Inspection Procedure

1. Disconnect the cruise control ECU (distance control ECU) connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard: 

   CRUISE CONTROL ECU TERMINALS VOLTAGE SPECIFICATION
   
   

   Tester connection	Condition	Specified value
   D2-1 (+B) - Body ground	Ignition SW ON	10 to 14V

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

   Standard: 

   CRUISE CONTROL ECU TERMINALS RESISTANCE SPECIFICATION
   
   

   Tester connection	Condition	Specified Value
   D2-10 (SGND) - Body ground	Always	Below 1 Ω
   D2-12 (GND) - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 

Fig 1: Disconnecting Cruise Control ECU (Distance Control ECU) Connector

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE