THEFT DETERRENT SYSTEM Engine Hood Courtesy Switch Circuit

DESCRIPTION

• The engine hood courtesy switch is built into the hood lock. This switch turns on when the engine hood is opened and turns off when the engine hood is closed.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING INTELLIGENT TESTER (ENGINE HOOD COURTESY SWITCH)

   
   

   1. Using the intelligent tester, read the Data List.

      Entry&Start

      Tester Display	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
      Hood Courtesy Switch	Engine hood courtesy switch / ON or OFF	ON: Engine hood open OFF: Engine hood closed	-

      OK
      ON (engine hood is open) appears on screen.

   
   

   NG

   INSPECT HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH) Click here

   OK

   REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

2. INSPECT HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)

   

   Text in Illustration

   *1	Component without harness connected (Hood Lock Assembly)	*2	Unlock Position
   *3	Lock Position	-	-

   
   

   1. for LHD:

      
      

      1. Remove the hood lock Click here.

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

         Standard Resistance
         Tester Connection Condition Specified Condition 1 - 2 Unlock position Below 1 Ω 1 - 2 Lock position 10 kΩ or higher

      

      Text in Illustration

      *1	Component without harness connected (Hood Lock Assembly)	*2	Unlock Position
      *3	Lock Position	-	-

   2. for RHD:

      
      

      1. Remove the hood lock Click here.

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

         Standard Resistance
         Tester Connection Condition Specified Condition 2 - 4 Unlock position Below 1 Ω 2 - 4 Lock position 10 kΩ or higher

   
   

   NG

   REPLACE HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)

   OK

3. CHECK HARNESS AND CONNECTOR (HOOD LOCK - CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] AND BODY GROUND)

   
   
   1. 

      Text in Illustration

      *1	Front view of wire harness connector: (to Certification ECU (Smart Key ECU Assembly)
      *2	Front view of wire harness connector: (to Hood Lock)

      for LHD:

      
      

      1. Disconnect the E30 ECU connector.

      2. Disconnect the A8 switch connector.

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

         Standard Resistance
         Tester Connection Condition Specified Condition E30-24 (HSW) - A8-2 Always Below 1 Ω A8-1 - Body ground Always Below 1 Ω E30-24 (HSW) or A8-2 - Body ground Always 10 kΩ or higher

   2. 

      Text in Illustration

      *1	Front view of wire harness connector: (to Certification ECU (Smart Key ECU Assembly)
      *2	Front view of wire harness connector: (to Hood Lock)

      for RHD:

      
      

      1. Disconnect the E30 ECU connector.

      2. Disconnect the A54 switch connector.

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

         Standard Resistance
         Tester Connection Condition Specified Condition E30-24 (HSW) - A54-2 Always Below 1 Ω A54-4 - Body ground Always Below 1 Ω E30-24 (HSW) or A54-2 - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

   REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)