Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Check EFI No. 1 Fuse :
Check : Continuity of EFI No. 1 fuse.

OK : Continuity.
1. NG : Replace the faulty fuse.
2. OK : Go to next step.
Check Voltage Between Terminals +B & GND Of Transponder Key ECU Connector .
Preparation:
1. Turn ignition switch OFF.
2. Disconnect the transponder key ECU connector.
Check : Measure voltage between terminals +B and GND.

OK : Voltage: 10-14 volts
1. OK : Proceed to next circuit inspection shown in PROBLEM SYMPTOMS table.
2. NG : Go to next step.
Check Wire Harness & Connector Between Transponder Key ECU & Body Ground .
1. NG : Repair or replace wire harness or connector.
2. OK : Check and repair wire harness and connector between transponder key ECU and battery.