Inspection Procedure

1. Inspect entry detection area.
   1. When the electrical key is in either of the 2 inspection points in the illustration, the shift lever is in the P position and the brake pedal is depressed, check that the engine switch indicator illuminates in green.

      OK: Engine switch illuminates in green. 

      Fig 1: Identifying Inspection Points Of Electrical Key

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      If the engine switch does not illuminate, perform troubleshooting according to the PROBLEM SYMPTOMS TABLE of the smart access system with push-button start (starting) (engine switch indicator light does not come on) (See PROBLEM SYMPTOMS TABLE  ) and the smart access system with push-button start (Door lock) (matching for inside of the cabin cannot be performed) (See PROBLEM SYMPTOMS TABLE ).

NG: GO TO OTHER PROBLEM 

OK: Go to Next Step 

1. Remove the AM2 fuse from the engine room J/B.
2. Measure the resistance of the fuse.

   Standard resistance: Below 1 Ω 

NG: REPLACE FUSE 

OK: Go to Next Step 

1. Check that the connectors are securely connected and the terminals are not deformed or loose.

   OK: The connectors are securely connected and the terminals are not deformed or loose. 

NG: REPAIR OR REPLACE CONNECTORS 

OK: Go to Next Step 

1. Disconnect the E60 and E61 ECU connectors.
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection (Symbols)	Condition	Specified Condition
   E61-6 (AM1) - Body ground	Always	10 to 14 V
   E60-1 (AM2) - Body ground	Always	10 to 14 V

Fig 2: Identifying Main Body ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

1. Disconnect the DF ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection (Symbols)	Condition	Specified Condition
   DF-10 (GND1) - Body ground	Always	Below 1 Ω

Fig 3: Identifying Main Body ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

1. Delete the DTCs (See DTC CHECK / CLEAR  ).

   HINT:

   After all the DTCs are cleared, check if the trouble occurs again 5 seconds after the engine switch is turned on (IG).

2. Check for DTCs again.

   HINT:

   If the DTCs for the smart access system with push-button start malfunction are output, inspect those DTCs first (See DIAGNOSTIC TROUBLE CODE CHART  ).

   OK: No DTC is output. 

NG: GO TO DTC CHART 

OK: Go to Next Step 

1. Connect the intelligent tester to the DLC3.
2. Turn the engine switch on (IG).
3. Check the DATA LIST for proper functioning of the start switches 1 and 2.

   HINT:

   When using the intelligent tester with the engine switch off, turn on and off any of the door courtesy light switches repeatedly at 1.5 second intervals or less until communication between the tester and vehicle starts.

   MAIN BODY: 

   DATA LIST (MAIN BODY)
   
   

   Item	Measurement Item/Display (Range)	Normal Condition	Diagnostic Note
   STSW1	Start Switch 1/ON or OFF	ON: Engine switch is pushed OFF: Engine switch is not pushed	-
   STSW2	Start Switch 2/ON or OFF	ON: Engine switch is pushed OFF: Engine switch is not pushed	-

   OK: ON (engine switch is pushed) and OFF (engine switch is not pushed) appear on the screen. 

OK: REPLACE MAIN BODY ECU 

NG: Go to Next Step 

1. Remove the engine switch.
   Fig 4: Identifying Engine Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the switch.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   7 (SS1) - 5 (GND)	Pushed	Below 1 Ω
   2 (SS2) - 5 (GND)	Pushed	Below 1 Ω
   7 (SS1) - 5 (GND)	Not pushed	10 kΩ or higher
   2 (SS2) - 5 (GND)	Not pushed	10 kΩ or higher

NG: REPLACE ENGINE SWITCH 

OK: Go to Next Step 

1. Disconnect the E61 ECU connector.
   Fig 5: Identifying Main Body ECU And Engine Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection (Symbols)	Condition	Specified Condition
   E68-7 (SS1) - E61-17 (SSW1)	Always	Below 1 Ω
   E68-2 (SS2) - E61-16 (SSW2)	Always	Below 1 Ω
   E68-5 (GND) - Body ground	Always	Below 1 Ω
   E68-7 (SS1) or E61-17 (SSW1) - Body ground	Always	10 kΩ or higher
   E68-2 (SS2) or E61-16 (SSW2) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU