Ignition Spark Retard Test

This test is conducted to make sure the appropriate electric signals are being sent to ignition Nos. 1-6.

Tech 2 must be used for this test.

Test Procedure: 

1. Connect Tech 2 to the vehicle DLC.
2. Run the Engine at idle.
3. Select F3: Miscellaneous Test in the Application Menu.
   Fig 1: Selecting F3: Miscellaneous Test In Application Menu

   Courtesy of ISUZU MOTOR CO.
4. Select F7: Ignition Spark Retard Test in the Miscellaneous Test.
   Fig 2: Selecting F7: Ignition Spark Retard Test In Miscellaneous Test

   Courtesy of ISUZU MOTOR CO.
5. Make sure of engine speed change.
6. If engine speed changes, the ignition electric circuit is normal. If engine speed does not change, the ignition electric circuit or the ignition itself is not normal.