Inspection Procedure

1. Connect the intelligent tester (with CAN VIM) to the DLC3.
2. Turn the ignition switch on.
3. Read the DATA LIST.

   D_SEAT (Position control ECU and switch assembly) 

   DATA LIST - D_SEAT (POSITION CONTROL ECU AND SWITCH ASSEMBLY)
   
   

   Item	Measurement Item/Range (Display)	Normal Condition	Diagnostic Note
   M2 SW	Seat memory M2 switch signal/ ON or OFF	ON: Seat memory M2 switch is ON OFF: Seat memory M2 switch is OFF	-
   M1 SW	Seat memory M1 switch signal/ ON or OFF	ON: Seat memory M1 switch is ON OFF: Seat memory M1 switch is OFF	-
   SET SW	Seat memory set switch signal/ ON or OFF	ON: Seat memory set switch is ON OFF: Seat memory set switch is OFF	-

   OK: Condition status can be displayed. 

NG : Go to step 2 

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

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

   Resistance 

   SEAT MEMORY SWITCH (DRIVING POSITION MEMORY SWITCH)
   
   

   Tester Connection	Switch Position	Specified Condition
   1(E) - 2(MMRY)	SET switch ON (pushed)	Below 1 Ω
   1(E) - 2(MMRY)	SET switch OFF (not pushed)	10 kΩ or higher
   1(E) - 4(1)	SW1 switch ON (pushed)	Below 1 Ω
   1(E) - 4(1)	SW1 switch OFF (not pushed)	10 kΩ or higher
   1(E) - 3(2)	SW2 switch ON (pushed)	Below 1 Ω
   1(E) - 3(2)	SW2 switch OFF (not pushed)	10 kΩ or higher

   Fig 1: Inspecting Seat Memory Switch (Driving Position Memory Switch)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPLACE SEAT MEMORY SWITCH (DRIVING POSITION MEMORY SWITCH) 

OK : Go to step. 

1. Measure the voltage according to the value(s) in the table below.

   Voltage 

   SEAT MEMORY SWITCH CIRCUIT
   
   

   Tester Connection	Switch Position	Specified Condition
   D15-2(MMRY) - D15-1(E)	Ignition switch on	10 to 14 V
   D15-3(2) - D15-1(E)	Ignition switch on	10 to 14 V
   D15-4(1) - D15-1(E)	Ignition switch on	10 to 14 V

   Fig 2: Checking Harness And Connector (Seat Memory Switch Circuit)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : GO to step 4 

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

1. Disconnect the power window regulator switch assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Resistance 

   POWER WINDOW REGULATOR SWITCH ASSEMBLY - SEAT MEMORY SWITCH
   
   

   Tester Connection	Switch Position	Specified Condition
   D15-1(E) - Body ground	Always	Below 1 Ω
   D15-2(MMRY) -P22-3(MM)	Always	Below 1 Ω
   D15-3(2) - P22-17(M2)	Always	Below 1 Ω
   D15-4(1) - P22-13(M1)	Always	Below 1 Ω
   D15-2(MMRY) - Body ground	Always	10 kΩ or higher
   D15-3(2) - Body ground	Always	10 kΩ or higher
   D15-4(1) - Body ground	Always	10 kΩ or higher

   Fig 3: Checking Harness And Connector (Power Window Regulator Switch Assembly - Seat Memory Switch)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (POWER WINDOW MASTER SWITCH)