Inspection Procedure

CHECK DOOR CONTROL TRANSMITTER (OPERATION)
1. Temporarily replace the door control transmitter with a new or normally functioning one (see DOOR CONTROL TRANSMITTER (W/ SMART KEY SYSTEM) ).
2. Check that the wireless door lock and unlock functions operate normally.
OK: Wireless door lock and unlock functions operate normally.

NG: END (DOOR CONTROL TRANSMITTER IS DEFECTIVE)

OK: Go to next step

READ VALUE USING TECHSTREAM (INDOOR ELECTRICAL KEY OSCILLATOR)

Select the Active Test, use the Techstream to generate a control command, and then check that the indoor electrical key oscillator (front, rear) operates.

Smart Key

ACTIVE TEST CHART

Tester Display	Test Part	Control Range	Diagnostic Note
Fr-Seat Inside Transmitter	Indoor electrical key oscillator (front)	ON or OFF	-
Inside Trunk/Backdoor Transmitter	Indoor electrical key oscillator (rear)	ON or OFF	-

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

NG: Go to step 3

OK: REPLACE ECU AGGREGATION BOX (CERTIFICATION ECU) (See CERTIFICATION ECU (W/ SMART KEY SYSTEM) )

CHECK WIRE HARNESS (INDOOR ELECTRICAL KEY OSCILLATOR - CERTIFICATION ECU)

Disconnect the L25*1 and K25*2 oscillator connectors.
Disconnect the E84 ECU connector.
Measure the resistance of the wire harness side connectors.

HINT:

*1: for Front

*2: for Rear

Standard resistance:

for Front

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
L25-1 (CLG3) - E84-11 (CLG5)	Below 1 Ω
L25-3 (CLGB) - E84-12 (CG5B)	Below 1 Ω
L25-1 (CLG3) or E84-11 (CLG5) - Body ground	10 kΩ or higher
L25-3 (CLGB) or E84-12 (CGSB) -Body ground	10 kΩ or higher

for Rear

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
K25-1 (CLG6) - E84-15 (CLG7)	Below 1 Ω
K25-3 (CLGB) - E84-16 (CG7B)	Below 1 Ω
K25-1 (CLG6) or E84-15 (CLG7) - Body ground	10 kΩ or higher
K25-3 (CLGB) or E84-16 (CG7B) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

Fig 1: Identifying Indoor Electrical Key Oscillator And Certification ECU Connector Terminals

G05999996

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

CHECK INDOOR ELECTRICAL KEY OSCILLATOR (OPERATION)
1. Carry the key into the vehicle.
2. Temporarily replace the indoor electrical key oscillator with a new or normally functioning one.
3. Depress the brake pedal and check that the engine switch indicator illuminates in green.
OK: Engine switch indicator illuminates in green.

NG: REPLACE ECU AGGREGATION BOX (CERTIFICATION ECU) (See CERTIFICATION ECU (W/ SMART KEY SYSTEM) )

OK: END (INDOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)