DTC B2289: Key Collation Waiting Time Over: Procedure

1. Clear 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.

C → See step   5 

B → See step   4 

A: Go to next step 

1. Disconnect the E36 ECU and 2C junction block connectors.
   Fig 1: Identifying E36 ECU & 2C Junction Block Connectors

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2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   2C-12 (LIN1) - E36-10 (LIN)	Always	Below 1 Ω
   2C-12 (LIN1) or E36-10 (LIN) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (MAIN BODY ECU - CERTIFICATION ECU) 

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 function) (Room Oscillator does not Recognized Key).

NG → See step   6 

OK → END (MAIN BODY ECU DEFECTIVE)