Inspection Procedure

1. Disconnect the oscillator connectors.
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage: 

   Front LH side 

   ELECTRICAL KEY OSCILLATOR - FRONT LH SIDE
   
   

   Tester Connection (Symbols)	Condition	Specified Condition
   o2-1 (+B) - o2-7 (GND)	Always	10 to 14 V

   Front RH side 

   ELECTRICAL KEY OSCILLATOR - FRONT RH SIDE
   
   

   Tester Connection (Symbols)	Condition	Specified Condition
   n2-1 (+B) - n2-7 (GND)	Always	10 to 14 V

   Fig 1: Identifying Oscillator Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the P33 ECU connector.

   Standard resistance 

   ELECTRICAL KEY OSCILLATOR CERTIFICATION ECU
   
   

   Tester Connection (Symbols)	Condition	Specified Condition
   P33-33 (CLG1) - o2-10 (CLG)	Always	Below 1 Ω
   P33-34 (CG1B) - o2-5 (CLGB)	Always	Below 1 Ω
   P33-35 (CLG2) - n2-10 (CLG)	Always	Below 1 Ω
   P33-36 (CG2B) - n2-5 (CLGB)	Always	Below 1 Ω
   P33-33 (CLG1) - Body ground	Always	10 kΩ or higher
   P33-34 (CG1B) - Body ground	Always	10 kΩ or higher
   P33-35 (CLG2) - Body ground	Always	10 kΩ or higher
   P33-36 (CG2B) - Body ground	Always	10 kΩ or higher

   Fig 2: Identifying Electrical Key Oscillator And Certification ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the door oscillator.
2. Check that the entry LOCK/UNLOCK function operates normally.

   OK: 

   Entry LOCK/UNLOCK function operates normally. 

OK: END (ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

NG: Go to next step 

1. Reconnect the ECU and the oscillator connectors.
2. Connect the intelligent tester to the DLC3.
3. Turn the engine switch on (IG).
4. Enter the following menus: DIAGNOSIS / ENHANCED OBD II/ACTIVE TEST.
5. Following the display on the tester, select the "ACTIVE TEST".

   SMART KEY (Certification ECU): 

   SMART KEY (CERTIFICATION ECU) CHART
   
   

   Item	Vehicle Condition/Test Details
   D TRANSMITTER	Door Oscillator ON/OFF
   P TRANSMITTER	Door Oscillator ON/OFF

   Fig 3: Identifying ECU And Oscillator Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Measure the frequency according to the value(s) in the table below.

   Standard 

   CERTIFICATION ECU OUTPUT SIGNAL
   
   

   Tester Connection (Symbols)	Condition	Specified condition
   P33-33 (CLG1) - P33-34 (CG1B)	During ACTIVE TEST	Frequency is generated (higher than 0 Hz)
   P33-35 (CLG2) - P33-36 (CG2B)	During ACTIVE TEST	Frequency is generated (higher than 0 Hz)

NG: REPLACE CERTIFICATION ECU 

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