Theft Deterrent System Ig Power Source Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK BASIC FUNCTION (ENTRY AND START FUNCTION)

INSPECT FUSE (AM2, ECU-IG RH)

CHECK WIRE HARNESS (COWL SIDE JUNCTION BLOCK RH - BATTERY)

CHECK COWL SIDE JUNCTION BLOCK RH

CHECK WIRE HARNESS (COWL SIDE JUNCTION BLOCK RH - BODY GROUND)

CHECK WIRE HARNESS (COWL SIDE JUNCTION BLOCK RH - POWER SOURCE CONTROL ECU)

DESCRIPTION

1. When the engine switch is turned on (IG), positive (+) battery voltage is applied to the cowl side junction block RH (multiplex network body ECU).
   

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Check that the basic function of the entry and start system operates normally.
   

   OK:

   Basic function operates normally.
   

1. Remove the AM2 and ECU-IG RH fuses from the cowl side junction block.
   

2. Measure the resistance of the fuses.
   

   Standard resistance:

   Below 1 Ω
   

1. Disconnect the DM junction block connector.
   

2. Measure the voltage of the wire harness side connector.
   

   Standard voltage:

   Tester Connection	Specified Condition
   DM-1 - Body ground	10 to 14 V

1. Measure the voltage between the terminal of the connector and body ground.
   

   Standard voltage:

   Tester Connection	Specified Condition
   DD-4 - Body ground	10 to 14 V

1. Disconnect the DD junction block connector.
   

2. Measure the resistance of the wire harness side connector.
   

   Standard resistance:

   Tester Connection	Specified Condition
   DD-7 - Body ground	Below 1 Ω

1. Disconnect the DD junction block connector.
   

2. Disconnect the L73 ECU connector.
   

3. Measure the resistance of the wire harness side connectors.
   

   Standard resistance:

   Tester Connection	Specified Condition
   DD-4 - L73-33 (AM1)	Below 1 Ω
   DD-6 - L73-34 (IG1D)	Below 1 Ω
   DD-4 or L73-33 (AM1) - Body ground	10 kΩ or higher
   DD-6 or L73-34 (IG1D) - Body ground	10 kΩ or higher