DTC B2289: Key Collation Waiting Time Over: Procedure

1. Delete the DTCs. Refer to DTC CHECK / CLEAR .
2. Check for DTC B2289 (Key collection waiting time over) and B2785 (Communication malfunction between ECUs connected by LIN).

   Result

   Display (DTC output)	Proceed to
   "DTC B2289" only	A
   "DTC B2785" only	B
   No DTC	C

   HINT: 

   If DTC B2785 is output, perform troubleshooting for DTC B2785 first.

B → See step   4 

C → See step   5 

A: Go to next step 

1. Disconnect the D40 and 1E ECU connectors.
   Fig 1: Checking Harness And Connector (Main Body ECU - Certification ECU)

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

   Standard resistance

   Tester Connection	Condition	Specified Condition
   1E-7 (LIN1) - D40-10 (LIN)	Always	Below 1 Ω
   1E-7 (LIN1) or D40-10 (LIN) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. After replacing the main body ECU (instrument panel junction block) with a normally functioning ECU, check that the engine starts.

   OK

   Engine starts normally.

   HINT: 

   If the engine does not start, refer to PROBLEM SYMPTOMS TABLE of the smart key system (entry) (Room Oscillator does not Recognize Key).

NG → See step   6 

OK → END (MAIN BODY ECU DEFECTIVE)