Inspection Procedure

1. DTC output area check
   1. Using the Techstream, determine the area that output the DTC.

      Result 

      RESULT CHART
      
      

      Result	Proceed to
      B2650 output from driver seat ECU	A
      B2650 output from passenger seat ECU	B

B: Go to step  9

A: Go to Next Step 

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

   Driver Seat 

   CONNECTOR TERMINALS VOLTAGE SPECIFIED CONDITION
   
   

   Tester Display	Test Part	Control Range
   Seat Slide Operation	Seat sliding operation	FRONT/REAR

   OK: Motor operates normally 

NG: Go to step  7

OK: Go to Next Step 

1. Disconnect the e46 switch connector.
2. Disconnect the e36 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) - e36-3 (VCC)	Always	Below 1 Ω
   e46-23 (SSRS) - e36-1 (O/P)	Always	Below 1 Ω
   e46-18 (SGND) - e36-2 (GND)	Always	Below 1 Ω
   e46-8 (PVCC) - Body ground	Always	10 kΩ or higher
   e46-23 (SSRS) - 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 Switch And e36 Sensor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Disconnect the e36 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
   e36-3 (VCC) - e36-2 (GND)	Sliding switch signal ON	7.2 to 8.8 V

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

Fig 2: Identifying e36 Position Control Sensor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Reconnect the e36 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
   e36-1 (O/P) - Body ground	Sliding switch signal ON	0 to 8V

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

Fig 3: Identifying e36 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 B2650 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 (slide motor).
   1. Check if the seat adjuster moves smoothly when the battery is connected to the slide motor connector terminals.

      OK 

      SLIDE MOTOR OPERATION REFERENCE CHART
      
      

      Measurement Condition	Operational Direction
      Battery positive (+) → 2 Battery negative (-) → 1	Forward
      Battery positive (+) → 1 Battery negative (-) → 2	Backward

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 e46 switch connector.
2. Disconnect the e37 motor connector.
3. Measure the resistance according to the values in the table below.

   Standard Resistance 

   RESISTANCE SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   e46-12 (SLD+) - e37-2	Always	Below 1 Ω
   e46-11 (SLD-) - e37-1	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 5: Identifying e46 Power Seat Switch And e37 Motor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

   Passenger Seat 

   PASSENGER SEAT ACTIVE TEST REFERENCE CHART
   
   

   Tester Display	Test Part	Control Range
   Seat Slide Operation	Seat sliding operation	FRONT/REAR

   OK: Motor operates normally 

NG: Go to step  14

OK: Go to Next Step 

1. Disconnect the e20 switch connector.
2. Disconnect the e5 sensor connector.
3. Measure the resistance according to the values in the table below.

   Standard Resistance 

   RESISTANCE SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   e20-8 (PVCC) - e5-3 (VCC)	Always	Below 1 Ω
   e20-23 (SSRS) - e5-1 (O/ P)	Always	Below 1 Ω
   e20-18 (SGND) - e5-2 (GND)	Always	Below 1 Ω
   e20-8 (PVCC) - Body ground	Always	10 kΩ or higher
   e20-23 (SSRS) - Body ground	Always	10 kΩ or higher
   e20-18 (SGND) - Body ground	Always	10 kΩ or higher

   Fig 6: Identifying e20 Power Seat Switch And e5 Sensor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

1. Disconnect the e5 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
   e5-3 (VCC) - e5-2 (GND)	Sliding switch signal ON	7.2 to 8.8 V

   Fig 7: Identifying e5 Position Control Sensor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

OK: Go to Next Step 

1. Reconnect the e5 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
   e5-1 (O/P) - Body ground	Sliding switch signal ON	0 to 8V

   Fig 8: Identifying e5 Position Control Sensor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

OK: Go to Next Step 

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

   OK: DTC B2650 is not output. 

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

OK: END (SYSTEM RETURNS TO NORMAL) 

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

      OK 

      SLIDE MOTOR OPERATION CHART
      
      

      Measurement Condition	Operational Direction
      Battery positive (+) → 1 Battery negative (-) → 2	Forward
      Battery positive (+) → 2 Battery negative (-) → 1	Backward

      Fig 9: Identifying Power Seat Motor Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

OK: Go to Next Step 

1. Disconnect the e20 switch connector.
2. Disconnect the e6 motor connector.
3. Measure the resistance according to the values in the table below.

   Standard Resistance 

   RESISTANCE SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   e20-12 (SLD+) - e6-2	Always	Below 1 Ω
   e20-11 (SLD-) - e6-1	Always	Below 1 Ω

   Fig 10: Identifying e20 Power Seat Switch And e6 Motor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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