Door Oscillator Circuit: Procedure

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT DOOR OSCILLATOR

Disconnect the oscillator connectors.

Fig 1: Identifying Door Oscillator Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the voltage according to the value(s) in the table below.

Voltage

Front LH side

Front RH side

Rear LH side

Rear RH side

Tester Connection	Condition	Specified Condition
W1-1 (+B) - W1-7 (GND)	Always	10 to 14 V

Tester Connection	Condition	Specified Condition
V1-1 (+B) - V1-7 (GND)	Always	10 to 14 V

Tester Connection	Condition	Specified Condition
Y1-1 (+B) - Y1-7 (GND)	Always	10 to 14 V

Tester Connection	Condition	Specified Condition
X1-1 (+B) - X1-7 (GND)	Always	10 to 14 V

NG → REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK WIRE HARNESS (DOOR ELECTRICAL KEY OSCILLATOR - DOOR ECU)
1. Disconnect the D39 and D40 ECU connector.
  
  Fig 2: Identifying D39 And D40 ECU Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance between the oscillator and the certification ECU to check for an open circuit in the wire harness.
  
  Fig 3: Identifying Door Oscillator Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Resistance
  
  Below 1 Ω
3. Measure the resistance between the oscillator and the certification ECU to check for an short circuit in the wire harness.
  Resistance
  
  10 kΩ or higher
  
  HINT:
  
  Refer to WIRING DIAGRAM the wiring diagram for connection of each terminal.
NG → REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

PERFORM ACTIVE TEST USING TECHSTREAM (CERTIFICATION ECU OUTPUT SIGNAL)

Reconnect the ECU and the oscillator connectors.

Fig 4: Identifying Certification ECU Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Connect Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the tester on.
Enter the following menus: Body Electrical / Smart Key / Active Test.

Perform the Active Test according to the display on the tester.

SMART KEY:

Tester Display	Test Part	Control Range	Diagnostic Note
D Transmitter	Door Oscillator	ON / OFF	-
P Transmitter	Door Oscillator	ON / OFF	-

Measure the frequency according to the value(s) in the table below.

Tester Connection	Condition	Specified Condition
D39-33 (CLG1) - D39-34 (CG1B)	During Active Test	Frequency is generated (higher than 0 Hz)
D39-35 (CLG2) - D39-36 (CG2B)	During Active Test	Frequency is generated (higher than 0 Hz)
D40-8 (CLG3) - D40-9 (CG3B)	During Active Test	Frequency is generated (higher than 0 Hz)
D40-10 (CLG4) - D40-11 (CG4B)	During Active Test	Frequency is generated (higher than 0 Hz)

OK → PROCEED TO PROBLEM SYMPTOMS TABLE NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

NG: Go to next step

REPLACE DOOR OSCILLATOR (CHECK OPERATION OF DOOR OSCILLATOR)
1. Replace the door oscillator.
2. Check that the entry LOCK / UNLOCK function operates normally.
  OK
  
  Entry LOCK / UNLOCK function operates normally.
NG → PROCEED TO PROBLEM SYMPTOMS TABLE NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

OK → END (DOOR OSCILLATOR IS DEFECTIVE)