Back Door Entry Unlock Function does not Operate [09/2013 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. By following the Techstream screen display, check whether any DTCs are output.

   OK

   DTC is not output.

NG → Go to CORRESPONDING SYSTEM 

OK: Go to next step 

1. Check that the power door lock functions operate normally. Refer to OPERATION CHECK [09/2013 - ] .

   OK

   All doors can be unlocked with door control switch.

NG → See step   12 

OK: Go to next step 

1. Check that the wireless door lock functions operate normally. Refer to OPERATION CHECK [09/2013 - ] .

   OK

   Wireless door lock functions operate normally.

NG → See step   13 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Data List.
5. Read the Data List according to the display on the Techstream.
   MAIN BODY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Back Door Courtesy SW	Back door courtesy light switch signal / ON or OFF	ON: Back door is open OFF: Back door is closed	-

   OK

   On Techstream screen, item changes between ON and OFF according to above chart.

NG → See step   14 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Smart Key / Active Test.
5. According to the display on the Techstream, perform the Active Test.
   SMART KEY
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Back Door Select	Back door electrical key oscillator	ON or OFF	-

   OK

   ON (Back Door Select is ON) appears on screen.

NG → See step   15 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Smart Key / Data List.
5. Read the Data List according to the display on the Techstream.
   SMART KEY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   B-Door Touch Sensor	Back door touch sensor / ON or OFF	ON: Sensor is touched OFF: Sensor is not touched	-

   OK

   When back door sensor is set to ON, ON (sensor is touched) appears on screen.

NG → See step   8 

OK: Go to next step 

1. Temporarily replace the certification ECU (ECU aggregation box assembly) with a new or normally functioning one.
2. Check that the entry back door unlock function operates normally.

   OK

   Entry back door unlock function operates normally.

NG → REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) 

OK → END (CERTIFICATION ECU [ECU AGGREGATION BOX ASSEMBLY] WAS DEFECTIVE) 

1. Connect the Techstream to the DLC3.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Smart Key / Active Test / Back Door Select.
5. Operate the certification ECU (ECU aggregation box assembly) using the Active Test function and measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   37 (SEL9) - Body ground	During Active Test	Below 1 V
   26 (SEN9) - Body ground	Touch sensor is touched during Active Test	Below 1 V
   	Touch sensor is not touched during Active Test	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Certification ECU [ECU Aggregation Box Assembly])

NG → See step   9 

OK → See step   15 

1. Disconnect the Q11 back door electrical key oscillator connector.
2. Disconnect the Q12 electrical key antenna connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Q11-2 (SGT) - Q12-6 (SGT)	Always	Below 1 Ω
   Q11-3 (ANT1) - Q12-5 (ANT1)
   Q11-8 (ANT2) - Q12-2 (ANT2)
   Q11-9 (TRG-) - Q12-1 (TRG-)
   Q11-2 (SGT) - Body ground	Always	10 kΩ or higher
   Q11-3 (ANT1) - Body ground
   Q11-8 (ANT2) - Body ground
   Q11-9 (TRG-) - Body ground

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the E84 certification ECU (ECU aggregation box assembly) connector.
2. Disconnect the Q11 back door electrical key oscillator connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E84-37 (SEL9) - Q11-4 (SEL)	Always	Below 1 Ω
   E84-26 (SEN9) - Q11-6 (SENS)
   E84-31 (CLG9) - Q11-10 (CLG)
   E84-32 (CG9B) - Q11-5 (CLGB)
   E84-37 (SEL9) - Body ground	Always	10 kΩ or higher
   E84-26 (SEN9) - Body ground
   E84-31 (CLG9) - Body ground
   E84-32 (CG9B) - Body ground

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   11