Inspection Procedure

1. Drive the vehicle and check if the function of the speedometer in the combination meter is normal.

   OK: Actual vehicle speed and the speed indicated on the speedometer are the same. 

   HINT:

   The vehicle speed sensor is functioning normally when the indication on the speedometer is normal.

NG:  GO TO METER / GAUGE SYSTEM

OK: Go to Next Step 

1. Disconnect the N3 ECU connector.
2. Disconnect the C10 meter connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   STANDARD RESISTANCE REFERENCE CHART
   
   

   Tester Connection	Specified Condition
   N3-4 (SPD) - C10-13	Below 1 Ω
   N3-4 (SPD) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

Fig 1: Identifying N3 ECU Connector And C10 Meter Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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