DTC Code | DTC Name |
---|---|
B2653 | Lifter Sensor Malfunction |
DESCRIPTION
*1: for Driver Side (Standard Seat Type)
*2: for Driver Side (Sports Seat Type, Luxury Seat Type)
*3: for Front Passenger Side (Luxury Seat Type)
When the power seat switch assembly*1 or position control ECU assembly*2, *3 does not receive a sensor signal despite upward or downward movement of the seat by power seat motor operation, this DTC is stored.
DTC Code | DTC Detection Condition | Trouble Area |
---|---|---|
B2653 | The upward and downward lock detection position of the sensor is the same. |
|
WIRING DIAGRAM
for Driver Side (Standard Seat Type):
for Driver Side (Sports Seat Type, Luxury Seat Type):
for Front Passenger Side (Luxury Seat Type):
PROCEDURE
CHECK FOR DTC
Check the parts which the DTCs have been output from Click here.
Result | Proceed to |
---|---|
DTC output from "Driver Seat" | A |
DTC output from "Passenger Seat" | B |
B |
PERFORM ACTIVE TEST USING GTS (LIFTER OPERATION) Click here |
A |
PERFORM ACTIVE TEST USING GTS (LIFTER OPERATION)
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 / Driver Seat / Active Test.
Perform the Active Test according to the display on the GTS.
Tester Display | Test Part | Control Range | Diagnostic Note |
---|---|---|---|
Lifter Operation | Seat lifter operation | Up / OFF / Down | - |
OK |
---|
Motor operates normally. |
Result | Proceed to |
---|---|
OK (for Standard Seat Type) | A |
OK (for Sports Seat Type, Luxury Seat Type) | B |
NG | C |
B |
CHECK POSITION CONTROL ECU ASSEMBLY (LIFTER MOTOR CIRCUIT) Click here |
C |
INSPECT FRONT SEAT ADJUSTER ASSEMBLY RH (LIFTER MOTOR) Click here |
A |
CHECK POWER SEAT SWITCH ASSEMBLY (LIFTER MOTOR CIRCUIT)
*a | Front view of wire harness connector (to Front Seat Adjuster Assembly RH [Lifter Motor]) |
Disconnect the lifter motor connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
CHECK HARNESS AND CONNECTOR (POWER SEAT SWITCH ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY RH) Click here |
OK |
CHECK FRONT SEAT ADJUSTER ASSEMBLY RH (LIFTER MOTOR)
*a | Component with harness connected (Front Seat Adjuster Assembly RH [Lifter Motor]) |
Reconnect the lifter motor connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
OK |
REPLACE POWER SEAT SWITCH ASSEMBLY Click here |
NG |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH (LIFTER MOTOR) Click here |
CHECK HARNESS AND CONNECTOR (POWER SEAT SWITCH ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY RH)
Disconnect the c15 power seat switch assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
OK |
REPLACE POWER SEAT SWITCH ASSEMBLY Click here |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
CHECK POSITION CONTROL ECU ASSEMBLY (LIFTER MOTOR CIRCUIT)
*a | Front view of wire harness connector (to Front Seat Adjuster Assembly RH [Lifter Motor]) |
Disconnect the lifter 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 RH) Click here |
OK |
CHECK FRONT SEAT ADJUSTER ASSEMBLY RH (LIFTER MOTOR)
*a | Component with harness connected (Front Seat Adjuster Assembly RH [Lifter Motor]) |
Reconnect the lifter motor connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
Result | Proceed to |
---|---|
OK (for Sports Seat Type) | A |
OK (for Luxury Seat Type) | B |
NG (for Sports Seat Type) | C |
NG (for Luxury Seat Type) | D |
A |
REPLACE POSITION CONTROL ECU ASSEMBLY Click here |
B |
REPLACE POSITION CONTROL ECU ASSEMBLY Click here |
C |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH (LIFTER MOTOR) Click here |
D |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH (LIFTER MOTOR) Click here |
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY RH)
Disconnect the c2 and c3 position control ECU assembly connectors.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Result | Proceed to |
---|---|
OK (for Sports Seat Type) | A |
OK (for Luxury Seat Type) | B |
NG | C |
A |
REPLACE POSITION CONTROL ECU ASSEMBLY Click here |
B |
REPLACE POSITION CONTROL ECU ASSEMBLY Click here |
C |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
INSPECT FRONT SEAT ADJUSTER ASSEMBLY RH (LIFTER MOTOR)
*a | Component without harness connected (Front Seat Adjuster Assembly RH [Lifter Motor]) |
Disconnect the c13 lifter motor connector.
Check if the lifter motor moves smoothly when the battery is connected to the lifter motor connector terminals.
OK | ||||||
---|---|---|---|---|---|---|
|
Result | Proceed to |
---|---|
OK (for Standard Seat Type) | A |
OK (for Sports Seat Type, Luxury Seat Type) | B |
NG (for Standard Seat Type) | C |
NG (for Sports Seat Type) | D |
NG (for Luxury Seat Type) | E |
B |
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY RH) Click here |
C |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH (LIFTER MOTOR) Click here |
D |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH (LIFTER MOTOR) Click here |
E |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH (LIFTER MOTOR) Click here |
A |
CHECK HARNESS AND CONNECTOR (POWER SEAT SWITCH ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY RH)
Disconnect the c17 power seat switch assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
OK |
REPLACE POWER SEAT SWITCH ASSEMBLY Click here |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY RH)
Disconnect the c5 position control ECU assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Result | Proceed to |
---|---|
OK (for Sports Seat Type) | A |
OK (for Luxury Seat Type) | B |
NG | C |
A |
REPLACE POSITION CONTROL ECU ASSEMBLY Click here |
B |
REPLACE POSITION CONTROL ECU ASSEMBLY Click here |
C |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
PERFORM ACTIVE TEST USING GTS (LIFTER OPERATION)
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 |
---|---|---|---|
Lifter Operation | Seat lifter operation | Up / OFF / Down | - |
OK |
---|
Motor operates normally. |
NG |
INSPECT FRONT SEAT ADJUSTER ASSEMBLY LH (LIFTER MOTOR) Click here |
OK |
CHECK POSITION CONTROL ECU ASSEMBLY (LIFTER MOTOR CIRCUIT)
*a | Front view of wire harness connector (to Front Seat Adjuster Assembly LH [Lifter Motor]) |
Disconnect the lifter 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 (LIFTER MOTOR)
*a | Component with harness connected (Front Seat Adjuster Assembly LH [Lifter Motor]) |
Reconnect the lifter 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 (LIFTER 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 (LIFTER MOTOR)
*a | Component without harness connected (Front Seat Adjuster Assembly LH [Lifter Motor]) |
Disconnect the d12 lifter motor connector.
Check if the lifter motor moves smoothly when the battery is connected to the lifter motor connector terminals.
OK | ||||||
---|---|---|---|---|---|---|
|
NG |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY LH (LIFTER MOTOR) Click here |
OK |
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY LH)
Disconnect the d2 position control ECU assembly connector.
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 |