Inspection Procedure

HINT:

Start the inspection from step 1 when using the Techstream and start from step  2 when not using the Techstream.

1. READ VALUE ON TECHSTREAM (IGNITION SWITCH) 
   1. Connect the Techstream to the DLC3.
   2. Turn the ignition switch on (IG) and turn the Techstream main switch on.
   3. Select the items below in the "DATA LIST" and read the display on the Techstream.

      BODY: 

      DATA LIST
      
      

      Item	Measurement Item/Display (Range)	Normal Condition
      IG SW	Ignition switch on (IG)/ON or OFF	ON: Ignition switch on (IG) OFF: Ignition switch off or on (ACC)
      ACC SW	Ignition switch on (ACC)/ON or OFF	ON: Ignition switch on (ACC) OFF: Ignition switch not on (ACC)

      OK: 

      When the ignition switch is operated, the display changes as shown above. 

   NG: Go to step 2 

   OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

2. INSPECT MULTIPLEX NETWORK BODY ECU (IG - ACC TERMINALS) 
   1. Turn the ignition switch off.
   2. Disconnect the instrument panel J/B (II) connector.
   3. Measure the voltage according to the value(s) in the table below.
      Fig 1: Identifying Instrument Panel J/B Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Voltage 

      VOLTAGE SPECIFICATION
      
      

      Tester Connection	Condition	Specified Condition
      II-9 - Body ground	Ignition switch off	Below 1 V
      II-9 - Body ground	Ignition switch on (IG)	10 to 14 V
      II-3 - Body ground	Ignition switch off	Below 1 V
      II-3 - Body ground	Ignition switch on (ACC)	10 to 14 V

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (IG OR ACC CIRCUIT) 

   OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE