer  to  the  ‘Connecting  the  Self  Test 
adapter’ in the ‘Basic Use of G-scan’. 
<Figure 3: Self Test A Screen> 
Method for proceeding with the test is as follows.   
1) Connect  the  DLC  cable  to  the  G-scan  and  connect  the  Self  Test 
adapter  to  the  other  end  of  DLC  cable.  Connect  the  adapter  to  the 
OBD-II connector of the vehicle. 
2) Turn  the  power  of  G-scan  ON  and  change  to  the  ‘Self  Test’  item  of 
configuration. 










