Inspection Procedure
- PERFORM ACTIVE TEST USING HAND-HELD TESTER
- Connect the hand-held tester (with CAN VIM) to the DLC3.
- Turn the ignition switch ON and press the hand-held tester main switch ON.
- Select the item below in the ACTIVE TEST and then check that the smart indicator operates.
THEFT WARNING ECU DESCRIPTIONItem Test Details Diagnostic Note SMART INDIC Turn smart indicator ON/OFF - OK: Smart indicator turns on and off.
NG: Go to step 2
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
- INSPECT LIGHT CONTROL RHEOSTAT
- Remove the rheostat.
- Apply 12 V positive (+) voltage between the terminals of the indicator and check the lighting condition of the smart indicator.
MEASUREMENT CONNECTIONMeasurement Connection Specified Condition Battery positive (+) --> Terminal 5 Turn ON Battery negative (-) --> Terminal 7 NOTE:- If the positive (+) lead and the negative (-) lead are incorrectly connected, the smart indicator does not illuminate.
- Voltage of more than 12V will damage the smart indicator.
- If the voltage is too low, the smart indicator will not illuminate.
NG: REPLACE LIGHT CONTROL RHEOSTAT
OK: GO TO NEXT STEP
- CHECK WIRE HARNESS (LIGHT CONTROL RHEOSTAT - THEFT WARNING ECU ASSY AND BODY GROUND)
- Disconnect the R4 rheostat connector.
- Disconnect the T5 ECU connector.
- Measure the resistance of the wire harness side connectors.
TESTER CONNECTION AND SPECIFIED CONDITIONTester Connection Specified Condition R4-5 (SEID) - T5-2 (IND2) Below 1 Ω R4-7 (E) - Body ground Below 1 Ω T5-2 (IND2) - Body ground 10kΩ higher Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE