Inspection Procedure

1. Check that the manual door unlock function operates normally.

   OK: Manual door unlock function operates normally. 

NG:  GO TO POWER DOOR LOCK CONTROL SYSTEM 

OK: GO TO Next Step 

1. Check the DATA LIST for proper functioning of the driver side door courtesy switch.

   Main body ECU RH: 

   NORMAL CONDITION CHART
   
   

   Item	Measurement Item / Range (Display)	Normal Condition
   D DOR CTY SW	Driver side door courtesy switch / ON or OFF	ON: Courtesy switch is pushed OFF: Courtesy switch is not pushed

   OK: ON (door courtesy switch is pushed) appears on the screen. 

NG:  GO TO LIGHTING SYSTEM

OK: GO TO Next Step 

1. Check the DATA LIST for proper functioning of the door lock position switch.

   Multiplex network master switch: 

   NORMAL CONDITION CHART
   
   

   Item	Measurement Item / Range (Display)	Normal Condition
   LOCK POS SW	Door unlock detection switch signal/ ON or OFF	ON: Door is unlocked OFF: Door is locked

   OK: ON (door is unlocked) appears on the screen. 

NG:  GO TO POWER DOOR LOCK CONTROL SYSTEM 

OK: GO TO Next Step 

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

   Certification ECU: 

   CERTIFICATION ECU REFERENCE CHART
   
   

   Item	Test Details
   D SELECT SIG	Driver side select / ON or OFF

   OK: ON (D SELECT SIG is on) appears on the screen. 

NG: REPLACE CERTIFICATION ECU 

OK: GO TO Next Step 

1. With "D SELECT SIG" ON, check the DATA LIST for proper functioning of the touch sensor.

   Certification ECU: 

   NORMAL CONDITION CHART
   
   

   Item	Measurement Item / Range (Display)	Normal Condition
   D TOUCH SENSOR	Driver side door touch sensor / ON or OFF	ON: Sensor is touched OFF: Sensor is not touched

   OK: When driver side door touch sensor is touched, ON (Sensor is touched) appears on the screen. 

NG:  GO TO step  7

OK: GO TO Next Step 

1. After replacing the multiplex network master switch with a normal one, check that the entry unlock function operates normally.

   OK: Entry unlock function operates normally. 

NG: REPLACE CERTIFICATION ECU 

OK: END (MULTIPLEX NETWORK MASTER SWITCH IS DEFECTIVE) 

1. Measure the voltage of the oscillator connector.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART
   
   

   Tester Connection	Condition	Specified Condition
   4 (SEL) - Body ground	During Active Test	Below 1 V
   6 (SENS) - Body ground	Touch sensor is touched during Active Test	Below 1 V

Fig 1: Checking Door Electrical Key Oscillator Front LH
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE CERTIFICATION ECU 

NG: GO TO Next Step 

1. Disconnect the q2 oscillator connector.
2. Disconnect the q1 antenna connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART
   
   

   Tester Connection	Specified Condition
   q2-2 (SGT) - q1-6 (SGT2)	Below 1 Ω
   q2-3 (ANT1) - q1-5 (ANT1)	Below 1 Ω
   q2-8 (ANT2) - q1-2 (ANT2)	Below 1 Ω
   q2-9 (TRG-) - q1-1 (TRG-)	Below 1 Ω
   q2-2 (SGT) or q1-6 (SGT2) - Body ground	10 kΩ or higher
   q2-3 (ANT1) or q1-5 (ANT1) - Body ground	10 kΩ or higher
   q2-8 (ANT2) or q1-2 (ANT2) - Body ground	10 kΩ or higher
   q2-9 (TRG-) or q1-1 (TRG-) - Body ground	10 kΩ or higher

Fig 2: Identifying Q2 Oscillator And Q1 Antenna Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO Next Step 

1. Disconnect the U28 ECU connector.
2. Disconnect the q2 oscillator connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART
   
   

   Tester Connection	Specified Condition
   U28-5 (SEL1) - q2-4 (SEL)	Below 1 Ω
   U28-22 (SEN1) - q2-6 (SENS)	Below 1 Ω
   U28-33 (CLG1) - q2-10 (CLG)	Below 1 Ω
   U28-34 (CG1B) - q2-S (CLGB)	Below 1 Ω
   U28-5 (SEL1) or q2-4 (SEL) - Body ground	10 kΩ or higher
   U28-22 (SEN1) or q2-6 (SENS) - Body ground	10 kΩ or higher
   U28-33 (CLG1) or q2-10 (CLG) - Body ground	10 kΩ or higher
   U28-34 (CG1B) or q2-5 (CLGB) - Body ground	10 kΩ or higher

Fig 3: Identifying U28 ECU And Q2 Oscillator Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE DOOR ELECTRICAL KEY OSCILLATOR FRONT LH