THEFT DETERRENT SYSTEM (w/ Entry and Start 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 is open OFF: Engine hood is 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)

   

   
   

   1. for Hood Courtesy Switch Connector 2 Pin Type (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 10 kΩ or higher 1 - 2 Lock position Below 1 Ω

      

   2. for Hood Courtesy Switch Connector 2 Pin Type (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 1 - 2 Unlock position 10 kΩ or higher 1 - 2 Lock position Below 1 Ω

      

   3. for Hood Courtesy Switch Connector 4 Pin Type:

      
      

      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 10 kΩ or higher 2 - 4 Lock position Below 1 Ω

   
   

   NG

   REPLACE HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)

   OK

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

   

   
   

   1. 

      for Hood Courtesy Switch Connector 2 Pin Type:

      
      

      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. for Hood Courtesy Switch Connector 4 Pin Type:

      
      

      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 A8-4 - Body ground Always Below 1 Ω E30-24 (HSW) or A8-2 - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

   REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)