Operation Check
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): OPERATION CHECK
1. CHECK POWER SEAT FUNCTION
(a) Check the basic functions.
(1) Operate the switches of the front power seat switch LH and check to make sure that each seat function works:
* Sliding function (*1)
* Front vertical function (*2)
* Lifter function (*3)
* Reclining function (*4)
* Lumbar support function (*5)
* Variable length function(*6)
2. CHECK POWER SEAT MOTOR ASSEMBLY (SLIDING, FRONT VERTICAL, LIFTER AND RECLINING FUNCTIONS)
(a) Check the PTC operation inside the power seat motor.
HINT
The resistance of the PTC thermistor increases when a switch of the front power seat switch LH is held down even after the seat has been moved to the farthest possible position in one direction. If the resistance increases beyond a specified level, the current is shut off to prevent a short circuit.
NOTICE:
* The inspection should be performed with the seat installed in the vehicle.
* Perform the 4 steps below to check the full range of motion for each power seat function.
(1) Choose a power seat function. Operate a switch of the front power seat switch LH and move the seat to the farthest possible position in one direction. Keep the seat in that position for approximately 60 seconds.
(2) Operate the switch of the front power seat switch LH again and continue to try to move the seat in the same direction as in the previous step. Measure the time until the current is shut off (motor operation sound will stop).
Standard:
4 to 90 seconds
(3) After the current is shut off, release the switch of the front power seat switch LH and wait for approximately 60 seconds.
(4) Operate the same switch of the front power seat switch LH and move the seat in the opposite direction. Check that the motor operates.
3. CHECK SEAT VARIABLE CUSHION MOTOR (VARIABLE FUNCTION)
(a) Check the PTC operation inside the power seat motor.
HINT
The inspection should be performed with the seat installed in the vehicle.
(1) Operate the seat variable cushion switch and move the seat cushion to either the foremost or rearmost position. Keep the seat in that position for approximately 60 seconds.
(2) Operate the seat variable cushion switch again and continue to try to move the seat cushion in the same direction as in the previous step. Measure the time until the current is shut off (motor operation sound will stop).
Standard:
4 to 90 seconds
(3) After the current is shut off, release the seat variable cushion switch and wait for approximately 60 seconds.
(4) Operate the seat variable cushion switch and move the seat in the opposite direction. Check that the motor operates.
4. CHECK LUMBAR SUPPORT ADJUSTER ASSEMBLY
(a) Check the PTC operation inside the power seat motor.
HINT
The inspection should be performed with the seat installed in the vehicle.
(1) Operate the lumbar switch and move the lumbar support to either the foremost or rearmost position. Keep the seat in that position for approximately 60 seconds.
(2) Operate the lumbar switch again and continue to try to move the lumbar support in the same direction as in the previous step. Measure the time until the current is shut off (motor operation sound will stop).
Standard:
4 to 90 seconds
(3) After the current is shut off, release the lumbar switch and wait for approximately 60 seconds.
(4) Operate the lumbar switch and move the seat in the opposite direction. Check that the motor operates.
5. CHECK POWER SEAT POWER EASY ACCESS SYSTEM
HINT
When troubleshooting a function, first make sure that the function is set to the default setting.
(a) Away function
(1) Turn the power switch off and move the shift lever to P.
(2) Disengage the seatbelt tongue plate from the buckle.
(3) Make sure that the seat slides rearwards.
(b) Return function
(1) Turn the power switch on (ACC or IG) or engage the seatbelt tongue plate to the buckle.
(2) Make sure that the seat slides forward.
6. CHECK MEMORY AND SEAT RESTORING OPERATION
HINT
* The SET , M1, M2 and M3 seat memory switches are shown in the illustration.
* The seat position will not be stored if the SET switch and 2 or more of the seat memory switches (for example, M1 switch and M2 switch) are pressed simultaneously.
(a) Turn the power switch on (IG) and move the shift lever to P.
(b) Move the seat to the maximum front and upper positions via the seat switch.
(c) Check that the buzzer sounds for 0.5 seconds and the seat position is memorized when the M1 switch is pressed within 3 seconds after the SET switch is being pressed.
HINT
* The seat position will be stored when the M1 switch is pressed while the SET switch is being pressed.
* The seat position will not be stored when the SET switch and M1 switch are pressed simultaneously.
(d) Move the seat out of the maximum front and upper positions via the seat switch.
(e) Check that the buzzer sounds for 0.5 seconds and the seat position is memorized when the M2 switch is pressed within 3 seconds after the SET switch is being pressed.
HINT
* The seat position will be also stored when the M2 switch is pressed while the SET switch is being pressed.
* The seat position will not be stored when the SET switch and M2 switch are pressed simultaneously.
(f) Move the seat to the maximum rear and down positions via the seat switch.
(g) Check that the buzzer sounds for 0.5 seconds and the seat position is memorized when the M3 switch is pressed within 3 seconds after the SET switch is being pressed.
HINT
* The seat position will be also stored when the M3 switch is pressed while the SET switch is being pressed.
* The seat position will not be stored when the SET switch and M3 switch are pressed simultaneously.
(h) Check that the buzzer sounds for 0.1 seconds and the seat automatically moves into the maximum front and upper positions (memorized positions) when the M1 switch is pressed.
(i) Check that the buzzer sounds for 0.1 seconds and the seat automatically moves out of the maximum front and upper positions (memorized positions) when the M2 switch is pressed.
(j) Check that the buzzer sounds for 0.1 seconds and the seat automatically moves into the maximum rear and down positions (memorized positions) when the M3 switch is pressed.
(k) Turn the power switch off and open the driver door. Check that the buzzer sounds for 0.1 seconds and the seat automatically moves to the memorized position by pressing the M1, M2 or M3 switch within 180 seconds after the power switch is turned off.
(l) Turn the power switch off and close the driver door. Check that the buzzer sounds for 0.1 seconds and the seat automatically moves to the memorized position by pressing the M1, M2 or M3 switch within 60 seconds after the power switch is turned off.
(m) Operate the front vertical function of the power seat switch to tilt the seat down 3 times;
Within 10 seconds after operating the front vertical function of the power seat switch, operate the lifter function of the power seat switch to tilt up and the reclining function of the power seat switch to recline the seat simultaneously, and hold both switches for 10 seconds.
HINT
The buzzer sounds for 0.5 seconds when the memory is cleared.
7. CHECK MEMORY CALL FUNCTION
(a) Automatic memory call function check
(1) With a transmitter key recognition code registered:
Perform a wireless door unlock operation and check that opening the driver side door causes the following:
* The buzzer sounds for 0.1 seconds.
* The front seat, the steering wheel (tilt & telescopic) and outer mirror surface position automatically move to a stored positions.
HINT
* The registered transmitter key recognition code is recalled automatically.
* If the automatic memory call function is not operated, the buzzer will not sound.
(b) Memory registration (except card type key)
(1) With the power switch off and the driver side door closed, press and hold the M1, M2 or M3 switch. The main body ECU (multiplex network body ECU) will enter transmitter key recognition code registration mode to allow a key to be linked to mirror surface memory position.
HINT
If the memory switch is released before entering registration mode, the memory switch will not enter registration mode.
(2) When the manual LOCK or UNLOCK switch is pressed, check that the buzzer of the front power seat switch LH sounds once (0.5 seconds).
(c) Memory registration (for card type key)
(1) With the power switch off and the driver side door closed, press and hold the M1, M2 or M3 switch while carrying the card key. The main body ECU (multiplex network body ECU) will enter transmitter key recognition code registration mode to allow a key to be linked to mirror surface memory position.
HINT
If the memory switch is released before entering registration mode, the memory switch will not enter registration mode.
(2) When the manual door lock switch is pressed, check that the buzzer of the front power seat switch LH sounds once (0.5 seconds).
(d) Memory deletion (except card key type)
(1) With the power switch off and the driver side door closed, press and hold the SET switch. The main body ECU (multiplex network body ECU) will enter transmitter key recognition code deletion mode.
HINT
If the memory switch is released before entering deletion mode, the memory switch will not enter deletion mode.
(2) When the manual LOCK or UNLOCK switch is pressed, check that the buzzer of the front power seat switch LH sounds twice (0.1 seconds each time).
(e) Memory deletion (for card type key)
(1) With the power switch off and the driver side door closed, press and hold the SET switch while carrying the card key. The main body ECU (multiplex network body ECU) will enter transmitter key recognition code deletion mode.
HINT
If the memory switch is released before entering deletion mode, the memory switch will not enter deletion mode.
(2) When the manual door lock switch is pressed, check that the buzzer of the front power seat switch LH sounds twice (0.1 seconds each time).
8. MEMORY CALL EMERGENCY STOP FUNCTION
(a) While a memory call function is operating, check that performing one of the following will stop the memory call operation: 1) press the SET switch, M1 switch, M2 switch or M3 switch, or 2) press the front power seat switch LH.