Electronic Devices
ELECTRONIC CONTROL SYSTEM
1. Before removing SFI wiring connectors, terminals. etc., first disconnect the power by either turning the ignition switch OFF or disconnecting the negative (-) terminal cable from the battery.
HINT: Always check the diagnostic trouble code before disconnecting the negative (-) terminal cable from the battery.
2. When installing the 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 SFI parts carefully, especially the ECM.
4. Do not be careless during troubleshooting as there are numerous transistor circuits and even slight terminal contact can further troubles.
5. Do not open the ECM 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 SFI parts and wiring connectors.
7. Parts should be replaced as an assembly.
8. Care is required when pulling out and inserting wiring connectors.
- Release the lock and pull out the connector, pulling on the connectors.
- Fully insert the connector and check that it is locked.
9. When inspecting a connector with a volt/ohmmeter
- Carefully take out the water-proofing rubber if it is a water-proof type connector.
- Insert the test probe into the connector from the wiring side when checking the continuity, amperage or voltage.
- Do not apply unnecessary force to the terminal.
- After checking, install the water-proofing rubber on the connector securely.
10. Use SST for inspection or test of the injector or its wiring connector.
SST 09842-30070
IF VEHICLE IS EQUIPPED WITH MOBILE COMMUNICATION SYSTEM
For vehicles with mobile communication systems such as two-way radios and cellular telephones, observe the following precautions.
(1) Install the antenna as far as possible away from the ECM, ECU and sensors of the vehicle's electronic system.
(2) Install the antenna feeder at least 20 cm (7.87 in.) away from the ECM, ECU and sensors of the vehicle's electronics systems. For details about ECM, ECU and sensors locations, refer to the section on the applicable component
(3) Do not wind the antenna feeder together with the other wiring. As much as possible, also avoid running the antenna feeder parallel with other wire harnesses.
(4) Confirm that the antenna and feeder are correctly adjusted.
(5) Do not install powerful mobile communications system.
FOR VEHICLES WITH AN AUDIO SYSTEM WITH BUILT-IN ANTI-THEFT SYSTEM
Audio System displaying the sign "ANTI - THEFT SYSTEM" shown above has a built-in anti-theft system which makes the audio system soundless if stolen.
If the power source for the audio system is cut even once, the anti-theft system operates so that even if the power source is reconnected, the audio system will not produce any sound unless the ID number selected by the customer is input again. Accordingly, when performing repairs on vehicles equipped with this system, before disconnecting the battery terminals or removing the audio system the customer should be asked for the ID number so that the technician can input the ID number afterwards. or else a request made to the customer to input the ID number. For the method to input the ID number or cancel the anti-theft system, refer to the Owner's Manual.