Inspection Procedure

WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Check voltage between terminals IND of transponder key ECU connector and body ground.

PREPARATION:

Turn the ignition switch to ON and diagnosis mode.

CHECK:

Measure voltage between terminals IND of transponder key ECU connector and body ground when security indicator light is coming on and going off.

OK:

INDICATOR LIGHT VOLTAGE REFERENCE

Indicator light	Voltage
Light up	3 - 6 V
Does not light up	Below 1 V

Fig 1: Checking Voltage Between Terminals IND Of Transponder Key ECU Connector And Body Ground

NG : Proceed to next circuit inspection shown problem symptom table (See PROBLEM SYMPTOMS TABLE ).
OK : Go to Next Step

Check combination meter (See CIRCUIT ).
1. NG : Replace combination meter.
2. OK : Check and replace wire harness and connector (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).