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Inspection Procedure

  1. Check the continuity of the EFI fuse located in the engine room No. 1 relay block. If continuity exists, go to the next step. If continuity does not exist, replace the failure fuse.
  2. Turn the ignition switch OFF. Disconnect the transponder key amplifier (ECU) connector. Measure the voltage between terminals 1 (+B) and 5 (GND) of the transponder key ECU connector. See CONNECTOR IDENTIFICATION . If voltage is between 10-14 V, proceed to the next circuit inspection of the symptom. See PROBLEM SYMPTOM INDEX  table. If the voltage is not as specified, go to the next step.
  3. Check the wiring harness and connector between the transponder key amplifier (ECU) and body ground. If the results are OK, check and repair the wiring harness and connector between the transponder key amplifier (ECU) and battery. If the results are not good, repair or replace the wiring harness or connector.
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