Inspection Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on
4. Enter the following menus: Body Electrical / Passenger Seat / Data List.
5. Read the Data List according to the display on the Techstream.

   Passenger Seat 

   DATA LIST REFERENCE
   
   

   Tester Display	Measurement Item / Range	Normal Condition	Diagnostic Note
   M3 Switch	M3 switch signal / ON or OFF	ON: M3 switch is ON OFF: M3 switch is OFF	-
   M2 Switch	M2 switch signal / ON or OFF	ON: M2 switch is ON OFF: M2 switch is OFF	-
   M1 Switch	M1 switch signal / ON or OFF	ON: M1 switch is ON OFF: M1 switch is OFF	-
   SET Switch	SET switch signal / ON or OFF	ON: SET switch is ON OFF: SET switch is OFF	-

   OK: On the Techstream screen, each item changes between ON and OFF according to the above chart. 

NG: Go to step 2 

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

1. Remove the seat memory switch RH (See REMOVAL  ).
2. Measure the resistance according to the value(s) in the table below

   Standard Resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   L7-1 (MMRY) - L7-5 (E)	SET switch is pressed	Below 1 Ω
   L7-2 (1) - L7-5 (E)	M1 switch is pressed	Below 1 Ω
   L7-3 (2) - L7-5 (E)	M2 switch is pressed	Below 1 Ω
   L7-4 (3) - L7-5 (E)	M3 switch is pressed	Below 1 Ω
   L7-1 (MMRY) - L7-5 (E)	SET switch is not pressed	10 kΩ or higher
   L7-2 (1) - L7-5 (E)	M1 switch is not pressed	10 kΩ or higher
   L7-3 (2) - L7-5 (E)	M2 switch is not pressed	10 kΩ or higher
   L7-4 (3) - L7-5 (E)	SET switch is not pressed	10 kΩ or higher

   Fig 1: Identifying Seat Memory Switch RH

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SEAT MEMORY SWITCH RH  (See REMOVAL  )

OK: Go to next step 

1. Disconnect the outer mirror control ECU RH connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   L10-22 (M1) - L7-2 (1)	Always	Below 1 Ω
   L10-23 (M2) - L7-3 (2)	Always	Below 1 Ω
   L10-24 (M3) - L7-4 (3)	Always	Below 1 Ω
   L10-25 (MM) - L7-1 (MMRY)	Always	Below 1 Ω
   L10-26 (MSWE) - L7-5 (E)	Always	Below 1 Ω
   L10-22 (M1) - L7-2 (1)	Always	10 kΩ or higher
   L10-23 (M2) - L7-3 (2)	Always	10 kΩ or higher
   L10-25 (MM) - L7-1 (MMRY)	Always	10 kΩ or higher
   L10-26 (MSWE) - L7-5 (E)	Always	10 kΩ or higher
   L10-26 (MSWE) - Body ground	Always	10 kΩ or higher

Fig 2: Identifying Outer Mirror Control ECU RH Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE OUTER MIRROR CONTROL ECU RH  (See OUTER MIRROR CONTROL ECU )