Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

CHECK OPERATION OF SPEEDOMETER
1. Drive the vehicle and check if operation of the speedometer in the combination meter is normal.
  OK: Speedometer display is normal.
  
  HINT:
  
  The vehicle speed sensor is operating normally if the speedometer display is normal.
NG: GO TO COMBINATION METER

OK: GO TO NEXT STEP

CHECK WIRE HARNESS (CONVERTIBLE ROOF CONTROL ECU - COMBINATION METER)

Disconnect the C18 ECU connector.
Disconnect the C7 meter connector.

Fig 1: Identifying C7 Meter Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance of the wire harness side connectors.

Resistance

RESISTANCE SPECIFIED CONDITION

Tester Connection	Specified Condition
C18-2 (SPD) - C7-36	Below 1 Ω
C18-2 (SPD) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE CONVERTIBLE ROOF CONTROL ECU