Engine Hood Courtesy Switch Circuit [11/2023 - ]: Procedure

1. Read the Data List according to the display on the GTS.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Hood Courtesy Switch Status	Engine hood courtesy switch	Close or Open	Close: Engine hood closed Open: Engine hood open	-

   OK

   The GTS display changes correctly in response to the hood lock assembly status.

   Body Electrical > Main Body > Data List 

   Tester Display
   Hood Courtesy Switch Status

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2023 - ]  

Result: 

NG 

See step  2

Refer to INSPECTION [12/2019 - ]

Result

Result: 

NG 

REPLACE HOOD LOCK ASSEMBLY. Refer to  REMOVAL [09/2020 - ] 

Result: 

OK 

See step  3

1. Disconnect the H135 main body ECU (multiplex network body ECU) connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A21-1 (+) - H135-27 (HCTY)	Always	Below 1 Ω
   A21-1 (+) or H135-27 (HCTY) - Other terminals and body ground	Always	10 kΩ or higher
   A21-2 (E) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [11/2023 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR