Inspection Procedure

CHECK MANUAL DOOR LOCK AND UNLOCK OPERATION
1. Check that the manual door lock and unlock function operates normally.
  OK:
  
  Manual door lock and unlock function operates normally.
NG: GO TO POWER DOOR LOCK CONTROL SYSTEM

OK: Go to next step

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (DOOR ELECTRICAL KEY OSCILLATOR REAR LH)

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
DR TRANSMITTER	Rear LH side transmitter ON / OFF	-

OK:

When key is brought close to door oscillator that is OFF, indicator light on key illuminates.

OK: REPLACE CERTIFICATION ECU ASSEMBLY

NG: Go to next step

CHECK WIRE HARNESS (ECU - OSCILLATOR)

Disconnect the U33 ECU connector.
Disconnect the s2 oscillator connector.

Measure the resistance of the wire harness side connector.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
U33-8 (CLG3) - s2-10 (CLG)	Below 1 Ω
U33-9 (CG3B) - s2-5 (CLGB)	Below 1 Ω

Fig 1: Identifying U33 ECU And S2 Oscillator Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK WIRE HARNESS (OSCILLATOR - ANTENNA)

Disconnect the s2 oscillator connector.
Disconnect the s1 antenna connector.

Measure the resistance of the wire harness side connector.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
s2-2 (SGT) - s1-6 (SGT2)	Below 1 Ω
s2-3 (ANT1) - s1-5 (ANT1)	Below 1 Ω
s2-8 (ANT2) - s1-2 (ANT2)	Below 1 Ω
s2-9 (TRG-)- s1-1 (TRG-)	Below 1 Ω

Fig 2: Identifying S2 Oscillator And S1 Antenna Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK WIRE HARNESS (OSCILLATOR - ECU)

Disconnect the s2 oscillator connector.
Disconnect the P3 ECU connector.

Measure the resistance of the wire harness side connector.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
s2-1 (+B) - P3-7 (OSCB)	Below 1 Ω
s2-7 (GND) - P3-20 (OSCE)	Below 1 Ω

Fig 3: Identifying S2 Oscillator Connector And P3 ECU Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK WIRE HARNESS (ANTENNA - ECU)

Disconnect the s1 antenna connector.
Disconnect the P3 ECU connector.

Measure the resistance of the wire harness side connector.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
s1-3 (TRG+) - P3-18 (TRG+)	Below 1 Ω

Fig 4: Identifying S1 Antenna And P3 ECU Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK OPERATION OF ELECTRICAL KEY ANTENNA REAR LH
1. After replacing the electrical key antenna rear LH with a normal one, check that the entry lock and unlock functions operate normally.
  OK:
  
  Entry lock and unlock functions operate normally.
OK: END (ELECTRICAL KEY ANTENNA REAR LH IS DEFECTIVE)

NG: Go to next step
CHECK OPERATION OF DOOR ELECTRICAL KEY OSCILLATOR REAR LH
1. After replacing the door electrical key oscillator rear LH with a normal one, check that the entry lock and unlock functions operate normally.
  OK:
  
  Entry lock and unlock functions operate normally.
NG: REPLACE CERTIFICATION ECU ASSEMBLY

OK: END (DOOR ELECTRICAL KEY OSCILLATOR REAR LH IS DEFECTIVE)