Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

CHECK WIRE HARNESS
1. Disconnect the L16 luggage oscillator inner assy connector.
2. Disconnect the L17 luggage oscillator outer assy connector.
3. Measure the voltage and resistance between the wire harness side connectors and body ground.
  Standard:
  
  Luggage oscillator inner:
  
  Fig 1: Voltage Specifications (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Luggage oscillator outer:
  
  Fig 2: Voltage Specifications (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 3: Identifying L16 Luggage Oscillator Inner Assy Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step
PERFORM ACTIVE TEST USING HAND-HELD TESTER
1. Connect the hand-held tester to the DLC3
2. Turn the ignition switch ON and press the hand-held tester main switch ON.
3. Select the item below in the ACTIVE TEST and then check that the oscillator operates.
  Theft warning ECU:
  
  Fig 4: Hand-Held Tester Values
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: Go to next step

When the smart key is brought close to the door the oscillator is turned ON and the indicator on the smart key illuminates.

NG: Go to step 3

OK: Go to next step

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
CHECK WIRE HARNESS (THEFT DETERRENT ECU - LUGGAGE OSCILLATOR (INNER, OUTER)) (THEFT WARNING ECU OR LUGGAGE OSCILLATOR (INNER, OUTER) - BODY GROUND)
1. Disconnect the T5 ECU connector.
2. Disconnect the L16 luggage oscillator inner assy connector.
3. Disconnect the L17 luggage oscillator outer assy connector.
4. Measure the resistance between the wire harness side connectors.
  Standard:
  
  Luggage oscillator inner:
  
  Fig 5: Resistance Specifications (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Luggage oscillator outer:
  
  Fig 6: Resistance Specifications (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 7: Identifying Wire Harness Theft Deterrent ECU
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )