Inspection Procedure

1. Turn the engine switch off.
2. Disconnect the distance control ECU (K13).
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Value
   K13-8 (CANH) - K13-9 (CANL)	Engine switch off	54 to 69 Ω

Fig 1: Identifying Distance Control ECU (K13) Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE DISTANCE CONTROL ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

OK: Go to next step 

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

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Value
   K13-10 (SGND) - Body ground	Always	Below 1 Ω
   K13-12 (GND) - Body ground	Always	Below 1 Ω

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

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Value
   K13-1 (B) - Body ground	Engine switch on (IG)	10 to 14 V

Fig 2: Identifying Distance Control ECU (K13) Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE DISTANCE CONTROL ECU 

OK: REPAIR OR REPLACE HARNESS OR CONNECTOR