Inspection Procedure

CHECK MANUAL DOOR UNLOCK OPERATION
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

READ VALUE OF INTELLIGENT TESTER (DOOR COURTESY LIGHT SWITCH)

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

Multiplex network master switch assembly:

MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - DATA LIST

Item	Measurement Item / Range (Display)	Normal Condition	Diagnostic Note
COURTESY SW	Courtesy switch / ON or OFF	ON: Courtesy light switch is pushed OFF: Courtesy light switch is not pushed	-

OK:

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

NG: GO TO LIGHTING SYSTEM

OK: Go to next step

READ VALUE OF INTELLIGENT TESTER (LOCK POSITION SWITCH)

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

Multiplex network master switch assembly:

MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - DATA LIST

Item	Measurement Item / Range (Display)	Normal Condition	Diagnostic Note
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

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (DRIVER SIDE SELECT)

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

Certification ECU:

CERTIFICATION ECU - ACTIVE TEST LIST

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

OK:

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

NG: REPLACE CERTIFICATION ECU ASSEMBLY

OK: Go to next step

READ VALUE OF INTELLIGENT TESTER (DRIVER SIDE TOUCH SENSOR)

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

Certification ECU:

CERTIFICATION ECU - DATA LIST

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

OK:

When driver side is selected ON, ON (Sensor is touched) appears on the screen.

NG: Go to step 7

OK: Go to next step

CHECK OPERATION OF MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
1. After replacing the multiplex network master switch assembly with a normal one, check that the entry unlock function operates normally.
  OK:
  
  Entry unlock function operates normally.
NG: REPLACE CERTIFICATION ECU ASSEMBLY

OK: END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY IS DEFECTIVE)

CHECK DOOR ELECTRICAL KEY OSCILLATOR FRONT LH

Measure the voltage of the oscillator connector.

Standard voltage

VOLTAGE SPECIFICATION

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: Identifying Door Electrical Key Connector Terminals LH

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE CERTIFICATION ECU ASSEMBLY

NG: Go to next step

CHECK WIRE HARNESS (OSCILLATOR - ANTENNA)

Disconnect the q2 oscillator connector.
Disconnect the q1 antenna connector.

Measure the resistance of the wire harness side connectors.

Standard resistance

RESISTANCE SPECIFICATION

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

Fig 2: Identifying Q2 Oscillator And Q1 Antenna Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK WIRE HARNESS (ECU - OSCILLATOR)

Disconnect the U28 ECU connector.
Disconnect the q2 oscillator connector.

Measure the resistance of the wire harness connectors.

Standard resistance

RESISTANCE SPECIFICATION

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) - q2-5 (CLGB)	Below 1 Ω

Fig 3: Identifying U28 ECU And Q2 Oscillator Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE ELECTRICAL KEY OSCILLATOR FRONT LH