Bus Buffer ECU Communication Stop Mode [04/2013 - 10/2016]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.
2. Disconnect the K47 option connector (bus buffer ECU).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Option Connector (Bus Buffer ECU))

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K47-16 (CA1H) - K47-15 (CA1L)	Cable disconnected from negative (-) battery terminal	54 to 69 Ω

   Result

   Result
   OK
   NG

Result: 

OK 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

NG 

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (OPTION CONNECTOR (BUS BUFFER ECU))