DTC Code | DTC Name |
---|---|
B2657 | Ottoman Sensor Malfunction |
DESCRIPTION
When the position control ECU assembly 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 |
---|---|---|
B2657 | The forward and backward lock detection position of the sensor is the same. |
|
WIRING DIAGRAM
PROCEDURE
PERFORM ACTIVE TEST USING GTS (OTTOMAN)
Turn the power switch off.
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Passenger Seat / Active Test.
Perform the Active Test according to the display on the GTS.
Tester Display | Test Part | Control Range | Diagnostic Note |
---|---|---|---|
Ottoman | Seat ottoman operation | Front / OFF / Rear | - |
OK |
---|
Motor operates normally. |
NG |
INSPECT FRONT SEAT ADJUSTER ASSEMBLY LH (OTTOMAN MOTOR) Click here |
OK |
CHECK POSITION CONTROL ECU ASSEMBLY (OTTOMAN MOTOR CIRCUIT)
*a | Front view of wire harness connector (to Front Seat Adjuster Assembly LH [Ottoman Motor]) |
Disconnect the ottoman motor connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY LH) Click here |
OK |
CHECK FRONT SEAT ADJUSTER ASSEMBLY LH (OTTOMAN MOTOR)
*a | Component with harness connected (Front Seat Adjuster Assembly LH [Ottoman Motor]) |
Reconnect the ottoman motor connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
OK |
REPLACE POSITION CONTROL ECU ASSEMBLY Click here |
NG |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY LH (OTTOMAN MOTOR) Click here |
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY LH)
Disconnect the d4 and d5 position control ECU assembly connectors.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
OK |
REPLACE POSITION CONTROL ECU ASSEMBLY Click here |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
INSPECT FRONT SEAT ADJUSTER ASSEMBLY LH (OTTOMAN MOTOR)
*a | Component without harness connected (Front Seat Adjuster Assembly LH [Ottoman Motor]) |
Disconnect the d35 ottoman motor connector.
Check if the ottoman motor moves smoothly when the battery is connected to the ottoman motor connector terminals.
OK | ||||||
---|---|---|---|---|---|---|
|
NG |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY LH (OTTOMAN MOTOR) Click here |
OK |
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY LH)
Disconnect the d4 and d5 position control ECU assembly connectors.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
OK |
REPLACE POSITION CONTROL ECU ASSEMBLY Click here |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |