Inspection Procedure

Fig 1: Checking Power Source Voltage

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1. Turn the ignition switch OFF.
2. Disconnect the transponder key amplifier connector.
3. Measure the voltage between terminals +B and GND of the transponder key amplifier connector.

OK: Voltage: 9 - 14 V 

1. OK: Proceed to next circuit inspection shown in problem symptoms table (See PROBLEM SYMPTOMS ).
2. NG: Go to next step.

Fig 2: Locating EFI1 Fuse

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1. Remove the EFI1 fuse from the engine room J/B.
2. Check the continuity of the EFI1 fuse.

OK: Continuity 

1. OK: Go to next step.
2. NG: Check for short in all harness and components connected to EFI1 fuse.

1. OK: Check and repair harness and connector between transponder key amplifier and battery (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
2. NG: Repair or replace harness or connector.