Schemes for switching on the main relay of the injection system
1 - battery,
2 - main fusible insert 2.0L,
3 - fusible insert AM2 (ZOA),
4 - ignition lock,
5 - EFI fuse (15A),
6 - JGN fuse (7.5A),
7 - the main relay of the fuel injection system,
8 - electronic control unit.
1. Remove the cover of the relay box and the main relay of the injection system.
2. Check the resistance of the relay winding.
A) Use an ohmmeter to check for continuity between the terminals "1" And "2".
b) Then use an ohmmeter to verify that there is no continuity between the terminals "3" And "5".
3. Check relay operation.
A) Apply battery voltage to terminals "1" And "2" relay connector.
b) Use an ohmmeter to check for continuity between the terminals "3" And "5".
If the conditions in points 1 and 2 are not met, replace the relay. If necessary, the relay housing can be removed and, before throwing it away, try to eliminate the cause of the failure. To do this, clean all contacts, and check the resistance of the windings in two directions, since there may be diodes that shunt the windings. If the winding resistances are the same in both directions, there are no diodes, then you can connect the battery in any order. If not, then connect the battery with the correct polarity.
4. Install the relay and relay box cover.