Inspection Procedure

1. When the door control switch of the master switch assembly is operated, check that the locked doors unlock.

   OK: Door locks operate normally. 

NG: GO TO POWER DOOR LOCK CONTROL SYSTEM  (See PROBLEM SYMPTOMS TABLE )

OK: Go to next step 

1. Check if the power back door is equipped on the vehicle.

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   w/ Power Back Door System	A
   w/o Power Back Door System	B

B:  Go to step  4

A: Go to next step 

1. When the power back door switch is operated, check that the power back door opens.

   OK: Power back door is open. 

NG: GO TO POWER BACK DOOR SYSTEM  (See INITIALIZATION )

OK: Go to next step 

1. Using the Techstream, read the Data List.

   Main Body 

   DIAGNOSTIC NOTE NORMAL CONDITION CHART
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Back Door Handle SW	Back door opener switch / ON or OFF	ON: Back door opener switch pushed OFF: Back door opener switch not pushed	-

   OK: "ON" (switch is pushed) and "OFF" (switch is not pushed) appears on the screen. 

NG: Go to step 5 

OK: REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

1. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 (UL) - 2 (L) 3 (B) - 2 (L)	Not pushed	10 kΩ or higher
   1 (UL) - 2 (L)	Lock switch pushed	Below 1 Ω
   3 (B) - 2 (L)	Open switch pushed	Below 1 Ω

   Fig 1: Checking Back Door Opener Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE BACK DOOR OPENER SWITCH  (See BACK DOOR OPENER SWITCH )

OK: Go to next step 

1. Disconnect the E1 ECU connector.
2. Disconnect the S7 switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   E1-26 (BDSU) - S7-3 (B)	Always	Below 1 Ω
   E1-26 (BDSU) or S7-3 (B) - Body ground	Always	10 kΩ or higher

   Fig 2: Identifying E1 ECU Connector And S7 Switch Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)