2007 KIA CARNIVAL Workshop Manual

IMS
(Integrated Memory) Power Seat Control

2007 > 2.7L V6 GASOLINE >
CIRCUIT DIAGRAM

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
An optimal seat position set by a driver can be memorized in P/seat unit by memory SW and position SW, which
enables restoration of seat position set by the driver despite seat adjustments.
Furthermore, data is transmitted between P/seat and IPM, DDM, ADM, RAM, FAM, CLUSTER through CAN BUS.
Seat position presets cannot be recalled while driving. An emergency stop function is provided; additional functions are
described below.
1. It conducts manual operation of seat by CAN BUS data transmitted by DDM as well as that of adjustable pedal by
CAN BUS data transmitted by IPM received when operating SW manually.
2. Manual SW behavior when communication stops (back- up behavior)
a. Slide front/rear
b. Recline front/rear
c. Position control of slide motor is possible by manual SW even in case of congestion in CPU or removal of a
fuse for P/seat unit B.
3. 2 memory locations are provided for storing seat, outside mirror, and adjustable pedal presets.
4. The driver seat can be set to slide rearward when the ignition key is removed, and forward when the key is
inserted.
5. 2 additional presets for seat, mirror, and adjustable pedal position can be stored with the RKE transmitter.
OPERATION
MANUAL OPERATION
Manual operation of the driver seat and adjustable pedals is possible provided the transaxle is in 'P' range and the
vehicle speed is 0 MPH. Operation of the manual controls overrides any automatic operation commanded via CAN.
MEMORY OPERATION
1. Pressing the 'M' button on the control panel will place the system into memory storage mode and will result in a
single pulse from the output buzzer.
2. If one of the memory location buttons is pressed and held within 5 seconds of pressing the 'M' button, the output
buzzer will pulse twice to indicate successful storage of seat, mirror, and adjustable pedal positions.
3. The ignition switch must be in the RUN or START position, the vehicle speed must be 0 MPH, and the transaxle
must be in 'P' range to store memory presets.
4. Pressing the 'M' button while recalling a stored preset will halt the preset recall operation.
5. Memory will be cleared if battery is removed.
MEMORY REPLAY OPERATION
1.Pressing one of the memory location buttons will result in the driver seat, outside mirrors, and adjustable pedals
being positioned based on the stored preset data.
2. The ignition switch must be in the RUN position, the transaxle must be in 'P' range, the vehicle speed must be 0
MPH, and the manual functions must not be in operation to recall stored presets.
3. Others
a. Play operation not recorded in the position switch will not be conducted and there will be no buzzer output.
b. If other data is received during preset recall operation, the most recent preset recall signal will take
precedence.
c. If engine is started during preset recall operation, halt preset recall operation, and resume it toward target
position 100ms after Ignition switch is returned to "RUN". However, if the START state lasts over 5 sec., it will
not resume even after returning to RUN.
d. If preset recall order is received during engine start, preset recall operation is inhibited.
e. If input from manual switch for seat and adjust pedal occurs during preset recall operation of seat and adjust
pedal, halt all their preset recall operations.
f. If an error occurs during manual operation of seat and adjust pedal, delete Memory.

4.Operation control
a. Prioritization of operations
Motor starting is delayed for 100ms respectively in case of auto control to prevent rush current from overlap
when motors are running, and it follows the following order.
Slide > recline > front height > rear height > adjust pedal
b. Memory preset recall is conducted in the following order, and delay time for each motor is as follows.
T1 : Manimum 0.1 sec.
Continuous cooperation TIMER value for each motor
Slide: 15 sec., recline: 30 sec., front height: 5 sec., rear height: 8 sec., adjust pedal: 10 sec.
c. Control when turning to the opposite direction
When motor has to be run in a reverse direction during Easy access function or preset recall operation, stop the
operation immediately, wait for 100ms and then try operation to the reverse direction.
d. If the difference between position and the current one is below specified value, motor will not run even though
preset recall data is received.
Slide, recline, front height, rear height : 6PULSE
Adjust pedal: 3LSB(about 0.06V)
e. Operation will stop upon reaching Motor's target point when conducting Easy access function or preset recall
operation.
EASY ACCESS FUNCTION OPERATION (SLIDE MOTOR ONLY)
1.Easy access function operation is allowed only when auto switch is on, and the operation will be halted if auto
switch changes from on to off.
2. If a key is removed and CAN BUS data transmitted from IPM changes from "on" to "off", the seat slide will move
50mm backward based on the IGN off point. If a key off position is farther back than 50mm against the IGN off
point, get - off gearing will not be conducted. If slide rear limit becomes off in the middle of backward operation,
retreat control will be halted.
3. The following conditions will be identified and processed by IMS, and if any one of the following conditions is met,
Easy access function operation will be prevented or halted.
a. When "P" position switch is not on.
b. When Vehicle Speed in CAN BUS data transmitted from cluster is "3km/h" or faster.
c. When seat and pedal is under manual switch operation.
d. When auto switch is off.
4. When control is halted in the middle of backward operation, the remaining operation will not be completed, and
when returning, it will return just as much as it retreated.
5. It will move to IGN off point in case of Get- on gearing by key in despite manual switch input during or after
backward operation.
6. After the key is removed, on the condition of SLEEP state, Easy access function operation will be conducted after
150ms if the key is inserted when auto switch is turned ON(OFF) from Off(ON).

MEMORY STORAGE OPERATION BY KEYLESS
1.If "ID1" or "ID2" is received during keyless lock operation, record seat and pedal position in keyless code. (there is
no buzzer output during memory storage operation by keyless)
2. Memory storage operation is allowed for a single ID after a change of IG from "on" →"off".
3. Any one of the following conditions will prevent keyless Memory storage operation.
a. When "P" position switch is not on.
b. When Vehicle Speed in CAN BUS data transmitted from CLUSTER is "3km/h" or faster.
c. When seat and pedal is manipulated by CAN BUS and manual switch.
d. When IG transmitted from IPM is other than off.
PRESET RECALL OPERATION BY KEYLESS
1.When IG is off (CAN BUS data IG transmitted from IPM is "off") and a key is removed (CAN BUS data Key
Reminder Switch transmitted from IPM is "off"), and if "ID1" or "ID2" is received during keyless unlock operation, it
automatically adjusts seat and pedal positions as memorized in keyless code (there is no buzzer output during
preset recall operation by keyless). However, seat slide adjustment position is determined as follows, depending on
Auto switch.
a. When auto switch is on ("IMS Auto Switch" is "on") , the position is automatically adjusted to 50 mm farther
back than target position, and if a key is inserted ("Key Reminder Switch" changes from "off" to "on"), it
conducts Get- on gearing operation to a target preset recall position.
b. If auto switch is off ("IMS Auto Switch" is "off"), it moves to the target memory play position.
2. Any one of the following conditions will prevent preset recall operation.
a. When "P" position switch is not on.
b. When Vehicle Speed in CAN BUS data transmitted from cluster is "3km/h" or faster.
c. When seat and pedal is manipulated by CAN BUS and manual switch.
d. When IG Switch transmitted from IPM is other than off.
e. When a key is inserted.
3. Playing will be halted during preset recall operation if any of the following conditions is met.
a. When "P" position switch is not on.
b. When vehicle speed in CAN BUS data transmitted from cluster is "3km/h" or faster.
c. When seat and pedal is manipulated by CAN BUS and manual switch.
SETTING LIMIT
1.A limit switch is installed to prevent the seat from traveling beyond the maximum forward/reward positions.
2. No limit switch is installed for the recline, height, or pedal adjustments. Arbitrary limit positions are used for these
functions.
DETECTING ERRORS FOR SEAT
Take countermeasure against error if the following conditions occur during manual switch operation.
a. Error when pulse is not fed.
SlideReclineFront height Rear height

Error conditionBelow 6 pulses in 2 sec. Below 6 pulses in 1 sec.
Prerequisite FR/RR limit SW on Limit setting complete
a. Stop the related motor(seat / pedal) if an error is detected during playing or Easy access function operation.
b. Stop the corresponding motor if an error is detected during manual operation (excluding slide motor).
b. If seat sensor Vcc below 1V is detected by 1s
a. Stop all seat motors running if seat sensor Vcc error is detected during playing or Easy access function operation.
(no buzzer output)
c. Return if seat sensor Vcc is 4V or more.
DETECTING ERRORS FOR ADJUST PEDAL
1.If signal change is below 0.06V per sec though motor is running.
a. Stop the corresponding motor if error is detected during playing or Easy access function operation.
2. If adjust pedal sensor Vcc below 1V is detected by 1s
a. Stop pedal motor running if pedal sensor Vcc error is detected during playing or Easy access function operation.
(no buzzer output)
3. Return if adjust pedal sensor Vcc is 4V or more.
HANDLING ERRORS
1.If errors are discovered, regard them as harness disconnection or sensor failure, and conduct the following
measures.
a. Stop auto control (play or Easy access function operation) if it is under auto control and set off buzzer 10 times
(however, have motors other than the one with an error operate normally).
b. Set off alarm again in case of recurrence of error after restoration of a motor with an error.
c. Complete alarm 10 times though it comes back to normal during error alarm.
d. Stop alarm if receiving memory recall or play order, and set off buzzer in the corresponding function.
e. Manual operation control is allowed even for a motor with errors.
f. Set off buzzer if memory or play order is received even during error.
g. The timing to lift auto control suspension is when repair for the failing motor is completed, and the criteria for
the completion point are as follows:
a. Seat: if signal input is normal with over 6 pulses within a sec. from position sensor of a motor with an error
caused by manual switch.
b. Adjust pedal: if there is change in input of over 3 LSB within 1 sec. from sensor by manual switch.

2007 > 2.7L V6 GASOLINE >
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Remove the seat back (Refer to Body group - front seat).
3.Remove the power seat module after removing the power seat module mounting nuts (4EA) and connector (3EA).
4.Installation is the reverse of removal.

IMS
(Integrated Memory) Control Switch