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 FRONT RH)

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
P TRANSMITTER	Passenger 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 U28 ECU connector.
Disconnect the p2 oscillator connector.

Measure the resistance of the wire harness side connector.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
U28-35 (CLG2) - U28-36 (CG2B)	Below 1 Ω
U28-36 (CG2B) - p2-5 (CLGB)	Below 1 Ω

Fig 1: Identifying U28 ECU And P2 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 p2 oscillator connector.
Disconnect the p1 antenna connector.

Measure the resistance of the wire harness side connector.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
p2-2 (SGT) - p1-6 (SGT2)	Below 1 Ω
p2-3 (ANT1) - p1-5 (ANT1)	Below 1 Ω
p2-8 (ANT2) - p1-2 (ANT2)	Below 1 Ω
p2-9 (TRG-) - p1-1 (TRG-)	Below 1 Ω

Fig 2: Identifying P2 Oscillator And P1 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 p2 oscillator connector.
Disconnect the M3 ECU connector.

Measure the resistance of the wire harness side connector.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
p2-1 (+B) - M3-7 (OSCB)	Below 1 Ω
p2-7 (GND) - M3-20 (OSCB)	Below 1 Ω

Fig 3: Identifying P2 Oscillator And M3 ECU Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK WIRE HARNESS (ANTENNA - ECU)

Disconnect the p1 antenna connector.
Disconnect the M3 ECU connector.

Measure the resistance of the wire harness side connector.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
p1-3 (TRG+) - M3-18 (TRG+)	Below 1 Ω

Fig 4: Identifying P1 Antenna And M3 ECU Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK OPERATION OF ELECTRICAL KEY ANTENNA FRONT RH
1. After replacing the electrical key antenna front RH 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 FRONT RH IS DEFECTIVE)

NG: Go to next step
CHECK OPERATION OF DOOR ELECTRICAL KEY OSCILLATOR FRONT RH
1. After replacing the door electrical key oscillator front RH 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 FRONT RH IS DEFECTIVE)