While Alarm is Armed, Luggage Door or Hood is opened but Alarm does not Sound [06/2015 - ]: Procedure

1. Close all doors, the luggage compartment door and hood.
2. Lock the doors using the key link operation, wireless operation or entry operation.
3. Check that the security indicator light illuminates.
4. After 30 seconds have elapsed, check that the security indicator light changes from illuminated to flashing.

   HINT: 

   The illumination status of the security indicator light can be used to determine whether the theft deterrent system is set or unset.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO THEFT DETERRENT SYSTEM CANNOT BE SET OR UNSET. Refer to  Theft Deterrent System cannot be Set or Unset [06/2015 - ]  

Result: 

OK 

See step  2

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.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Hood Courtesy SW	Hood courtesy switch	ON or OFF	ON: Hood open OFF: Hood closed	-

   Body Electrical > Main Body > Data List 

   Tester Display
   Hood Courtesy SW

   OK

   The Techstream display changes correctly in response to the hood courtesy switch (hood lock assembly) status.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [06/2015 - 11/2018]  , or refer to  REMOVAL [11/2018 - ] 

Result: 

NG 

See step  3

1. Remove the hood lock assembly.

   Refer to REMOVAL [06/2015 - ]

2. Inspect the hood lock assembly.

   Refer to INSPECTION [06/2015 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HOOD LOCK ASSEMBLY. Refer to  REMOVAL [06/2015 - ] 

Result: 

OK 

See step  4

1. Disconnect the A37 hood lock assembly connector.
2. Disconnect the G6 main body ECU (multiplex network body ECU) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A37-1 - G6-11 (HCTY)	Always	Below 1 Ω
   A37-2 - Body ground	Always	Below 1 Ω
   A37-1 or G6-11 (HCTY) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

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.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Luggage Courtesy SW	Luggage compartment door courtesy switch	ON or OFF	ON: Luggage compartment door open OFF: Luggage compartment door closed	-

   Body Electrical > Main Body > Data List 

   Tester Display
   Luggage Courtesy SW

   OK

   The Techstream display changes correctly in response to the luggage compartment door courtesy switch status.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [06/2015 - 11/2018]  , or refer to  REMOVAL [11/2018 - ] 

Result: 

NG 

See step  6

1. Remove the luggage compartment door lock assembly.

   Refer to REMOVAL [06/2015 - ]

2. Inspect the luggage compartment door lock assembly.

   Refer to INSPECTION [06/2015 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY. Refer to  REMOVAL [06/2015 - ] 

Result: 

OK 

See step  7

1. Disconnect the P27 luggage compartment door lock assembly connector.
2. Disconnect the 4D instrument panel junction block assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   P27-3 (D+) - 4D-16	Always	Below 1 Ω
   P27-2 (E) - Body ground	Always	Below 1 Ω
   P27-3 (D+) or 4D-16 - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  8

1. Remove the instrument panel junction block assembly.

   Refer to REMOVAL [06/2015 - 11/2018] , or refer to REMOVAL [11/2018 - ]

2. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Component without harness connected (Instrument Panel Junction Block Assembly)

   -

   -

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   MB-4 (LGCY) - 4D-16	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [06/2015 - 11/2018]  , or refer to  REMOVAL [11/2018 - ] 

Result: 

NG 

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to  REMOVAL [06/2015 - 11/2018]  , or refer to  REMOVAL [11/2018 - ]