Inspection Procedure

1. Select the Active Test, use the Techstream to generate a control command, and then check the power seat motor function.

   Driver Seat 

   DRIVER SEAT ACTIVE TEST REFERENCE CHART
   
   

   Tester Display	Test Part	Control Range
   Front Vertical Operation	Seat front vertical operation	UP/DOWN

   OK: Motor operates normally 

NG: Go to step  6

OK: Go to Next Step 

1. Disconnect the e46 switch connector.
2. Disconnect the e39 sensor connector.
3. Measure the resistance according to the values in the table below.

   Standard Resistance 

   RESISTANCE SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   e46-8 (PVCC) - e39-3 (VCC)	Always	Below 1 Ω
   e46-19 (SSFV) - e39-1 (O/P)	Always	Below 1 Ω
   e46-18 (SGND) - e39-2 (GND)	Always	Below 1 Ω
   e46-8 (PVCC) - Body ground	Always	10 kΩ or higher
   e46-19 (SSFV) - Body ground	Always	10 kΩ or higher
   e46-18 (SGND) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 1: Identifying e46 Power Seat Switch And e39 Sensor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Disconnect the e39 sensor connector.
2. Measure the voltage according to the values in the table below.

   Standard Voltage 

   VOLTAGE SPECIFIED CONDITIONS
   
   

   Tester Connection	Switch Condition	Specified Condition
   e39-3 (VCC) - e39-2 (GND)	Front vertical switch signal ON	7.2 to 8.8 V

NG: REPLACE FRONT POWER SEAT SWITCH LH  (See REMOVAL  )

Fig 2: Identifying e39 Position Control Sensor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Reconnect the e39 sensor connector.
2. Measure the voltage according to the value in the table below.

   Standard Voltage 

   VOLTAGE SPECIFIED CONDITIONS
   
   

   Tester Connection	Switch Condition	Specified Condition
   e39-1 (O/P) - Body ground	Front vertical switch signal ON	0 to 8V

NG: REPLACE FRONT SEAT ADJUSTER ASSEMBLY LH  (See REMOVAL  )

Fig 3: Identifying e39 Position Control Sensor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Clear the DTC (see DTC CHECK / CLEAR  ).
2. Recheck the DTC.

   OK: DTC B2652 is not output. 

NG: REPLACE FRONT POWER SEAT SWITCH LH  (See REMOVAL  )

OK: END (SYSTEM RETURNS TO NORMAL) 

1. Check operation of the power seat motor (front vertical motor).
   1. Check if the seat adjuster moves smoothly when the battery is connected to the slide motor connector terminals.

      OK 

      FRONT VERTICAL MOTOR OPERATION CHART
      
      

      Measurement Condition	Operational Direction
      Battery positive (+) → 1 Battery negative (-) → 2	Upward
      Battery positive (+) → 2 Battery negative (-) → 1	Downward

NG: REPLACE FRONT SEAT ADJUSTER ASSEMBLY LH  (See REMOVAL  )

Fig 4: Identifying Power Seat Motor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Disconnect the e45 and e46 switch connectors.
2. Disconnect the e38 motor connector.
3. Measure the resistance according to the values in the table below.

   Standard Resistance 

   RESISTANCE SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   e46-1 (FRV+) - e38-1	Always	Below 1 Ω
   e45-12 (FRV-) - e38-2	Always	Below 1 Ω

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   Fig 5: Identifying e45 And e46 Switch With e38 Motor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: REPLACE FRONT POWER SEAT SWITCH LH  (See REMOVAL  )