Inspection Procedure

HINT:

Pushing and holding the control switch for 2 minutes or more will prohibit the operation. However, this is not a malfunction.

1. READ VALUE OF INTELLIGENT TESTER (ROOF CONTROL SWITCH) 
   1. Check the DATA LIST for proper functioning of the roof control switch.

      Sliding roof control ECU 

      ITEM DIAGNOSTIC NOTE
      
      

      Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
      OPEN SW	Sliding roof open switch signal / ON or OFF	ON: Open switch is pushed OFF: Open switch is not pushed	-
      CLOSE SW	Sliding roof close switch signal / ON or OFF	ON: Close switch is pushed OFF: Close switch is not pushed	-

      OK: 

      On tester screen, each item changes between ON and OFF according to above chart. 

   OK: REPLACE SLIDING ROOF CONTROL ECU 

   NG: Go to next step 

2. CHECK WIRE HARNESS (ECU - AIR CONDITIONING CONTROL (ROOF CONTROL SWITCH)) 
   Fig 1: Checking Wire Harness (ECU - Air Conditioning Control (Roof Control Switch))

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Disconnect the S17 ECU connector.
   2. Disconnect the A10 control connector.
   3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART
      
      

      Tester Connection	Specified Condition
      S17-1 (OPEN) - A10-3	Below 1 Ω
      S17-7 (CLS) - A10-4	Below 1 Ω
      S17-18 (SWE) - A10-5	Below 1 Ω
      S17-1 (OPEN) - Body ground	10 kΩ or higher
      S17-7 (LCS) - Body ground	10 kΩ or higher
      S17-18 (SWE) - Body ground	10 kΩ or higher

   NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

   OK: Go to next step 

3. CHECK AIR CONDITIONING CONTROL ASSEMBLY (ROOF CONTROL SWITCH) 
   1. Remove the A/C control but do not disconnect the connectors (see REMOVAL ).
   2. Turn the ignition switch ON.
   3. Measure the voltage of the A/C control.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART
      
      

      Tester Connection	Switch Condition	Specified Condition
      A10-3 (OPEN) - A10-5 (SWE)	OPEN switch ON	7 to 9 V
      A10-4 (CLS) - A10-5 (SWE)	OPEN switch ON	Below 3.0 V
      A10-3 (OPEN) - A10-5 (SWE)	CLOSE switch ON	Below 3.0 V
      A10-4 (CLS) - A10-5 (SWE)	CLOSE switch ON	7 to 9 V

      Fig 2: Checking Air Conditioning Control Assembly (Roof Control Switch)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPLACE AIR CONDITIONING CONTROL ASSEMBLY 

   OK: REPLACE SLIDING ROOF CONTROL ECU