Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Turn the engine switch on (IG) and turn the intelligent tester main switch on.
3. Read the Data List according to the displays on the tester.

   HINT:

   When using the intelligent tester with the engine switch off, turn on and off any of the door courtesy light switches repeatedly at 1.5 second intervals or less until communication between the tester and vehicle starts.

   MAIN BODY: 

   DATA LIST (MAIN BODY)
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   IG2 RELAY M0N1	Status of IG2 relay monitor (outer) / ON or OFF	ON: Engine switch on (IG) (IG2 relay is ON) OFF: Engine switch off (IG2 relay is OFF)	-

   OK: "ON" (Engine switch on (IG)) appears on the screen. 

NG: Go to step  3

OK: Go to Next Step 

1. Check the power source mode change.
   1. When the key is inside the vehicle and the shift lever is in the P position, check that pressing the engine switch causes the power source mode to change as follows:

      OK: off → on (ACC) → on (IG) → off 

      HINT:

      • If power mode does not change to ON (IG and ACC), (See POWER SOURCE MODE DOES NOT CHANGE TO ON (IG AND ACC)  ).
      • If power mode does not change to ON (IG), (See POWER SOURCE MODE DOES NOT CHANGE TO ON (IG)  ).
      • If power mode does not change to ON (ACC), (See POWER SOURCE MODE DOES NOT CHANGE TO ON (ACC)  ).

NG: GO TO OTHER PROBLEM 

OK: Go to Next Step 

1. Remove the IG2 relay from the engine room R/B.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   3 - 5	10 kΩ or higher
   3 - 5	Below 1 Ω (when battery voltage is applied to terminals 1 and 2)

Fig 1: Identifying IG2 Relay Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE RELAY 

OK: Go to Next Step 

1. Remove the IG2 relay from the engine room R/B.
   Fig 2: Identifying IG2 Relay And Main Body ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the E60 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Terminal No. (Symbol)	Condition	Specified Condition
   Engine Room R/B IG2 relay terminal 1 - E60-11 (IG2D)	Always	Below 1 Ω
   Engine Room R/B IG2 relay terminal 2 - Body ground	Always	Below 1 Ω
   E60-11 (IG2D) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU