Inspection Procedure

B: Go to step  4

A: Go to next step 

w/o Power Back Door System

1. Remove the back door lock assembly.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance (Courtesy switch) 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Door Lock Latch Position	Specified Condition
   1 - 2	Open-latch	Below 1 Ω
   1 - 2	Half-latch	Below 1 Ω
   1 - 2	Full-latch	10 kΩ or higher
   1 - 2	Over-latch	10 kΩ or higher

Fig 1: Inspecting Back Door Lock Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE BACK DOOR LOCK ASSEMBLY 

OK: Go to next step 

w/o Power Back Door System

1. Disconnect the back door lock assembly connector.
2. Disconnect the instrument panel J/B 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
   B12-1 - B5-25 (BCTY)	Always	Below 1 Ω
   B12-2 - Body ground	Always	Below 1 Ω

Fig 2: Checking Wire Harness (Back Door Lock Assembly - Instrument Panel J/B (Body ECU))
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

1. Check the Data List to ensure proper function of the back door courtesy switch.

   BACK-DOOR (Power Back Door ECU): 

   DIAGNOSTIC NOTE
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Courtesy SW	Back door courtesy switch signal (built in power back door lock) /ON or OFF	ON: Driver side door is open OFF: Driver side door is closed	-

   OK: The display is as specified in the normal condition. 

NG: Go to step  6

OK: Go to next step 

w/ Power Back Door System

1. Disconnect the power back door ECU connector.
2. Disconnect the instrument panel J/B 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
   P13-19 (CTYO) - B5-25 (BCTY)	Always	Below 1 Ω

Fig 3: Checking Wire Harness (Power Back Door ECU - Instrument Panel J/B)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

w/ Power Back Door System

1. Remove the back door lock assembly.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance (Courtesy switch) 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Door Lock Latch Position	Specified Condition
   1 - 6	Open-latch	Below 1 Ω
   1 - 6	Half-latch	Below 1 Ω
   1 - 6	Full-latch	10 kΩ or higher
   1 - 6	Over-latch	10 kΩ or higher

Fig 4: Inspecting Back Door Lock Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE BACK DOOR LOCK ASSEMBLY 

OK: Go to next step 

w/ Power Back Door System

1. Disconnect the back door lock assembly connector.
2. Disconnect the power back door ECU 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
   B11-1 - P13-7(CTYE)	Always	Below 1 Ω
   B11-6 - Body ground	Always	Below 1 Ω

Fig 5: Checking Wire Harness (Back Door Lock Assembly - Power Back Door ECU)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE