Seat. Dtc B2650 Slide Sensor Malfunction

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (POWER SEAT MOTOR FUNCTION)

CHECK FRONT POWER SEAT SWITCH (SLIDE MOTOR CIRCUIT)

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

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

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

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

DTC 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.

DTC Code	DTC Detection Condition	Trouble Area
B2650	The forward and backward lock detection position of the sensor is the same.	Front power seat switch Separate type front seat cushion spring assembly (Slide motor) Harness or connector

WIRING DIAGRAM

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Seat.Front Power Seat Control System (W/ Memory).
Dtc
B2650 Slide Sensor Malfunction

INSPECTION PROCEDURE

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

Select the Active Test, use the intelligent tester to generate a control command, and then check the power seat motor function (LandCruiser RM0000039RN030X.html).

Driver Seat
Tester Display
Test Part
Control Range
Diagnostic Note
Seat Slide Operation
Seat sliding operation
Front / OFF / Rear
-
OK:
Motor operates normally.

Driver Seat
Tester Display	Test Part	Control Range	Diagnostic Note
Seat Slide Operation	Seat sliding operation	Front / OFF / Rear	-

Go to step 5

OK

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

Disconnect the b1*1 or a1*2 motor connector.
1. *1: for LHD
2. *2: for RHD

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

Standard Voltage:
for LHD
Tester Connection
Switch Condition
Specified Condition
b1-2 (O/P) - b1-3 (GND)
Sliding switch on
4.8 to 5.1 V
for RHD
Tester Connection
Switch Condition
Specified Condition
a1-2 (O/P) - a1-3 (GND)
Sliding switch on
4.8 to 5.1 V
Text in Illustration
*A
for LHD
*B
for RHD
*a
Front view of wire harness connector
(to Separate Type Front Seat Cushion Spring Assembly [Slide Motor])

for LHD
Tester Connection	Switch Condition	Specified Condition
b1-2 (O/P) - b1-3 (GND)	Sliding switch on	4.8 to 5.1 V

for RHD
Tester Connection	Switch Condition	Specified Condition
a1-2 (O/P) - a1-3 (GND)	Sliding switch on	4.8 to 5.1 V

Go to step 4

OK

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

Connect the b1*1 or a1*2 motor connector.
1. *1: for LHD
2. *2: for RHD

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

Standard Voltage:
for LHD
Tester Connection
Switch Condition
Specified Condition
b1-2 (O/P) - Body ground
Sliding switch on
4.5 to 4.8 V
for RHD
Tester Connection
Switch Condition
Specified Condition
a1-2 (O/P) - Body ground
Sliding switch on
4.5 to 4.8 V
Text in Illustration
*A
for LHD
*B
for RHD
*a
Component with harness connected
(Separate Type Front Seat Cushion Spring Assembly [Slide Motor])

for LHD
Tester Connection	Switch Condition	Specified Condition
b1-2 (O/P) - Body ground	Sliding switch on	4.5 to 4.8 V

for RHD
Tester Connection	Switch Condition	Specified Condition
a1-2 (O/P) - Body ground	Sliding switch on	4.5 to 4.8 V

REPLACE SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY (SLIDE MOTOR) (LandCruiser RM000004673017X.html)

REPLACE FRONT POWER SEAT SWITCH (LandCruiser RM000004673017X.html)

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

*1: for LHD
*2: for RHD

Disconnect the b5*1 or a5*2 switch connector.

Disconnect the b1*1 or a1*2 motor connector.

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

Standard Resistance:

for LHD
Tester Connection	Condition	Specified Condition
b5-5 (SSRS) - b1-2 (O/P)	Always	Below 1 Ω
b5-1 (SGND) - b1-3 (GND)	Always	Below 1 Ω
b5-5 (SSRS) - Body ground	Always	10 kΩ or higher
b5-1 (SGND) - Body ground	Always	10 kΩ or higher

for RHD
Tester Connection	Condition	Specified Condition
a5-5 (SSRS) - a1-2 (O/P)	Always	Below 1 Ω
a5-1 (SGND) - a1-3 (GND)	Always	Below 1 Ω
a5-5 (SSRS) - Body ground	Always	10 kΩ or higher
a5-1 (SGND) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE FRONT POWER SEAT SWITCH (LandCruiser RM000004673017X.html)

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

Remove the separate type front seat cushion spring assembly (slide motor) (LandCruiser RM000003S3R00PX.html).

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

OK:

for LHD
Measurement Condition	Specified Condition
Battery positive (+) → 4 (FWD) Battery negative (-) → 1 (BACK)	Seat cushion spring moves forward
Battery positive (+) → 1 (BACK) Battery negative (-) → 4 (FWD)	Seat cushion spring moves backward

for RHD
Measurement Condition	Specified Condition
Battery positive (+) → 1 (FWD) Battery negative (-) → 4 (BACK)	Seat cushion spring moves forward
Battery positive (+) → 4 (BACK) Battery negative (-) → 1 (FWD)	Seat cushion spring moves backward

Text in Illustration
*A	for LHD
*B	for RHD

REPLACE SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY (SLIDE MOTOR) (LandCruiser RM000004673017X.html)

OK

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

*1: for LHD
*2: for RHD

Disconnect the b4*1 or a4*2 switch connector.

Disconnect the b1*1 or a1*2 motor connector.

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

Standard Resistance:

for LHD
Tester Connection	Condition	Specified Condition
b4-3 (SLD+) - b1-4 (FWD)	Always	Below 1 Ω
b4-4 (SLD-) - b1-1 (BACK)	Always	Below 1 Ω
b4-3 (SLD+) - Body ground	Always	10 kΩ or higher
b4-4 (SLD-) - Body ground	Always	10 kΩ or higher

for RHD
Tester Connection	Condition	Specified Condition
a4-3 (SLD+) - a1-1 (FWD)	Always	Below 1 Ω
a4-4 (SLD-) - a1-4 (BACK)	Always	Below 1 Ω
a4-3 (SLD+) - Body ground	Always	10 kΩ or higher
a4-4 (SLD-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE FRONT POWER SEAT SWITCH (LandCruiser RM000004673017X.html)

*A	for LHD
*B	for RHD
*a	Front view of wire harness connector (to Separate Type Front Seat Cushion Spring Assembly [Slide Motor])

*A	for LHD
*B	for RHD
*a	Component with harness connected (Separate Type Front Seat Cushion Spring Assembly [Slide Motor])