Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT CONVERTIBLE ROOF CONTROL SWITCH
NG: REPLACE CONVERTIBLE ROOF CONTROL SWITCH

OK: Go to Next Step

CHECK WIRE HARNESS (CONVERTIBLE CONTROL ECU - CONVERTIBLE SWITCH AND BODY GROUND)

Disconnect the C18 ECU connector.
Disconnect the S17 switch connector.

Measure the resistance of the wire harness side connectors.

Resistance

CONVERTIBLE CONTROL ECU - CONVERTIBLE SWITCH AND BODY GROUND

Tester Connection	Specified Condition
C18-1(TPU)-S17-3(CLS)	Below 1 Ω
C18-6 (TPD) - S17-5 (OPEN)	Below 1 Ω
S17-6 (E) - Body ground	Below 1 Ω
S17-3 (CLS) - Body ground	10 kΩ or higher
S17-5 (OPEN) - Body ground	10 kΩ or higher

Fig 1: Identifying C18 ECU Connector And S17 Switch Connector Terminals

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE CONVERTIBLE ROOF CONTROL ECU