Gilera 633499 Workshop Manual page 143

Runner Purejet
pure jet injection
1. Check that the insertion of the connection to the
vehicle is correct.
YES point 3 NO point 2
2. Restore the connection.
3. Turn to «OFF», wait a few seconds and turn
again to «ON». If the fault persists, make the fol-
lowing checks:
GO TO point 4
4. Check the ECU supplies.
GO TO point 5
5. Disconnect tester from diagnostic connector.
Check the continuity of the ground line between
diagnostic connector and vehicle mass.
Diagnostic connector Pin «2» - Battery negative =
continuity
YES point 7 NO point 6
6. Restore the continuity of the ground line.
7. Connect the interface wiring.
Do not connect the wiring with the ECU. Check the
continuity of the line between the diagnostic con-
nector and ECU.
Pin 3 = diagnostic connector
Pin 21 = continuity
YES point 9 NO point 8
Specific tooling
020481Y Control unit interface wiring
8. Restore the wiring continuity.
9. Check the insulation of the line connecting the
diagnostic connector with the ECU.
(Keep the ECU disconnected)
21 - 15 > 1MOhm
21 - 1 > 1MOhm
YES point 11 NO point 10
INJ PJ - 21