DESCRIPTION
When the position control ECU and switch assembly does not receive a sensor signal
despite forward or rearward movement of the seat by power seat motor operation,
this DTC is stored.
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DTC Code
|
DTC Detection Condition
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Trouble Area
|
|
B2650
|
The forward and rearward lock detection position of the sensor is the
same.
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- Position control ECU and switch assembly
- Front seat cushion frame sub-assembly LH (slide motor)
- Harness or connector
|
WIRING DIAGRAM
PROCEDURE
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1.
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PERFORM ACTIVE TEST USING TECHSTREAM (SEAT SLIDE OPERATION)
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(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Driver Seat / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Driver Seat
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Tester Display
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Test Part
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Control Range
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Diagnostic Note
|
|
Seat Slide Operation
|
Seat sliding operation
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Front / OFF / Rear
|
-
|
OK:
Motor operates normally.
| NG |
 |
GO TO STEP 5
|
| OK |
|
|
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2.
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CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY (SLIDE MOTOR CIRCUIT)
|
|
(a) Disconnect the front seat cushion frame sub-assembly LH (slide motor)
connector.
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection
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Switch Condition
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Specified Condition
|
|
Z3-5 - Z3-6
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Sliding switch on
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4.8 to 5.1 V
|
Text in Illustration
|
*a
|
Front view of wire harness connector
(to Front Seat Cushion Frame Sub-assembly LH [Slide Motor])
|
| NG |
|
GO TO STEP 4
|
| OK |
|
|
|
|
3.
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CHECK FRONT SEAT CUSHION FRAME SUB-ASSEMBLY LH (SLIDE MOTOR)
|
|
(a) Reconnect the front seat cushion frame sub-assembly LH (slide motor)
connector.
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection
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Switch Condition
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Specified Condition
|
|
Z3-5 - Body ground
|
Sliding switch on
|
4.5 to 4.8 V
|
Text in Illustration
|
*a
|
Component with harness connected
(Front Seat Cushion Frame Sub-assembly LH [Slide Motor])
|
| OK |
|
REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY
|
| NG |
|
REPLACE FRONT SEAT CUSHION FRAME SUB-ASSEMBLY LH
|
|
4.
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CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY
- FRONT SEAT CUSHION FRAME SUB-ASSEMBLY LH)
|
(a) Disconnect the Z10 position control ECU and switch assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
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Tester Connection
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Condition
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Specified Condition
|
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Z10-5 (SSRS) - Z3-5
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Always
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Below 1 Ω
|
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Z10-1 (SGND) - Z3-6
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Always
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Below 1 Ω
|
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Z10-5 (SSRS) or Z3-5 - Body ground
|
Always
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10 kΩ or higher
|
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Z10-1 (SGND) or Z3-6 - Body ground
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Always
|
10 kΩ or higher
|
| OK |
|
REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|
5.
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INSPECT FRONT SEAT CUSHION FRAME SUB-ASSEMBLY LH (SLIDE MOTOR)
|
(a) Remove the front seat cushion frame sub-assembly LH (slide Motor) (See page
 ).
(b) Inspect the front seat cushion frame sub-assembly LH (slide motor) (See page
).
| NG |
|
REPLACE FRONT SEAT CUSHION FRAME SUB-ASSEMBLY LH
|
| OK |
|
|
|
|
6.
|
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY
- FRONT SEAT CUSHION FRAME SUB-ASSEMBLY LH)
|
(a) Disconnect the Z9 position control ECU and switch assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
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Tester Connection
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Condition
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Specified Condition
|
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Z9-3 (SLD+) - Z3-4
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Always
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Below 1 Ω
|
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Z9-4 (SLD-) - Z3-3
|
Always
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Below 1 Ω
|
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Z9-3 (SLD+) or Z3-4 - Body ground
|
Always
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10 kΩ or higher
|
|
Z9-4 (SLD-) or Z3-3 - Body ground
|
Always
|
10 kΩ or higher
|
| OK |
|
REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
| 
