B2650

SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): B2650: Slide Sensor Malfunction
B2650 - Slide Sensor Malfunction

DESCRIPTION

When the front power seat switch does not receive a sensor signal despite forward or backward movement of the seat by power seat motor operation, this DTC is stored.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (POWER SEAT MOTOR FUNCTION)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Driver Seat / Active Test.

(e) According to the display on the Techstream, perform the Active Test.

Driver Seat





OK:

Motor operates normally.

NG -- INSPECT SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY LH (SLIDE MOTOR)
OK -- Continue to next step.

2. CHECK FRONT POWER SEAT SWITCH LH (SLIDE MOTOR CIRCUIT)

(a) Disconnect the Y12 slide motor connector.





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

Standard Voltage:





Text in Illustration





(c) Reconnect the slide motor connector.

NG -- CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH - SLIDE MOTOR)
OK -- Continue to next step.

3. CHECK SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY LH (SLIDE MOTOR)

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





Standard Voltage:





Text in Illustration





NG -- REPLACE SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY LH Disassembly

OK -- REPLACE FRONT POWER SEAT SWITCH LH Disassembly

4. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH - SLIDE MOTOR)

(a) Disconnect the Y9 front power seat switch LH connector.

(b) Disconnect the Y12 slide motor connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(d) Reconnect the slide motor connector.

(e) Reconnect the front power seat switch LH connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE FRONT POWER SEAT SWITCH LH Disassembly

5. INSPECT SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY LH (SLIDE MOTOR)

(a) Remove the separate type front seat cushion spring assembly LH (slide motor) Disassembly.





(b) Check if the seat cushion spring moves smoothly when the battery is connected to the slide motor connector terminals.

OK:





Text in Illustration





(c) Reinstall the separate type front seat cushion spring assembly LH (slide motor).

NG -- REPLACE SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY LH Disassembly
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH - SLIDE MOTOR)

(a) Disconnect the Y8 front power seat switch LH connector.

(b) Disconnect the Y12 slide motor connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(d) Reconnect the slide motor connector.

(e) Reconnect the front power seat switch LH connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE FRONT POWER SEAT SWITCH LH Disassembly