Electronic Control System

ELECTRONIC CONTROL / PARTS






1. Before removing EFI wiring connectors, terminals, etc., first disconnect power by either turning OFF the ignition switch or disconnecting the battery terminals.
2. When installing a battery, be especially careful not to incorrectly connect the positive and negative cables.






3. Do not permit parts to receive a severe impact during removal or installation. Handle all EFI parts carefully and, in particular, the ECU.
4. Do not be careless during troubleshooting as there are numerous transistor circuits and even slight terminal contact can cause further troubles.
5. Do not open the ECU cover.
6. When inspecting during rainy weather, take care to prevent entry of water. Also, when washing the engine compartment, prevent water from getting on the EFI parts and wiring connectors.
7. Parts should be replaced as an assembly.
8. Sufficient care is required when pulling out and inserting wiring connectors.






a. Release the lock and pull out the connector, pulling on the connectors.






b. Fully insert the connector and insure that it is locked.

9. When inspecting a connector with a circuit tester.






a. Carefully take out the water-proofing rubber if it is a water-proof type connector.






b. Insert the tester probe into the connector from the wiring side when checking the continuity, amperage or voltage.
c. Do not apply unnecessary force to the terminal.
d. After checking, install the water-proofing rubber on the connector securely.






10. Use SST for inspection or test of the injector, cold start injector or its wiring connector.

SST 09842-30050 (A) and 09842-30070 (B)