Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Turn the engine switch on (IG) and press the intelligent tester main switch on.
3. Select the items below in the DATA LIST, and read the displays on the intelligent tester.

   MULTIPLEX NETWORK REAR ECU (LUGGAGE ROOM JUNCTION BLOCK): 

   DATA LIST - MULTIPLEX NETWORK REAR ECU (LUGGAGE ROOM JUNCTION BLOCK)
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   TAIL LGT Tr	Taillight Transistor / ON or OFF	ON: Light control switch TAIL or HEAD position OFF: Light control switch other than HEAD position	-
   STOP LIGHT Tr	Stop light Transistor / ON or BREAK	ON: Brake pedal depressed OFF: Brake pedal released	-
   H-M STOP LGT Tr	High mount stop light Transistor / ON or BREAK	ON: Brake pedal depressed BREAK: Brake pedal released	-
   LICENSE LGT Tr	License LGT Transistor / ON or BREAK	ON: Light control switch TAIL position BREAK: Light control switch other than HEAD position	-

   OK: 

   Condition sign can be displayed. 

NG: Go to step 2 

OK: NORMAL OPERATION, NOT A MALFUNCTION 

1. Check each circuit in the table below.
   SUSPECTED AREAS REFERENCE
   
   

   Suspected Area	See procedure
   Taillight	TAILLIGHT CIRCUIT
   Stop light	STOP LIGHT CIRCUIT
   Back-up light	BACK-UP LIGHT CIRCUIT

   OK: 

   Each light illuminates. 

OK: REPLACE MULTIPLEX NETWORK REAR ECU (LUGGAGE ROOM JUNCTION BLOCK ECU)