Inspection Procedure

1. Connect the Techstream to the DLC3
2. Turn the engine switch on (IG)
3. Check for DTCs
4. Proceed to next step based on the inspection result

   Result 

   RESULT REFERENCE
   
   

   Inspection Result	Proceed to
   DTC B2289 only	A
   DTC B2287 is output	B
   Engine immobilizer system DTCs are output	C

B: GO TO OTHER FLOWCHART (DTC B2287)  (See DTC B2287 LIN COMMUNICATION MASTER MALFUNCTION  )

C: GO TO ENGINE IMMOBILIZER SYSTEM  (See DIAGNOSTIC TROUBLE CODE CHART  )

A: Go to next Step 

1. Remove the battery of the electrical key transmitter (See REMOVAL )
2. Touch the logo side mark of the key to the engine switch
3. Check that the engine switch can be turned on (IG)

   OK: Power source mode is turned on 

Fig 1: Identifying Engine Switch And Key Distance
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (ROOM OSCILLATOR DOES NOT RECOGNIZE KEY)  (See ROOM OSCILLATOR DOES NOT RECOGNIZE KEY  )

OK: Go to next Step 

1. Disconnect the J55 connector from power source control ECU.
2. Disconnect the P33 connector from the certification ECU (smart key ECU assembly).
3. Measure the resistance according to the value (s) in the table below.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   J55-30 (LIN1) - P33-10 (LIN)	Always	Below 1 Ω
   J55-30 (LIN1) or P33-10 (LIN) - Body ground	Always	10 kΩ or higher

Fig 2: Identifying P33 And J55 Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CONTROL ECU - CERTIFICATION ECU) 

OK: Go to next Step 

1. Replace the power source control ECU

1. Clear the DTC (See DIAGNOSIS SYSTEM  )
2. Check for DTC B2289 (key Collation Waiting Time Over).

   OK: DTC B2289 (Key Collation Waiting Time Over) is not output. 

NG: REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)  (See REMOVAL  )

OK: END (POWER SOURCE CONTROL ECU IS DEFECTIVE)