Room Oscillator does not Recognize Key: Wiring Diagram

1. Check that the wireless door lock and unlock functions operate normally.

   OK : Wireless door lock functions operate normally. 

NG : GO TO WIRELESS DOOR LOCK CONTROL FUNCTION 

OK : GO TO NEXT STEP 

1. After replacing the key with a normally functioning one, check that the wireless lock and unlock functions operate normally.

   OK : Wireless lock and unlock functions operate normally. 

   OK : END (KEY IS DEFECTIVE) 

   NG : GO TO NEXT STEP 

1. Select the ACTIVE TEST, use the intelligent tester to generate a control command, and then check that the antenna operates.

   Certification ECU: 

   CERTIFICATION ECU - TEST DETAILS
   
   

   Item	Test Details Diagnostic	diagnostic Note
   FR TRANSMITTER	Indoor electrical key antenna (front) ON / OFF	-
   RR TRANSMITTER	Indoor electrical key antenna (rear) ON / OFF	-
   IN-BDR TRANSMITTER	Luggage compartment door inner antenna ON / OFF	-

   OK : When key is brought close to indoor electrical key antenna, antenna is turned OFF and indicator on key illuminates. 

   OK : REPLACE CERTIFICATION ECU ASSEMBLY 

   NG : GO TO NEXT STEP 

1. Disconnect the U35, V32 and V33 antenna connectors.
2. Disconnect the U28 ECU connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   U35-1 (CLG3) - U28-11 (CLG5)*1	Below 1 Ω
   U35-1 (CLG3) or U28-11 (CLG5)*1 - Body ground	10 kΩ or higher
   V32-1 (CLG4) - U28-13 (CLG6)*1	Below 1 Ω
   V32-1 (CLG4) - U28-13 (CLG6)*2 - Body ground	10 kΩ or higher
   V33-1 (CLG6) - U28-15 (CLG7)*3	Below 1 Ω
   V33-1 (CLG6) or U28-15 (CLG7)*3 - Body ground	10 kΩ or higher
   U35-3 (CLGB) - U28-12 (CLG5B)*1	Below 1 Ω
   U35-3 (CLGB) or U28-12 (CG5B)*1 - Body ground	10 kΩ or higher
   V32-3 (CLGB) - U28-14 (LG6B)*2	Below 1 Ω
   V32-3 (CLGB) - U28-14 (CG6B)*2 - Body ground	10 kΩ or higher
   V33-3 (CLGB) - U28-16 (CG7B)*3	Below 1 Ω
   V33-3 (CLGB) or U28-16 (CG7B)*3 -Body ground	10 kΩ or higher

   Fig 2: Identifying U28 ECU Connector And U35, V32 And V33 Antenna Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

   OK : GO TO NEXT STEP 

1. Carry the key into the vehicle.
2. Replace the indoor electrical key antenna with a new one.
3. Depress the brake pedal and check that the engine switch indicator illuminates in green.

   OK : Engine switch indicator illuminates in green. 

   OK : END (INDOOR ELECTRICAL KEY ANTENNA IS DEFECTIVE) 

   NG : REPLACE CERTIFICATION ECU ASSEMBLY