Seat: Overview — Lexus IS II (2005-2008)

SYSTEM DESCRIPTION

FRONT POWER SEAT CONTROL SYSTEM DESCRIPTION The driver seat and front passenger seat are equipped with slide, reclining, lifter, front vertical, and lumbar support adjustment functions. The memory system for the front seats is optional. With the memory function, the front power seat switch (position control ECU) performs the following: 1) controls the slide, reclining, lifter, and front vertical motors; 2) memorizes the seat position; and 3) operates the seat restoring operation. The memory call function uses the key ID code of the electrical key to memorize and reproduce the appropriate driving position for each individual who possesses an electrical key.
FUNCTION OF MAIN COMPONENT FUNCTION OF MAIN COMPONENT CHART Components Function Power seat motor assembly (slide motor) Activated based on a signal from the position control ECU and slides the seat forward and rearward. Power seat motor assembly (reclining motor) Activated based on a signal from the position control ECU and tilts and reclines the seat. Power seat motor assembly (front vertical motor) Activated based on a signal from the position control ECU and raises and lowers the seat cushion front vertically. Power seat motor assembly (lifter motor) Activated based on a signal from the position control ECU and raises and lowers the seat cushion vertically. Lumbar support adjuster motor Activated based on a signal from the lumbar front power seat switch and adjusts lumbar support. Front power seat switch (reclining, lifter, slide, front vertical) Based on switches operated, seat adjuster signals are input in the position control ECU and the seat is adjusted accordingly. Lumbar front power seat switch Based on switches operated, the seat is adjusted accordingly. Seat memory switch LH (driver side) (SET switch, memory switch) When the SET switch and M1, M2, or M3 switch are pressed simultaneously, a signal is input to the outer mirror control ECU LH and sent to the position control ECU, which records the seat position, steering wheel position (tilt & telescopic), and outer mirror position (RH and LH). When the M1, M2, or M3 switch is pressed, a signal is input to the outer mirror control ECU LH and sent to the position control ECU, which changes the seat position, steering wheel position (tilt & telescopic), and outer mirror position (RH and LH) to each recorded position. Seat memory switch RH (passenger side) (SET switch, memory switch) When the SET switch and M1, M2, or M3 switch are pressed simultaneously, a signal is input to the outer mirror control ECU RH and sent to the position control ECU, which records the seat position. When the M1, M2, or M3 switch is pressed, a signal is input to the outer mirror control ECU RH and sent to the position control ECU, which changes the seat position to the recorded position.
SYSTEM OPERATION The front power seat adjustment and position memory are shown in the chart below. FRONT POWER SEAT SYSTEM CHART Seat Adjustment Function Driver Passenger Fore-and-Aft Slide Power and memory Power and memory Reclining Power and memory Power and memory Front Vertical Height Power and memory Power and memory Lifter Power and memory Power and memory Lumbar Support Power Power Headrest Fore-and-Aft Slide-linked Manual For the driver side memory function, the memory switch operation is first transferred from the outer mirror control ECU LH to the front power seat switch LH (position control ECU) via the multiplex communication line. For the passenger side memory function, memory switch operation is first transferred from the outer mirror control ECU RH to the front power seat switch RH (position control ECU) via the multiplex communication line. Then, either the seat position is stored in memory or a previously stored seat position is recalled.

DESCRIPTION

When the power seat control switch is operated, a command signal is sent to the front power seat switch LH (position control ECU). The front power seat switch LH (position control ECU) then controls the appropriate seat motor as needed. This memory system does not use a seat position sensor. The seat position is detected by counting pulses that are output when the motor turns. If there is no pulse output from the motor, the motor will stop operating. The front power seat switch LH (position control ECU) is designed so that any malfunction of the seat memory system will not interfere with manual seat control. If the front power seat switch LH (position control ECU) detects a low motor speed, abnormal activity, or sudden motor current fluctuation, the system will stop the motor. If the motor operates continuously for 120 seconds or more, the system will stop the motor until the switch is turned on again.

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Scheme 1: WIRING DIAGRAM

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PERFORM ACTIVE TEST BY INTELLIGENT TESTER (FRONT POWER SEAT SWITCH LH (POSITION CONTROL ECU)) Connect the intelligent tester (with CAN VIM) to the DLC3. Turn the engine switch on (IG). Perform the ACTIVE TEST by following the directions on the tester screen. SEAT: ACTIVE TEST DISPLAY CHART (SEAT) Item Test Details Diagnostic Note RECLINING Seat reclining operation FRONT / REAR - F VERTICAL Seat front vertical operation UP / DOWN - LIFTER Seat lifter operation UP / DOWN - SLIDE Seat sliding operation FRONT / REAR - OK: Each power seat motor operates. NG: Go to step 2 OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
INSPECT FRONT SEAT ADJUSTER SUB-ASSEMBLY (POWER SEAT MOTOR) Inspect the power seat motor (See «INSPECTION»(ref-235576-S39787279372006062400000) ). OK: The power seat motor operates. NG: REPLACE FRONT SEAT ADJUSTER SUB-ASSEMBLY (POWER SEAT MOTOR) OK: Go to next step.
CHECK WIRE HARNESS (FRONT POWER SEAT SWITCH LH - POWER SEAT MOTOR) Disconnect the front power seat switch LH (position control ECU) connector and power seat motor connectors. Measure the resistance according to the value(s) in the table below. TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U6-2 (SLD+) - U2-1 Always Below 1 ohms U6-3 (SLD-) - U2-2 Always Below 1 ohms U6-4 (FRV-) - U8-2 Always Below 1 ohms U6-6 (FRV+) - U8-1 Always Below 1 ohms U6-7 (LFT+) - U9-2 Always Below 1 ohms U6-9 (LFT-) - U9-1 Always Below 1 ohms U6-8 (RCL+) - U5-2 Always Below 1 ohms U6-10 (RCL-) - U5-1 Always Below 1 ohms U6-2 (SLD+) - Body ground Always 10 kohms or higher U6-3 (SLD-) - Body ground Always 10 kohms or higher U6-4 (FRV-) - Body ground Always 10 kohms or higher U6-6 (FRV+) - Body ground Always 10 kohms or higher U6-7 (LFT+) - Body ground Always 10 kohms or higher U6-9 (LFT-) - Body ground Always 10 kohms or higher U6-8 (RCL+) - Body ground Always 10 kohms or higher U6-10 (RCL-) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

When the power seat control switch is operated, a command signal is sent to the front power seat switch RH (position control ECU). The front power seat switch RH (position control ECU) then controls the appropriate seat motor as needed. This memory system does not use a seat position sensor. The seat position is detected by counting pulses that are output when the motor turns. If there is no pulse output from the motor, the motor will stop operating. The front power seat switch RH (position control ECU) is designed so that any malfunction of the seat memory system will not interfere with manual seat control. If the front power seat switch RH (position control ECU) detects a low motor speed, abnormal activity, or sudden motor current fluctuation, the system will stop the motor. If the motor operates continuously for 120 seconds or more, the system will stop the motor until the switch is turned on again.

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Scheme 3: WIRING DIAGRAM

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PERFORM ACTIVE TEST BY INTELLIGENT TESTER (FRONT POWER SEAT SWITCH RH (POSITION CONTROL ECU)) Connect the intelligent tester (with CAN VIM) to the DLC3. Turn the engine switch on (IG). Perform the ACTIVE TEST by following the directions on the tester screen. SEAT: ACTIVE TEST DISPLAY CHART Item Test Details Diagnostic Note RECLINING Seat reclining operation FRONT / REAR - F VERTICAL Seat front vertical operation UP / DOWN - LIFTER Seat lifter operation UP / DOWN - SLIDE Seat sliding operation FRONT / REAR - OK: Each power seat motor operates. NG: Go to step 2 OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
INSPECT FRONT SEAT ADJUSTER SUB-ASSEMBLY (POWER SEAT MOTOR) Inspect the power seat motor (See «INSPECTION»(ref-235576-S39787279372006062400000) ). OK: The power seat motor operates. NG: REPLACE FRONT SEAT ADJUSTER SUB-ASSEMBLY (POWER SEAT MOTOR) OK: Go to next step.
CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH RH - POWER SEAT MOTOR) Disconnect the front power seat switch RH (position control ECU) connector and power seat motor connectors. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition T6-2 (SLD+) - T1-2 Always Below 1 ohms T6-3 (SLD-) - T1-1 Always Below 1 ohms T6-4 (FRV-) - T4-1 Always Below 1 ohms T6-6 (FRV+) - T4-2 Always Below 1 ohms T6-7 (LFT+) - T5-1 Always Below 1 ohms T6-9 (LFT-) - T5-2 Always Below 1 ohms T6-8 (RCL+) - T9-2 Always Below 1 ohms T6-10 (RCL-) - T9-1 Always Below 1 ohms T6-2 (SLD+) - Body ground Always 10 kohms or higher ground T6-3 (SLD-) - Body ground Always 10 kohms or higher ground T6-4 (FRV-) - Body ground Always 10 kohms or higher ground T6-6 (FRV+) - Body ground Always 10 kohms or higher ground T6-7 (LFT+) - Body ground Always 10 kohms or higher ground T6-9 (LFT-) - Body ground Always 10 kohms or higher ground T6-8 (RCL+) - Body ground Always 10 kohms or higher ground T6-10 (RCL-) - Body ground Always 10 kohms or higher ground NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The seat memory switch LH sends signals to the outer mirror control ECU LH via the multiplex communication system to memorize a given seat position. This memory system does not use a position sensor. The seat position is detected by counting pulses that are output when the motor turns. If there is no pulse output from the motor, the motor will stop operating. The seat memory switch LH is later used to send signals to the front power seat switch LH (position control ECU) to return the seat to one of the memorized positions.

A/T: The power seat memory switch LH operation can be performed only when the engine switch is on (IG) and the shift lever is in the P position.
M/T: The power seat memory switch LH operation can be performed only when the engine switch is on (IG), apply the parking brake, and seat the vehicle speed below 3 km/h (1.9 mph).

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Scheme 5: WIRING DIAGRAM

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READ VALUE OF INTELLIGENT TESTER (SEAT MEMORY SWITCH LH) Connect the intelligent tester (with CAN VIM) to the DLC3. Turn the engine switch on (IG). Read the DATA LIST. SEAT: DATA LIST DISPLAY CHART Item Measurement Item/Range (Display) Normal Condition Diagnostic Note SEAT MEM M1 M1 switch signal / ON or OFF ON: M1 switch is ON OFF: M1 switch is OFF - SEAT MEM M2 M2 switch signal / ON or OFF ON: M2 switch is ON OFF: M2 switch is OFF - SEAT MEM M3 M3 switch signal / ON or OFF ON: M3 switch is ON OFF: M3 switch is OFF - SEAT SET SW SET switch signal / ON or OFF ON: SET switch is ON OFF: SET switch is OFF - OK: On the tester screen, each item changes between ON and OFF according to the above chart. NG: Go to step 2 OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
INSPECT SEAT MEMORY SWITCH LH Remove the seat memory switch LH. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Switch Position Specified Condition 1 (MRY) - 5 E) SET switch is pressed Below 1 ohms 2 (M1) - 5 (E) M1 switch is pressed Below 1 ohms 3 (M2) - 5 (E) M2 switch is pressed Below 1 ohms 4 (M3) - 5 (E) M3 switch is pressed Below 1 ohms 1 (MRY) - 5 E) SET switch is not pressed 10 kohms or higher 2 (M1) - 5 (E) M1 switch is not pressed 10 kohms or higher 3 (M2) - 5 (E) M2 switch is not pressed 10 kohms or higher 4 (M3) - 5 (E) M3 switch is not pressed 10 kohms or higher NG: REPLACE SEAT MEMORY SWITCH LH OK: Go to next step.
CHECK HARNESS AND CONNECTOR (SEAT MEMORY SWITCH LH CIRCUIT) Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Specified Condition M6-2 (M1) - M6-5 (E)) 10 kohms or higher M6-3 (M2) - M6-5 (E) 10 kohms or higher M6-4 (M3) - M6-5 (E) 10 kohms or higher M6-1 (MRY) - M6-5 (E) 10 kohms or higher M6-5 (E) - Body ground Below 1 ohms NG: Go to step 4 OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU - SEAT MEMORY SWITCH, BODY GROUND) Disconnect the outer mirror control ECU LH connector. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Specified Condition M10-22 (M1) - M6-2 (M1) Below 1 ohms M10-23 (M2) - M6-3 (M2) Below 1 ohms M10-24 (M3) - M6-4 (M3) Below 1 ohms M10-25 (MM) - M6-1 (MM) Below 1 ohms M10-26 (MSWE) - M6-5 (E) Below 1 ohms M10-26 (MSWE) - Body ground Below 1 ohms M6-5 (E) - Body ground Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE OUTER MIRROR CONTROL ECU LH

The seat memory switch RH sends signals to the outer mirror control ECU RH via the multiplex communication system to memorize a given seat position. This memory system does not use a position sensor. The seat position is detected by counting pulses that are output when the motor turns. If there is no pulse output from the motor, the motor will stop operating. The seat memory switch RH is later used to send signals to the front power seat switch RH (position control ECU) to return the seat to one of the memorized positions.

A/T: The power seat memory RH operation can be performed only when the engine switch is on (IG) and the shift lever is in the P position.
M/T: The power seat memory switch LH operation can be performed only when the engine switch is on (IG), apply the parking brake, and seat the vehicle speed below 3 km/h (1.9 mph).

Scheme 9

Scheme 9: WIRING DIAGRAM

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READ VALUE OF INTELLIGENT TESTER (SEAT MEMORY SWITCH RH) Connect the intelligent tester (with CAN VIM) to the DLC3. Turn the engine switch on (IG). Read the DATA LIST. SEAT: DATA LIST DISPLAY CHART Item Measurement Item/Range (Display) Normal Condition Diagnostic Note SEAT MEM M1 M1 switch signal / ON or OFF ON: M1 switch is ON OFF: M1 switch is OFF - SEAT MEM M2 M2 switch signal / ON or OFF ON: M2 switch is ON OFF: M2 switch is OFF - SEAT MEM M3 M3 switch signal / ON or OFF ON: M3 switch is ON OFF: M3 switch is OFF - SEAT SET SW SET switch signal / ON or OFF ON: SET switch is ON OFF: SET switch is OFF - OK: On the tester screen, each item changes between ON and OFF according to the above chart. NG: Go to step 2 OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
INSPECT SEAT MEMORY SWITCH RH Remove the seat memory switch RH. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Switch Position Specified Condition 1 (MMRY) - 5 (E) SET switch is pressed Below 1 ohms 2 (1) - 5 (E) M1 switch is pressed Below 1 ohms 3 (2) - 5 (E) M2 switch is pressed Below 1 ohms 4 (3) - 5 (E) M3 switch is pressed Below 1 ohms 1 (MMRY) - 5 (E) SET switch is not pressed 10 kohms or higher 2 (1) - 5 (E) M1 switch is not pressed 10 kohms or higher 3 (2) - 5 (E) M2 switch is not pressed 10 kohms or higher 4 (3) - 5 (E) SET switch is not pressed 10 or higher NG: REPLACE SEAT MEMORY SWITCH RH OK: Go to next step.
CHECK HARNESS AND CONNECTOR (SEAT MEMORY SWITCH RH CIRCUIT) Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Specified Condition L7-2 (1) - L7-5 (E) 10 kohms or higher L7-3 (2) - L7-5 (E) 10 kohms or higher L7-4 (3) - L7-5 (E) 10 kohms or higher L7-1 (MMRY) - L7-5 (E) 10 kohms or higher L7-5 (E) - Body ground Below 1 ohms NG: Go to step 4 OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU - SEAT MEMORY SWITCH, BODY GROUND) Disconnect the outer mirror control ECU RH connector. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Specified Condition L10-22 (M1) - L7-2 (1) Below 1 ohms L10-23 (M2) - L7-3 (2) Below 1 ohms L10-24 (M3) - L7-4 (3) Below 1 ohms L10-25 (MM) - L7-1 (MMRY) Below 1 ohms L10-26 (MSWE) - L7-5 (E) Below 1 ohms L10-26 (MSWE) - Body ground Below 1 ohms L7-5 (E) - Body ground Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE OUTER MIRROR CONTROL ECU RH

The driver side position control ECU is contained in the front power seat switch LH.

During manual operation, only one switch signal is accepted. If signals are input from 2 or more switches simultaneously, all of them are ignored, except when signals are input from the front vertical switch and lifter switch simultaneously. In this case, the signal from the lifter switch will operate.

During automatic operation, a manual switch input will override any other operations, i.e. automatic operations will stop and the manual input operation only will be accepted. For example, if a manual switch input is activated during a seat store/restore operation, the previous operation will cease and manual operation will be performed. After the manual operation is performed, the previous automatic operation will not resume.

The power mirror store/restore operation is unaffected by manual switch inputs.

The front power seat switch does not allow the restore operation of the power seat when the system detects that the voltage of terminal SYSB is less than 8.0 +- 0.5 V for 30 msec. or is more than 10 +- 0.5 V for 30 msec.

This circuit is the power source circuit for the front power seat switch LH (position control ECU).

HINT

Manual adjustment of the slide, reclining, or lumbar can be performed even when the front power seat switch LH is not functional if current is allowed to flow into terminals +B and SYSB.

Lumbar support operation can be performed at all times.

Scheme 13

Scheme 13: WIRING DIAGRAM

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Scheme 15

INSPECT FRONT POWER SEAT SWITCH LH (POSITION CONTROL ECU POWER SOURCE CIRCUIT) Disconnect the front power seat switch LH (position control ECU) connectors. Measure the voltage according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U6-5 (+B) - Body ground Always 10 to 14 V U7-4 (IG) - Body ground Engine switch on (IG) 10 to 14 V U7-8 (SYSB) - Body ground Always 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) OK: Go to next step.
INSPECT FRONT POWER SEAT SWITCH LH (POSITION CONTROL ECU GROUND CIRCUIT) Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U6-1 (GND) - Body ground Always Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT) OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The front passenger side position control ECU is contained in the front power seat switch RH.

The power mirror store/restore operation is unaffected by manual switch inputs.

The front power seat switch RH does not allow the restore operation of the power seat when the system detects that the voltage of terminal SYSB is less than 8.0 +- 0.5 V for 30 msec. or is more than 10 +- 0.5 V for 30 msec.

This circuit is the power source circuit for the front power seat switch RH (position control ECU).

HINT

Manual adjustment of the slide, reclining, or lumbar can be performed even when the front power seat switch RH is not functional if current is allowed to flow into terminals +B and SYSB.

Lumbar support operation can be performed at all times.

Scheme 16

Scheme 16: WIRING DIAGRAM

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Scheme 18

INSPECT FRONT POWER SEAT SWITCH RH (POSITION CONTROL ECU POWER SOURCE CIRCUIT) Disconnect the front power seat switch RH (position control ECU) connectors. Measure the voltage according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition T6-5 (+B) - Body ground Always 10 to 14 V T7-4 (IG) - Body ground Engine switch on (IG) 10 to 14 V T7-8 (SYSB) - Body ground Always 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) OK: Go to next step.
INSPECT FRONT POWER SEAT SWITCH RH (POSITION CONTROL ECU GROUND CIRCUIT) Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition T6-1 (GND) - Body ground Always Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT) OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

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Scheme 19: PARTS LOCATION

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Scheme 22: SYSTEM DIAGRAM

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Scheme 24: OPERATION CHECK

CHECK POWER SEAT FUNCTION Check the basic functions. Operate the power seat switches and check to make sure each seat function works: Sliding Front vertical Lifter Reclining Lumbar support

GENERAL DESCRIPTION By operating the seat heater switch, which is located in the console box, the temperature can be controlled within the range of 30 to 40°C (86 to 104°F). The seat heater switch indicator light provides seat heater on/off status. The seat heaters of both seats are controlled by the seat heater controls. Which are located under the respective seat.

Symptom	Suspected area	See reference
Seat heater does not operate. (Front LH side)	1. RH-IG fuse
	2. FR S/HTR LH fuse
	3. Seat heater switch	REMOVAL
	4. Front seat cushion heater	INSPECTION
	5. Front seatback heater	INSPECTION
	6. Seat heater control	REMOVAL
	7. Wire harness
Seat heater does not operate. (Front RH side)	1. RH-IG fuse
	2. FR S/HTR RH fuse
	3. Seat heater switch	REMOVAL
	4. Front seat cushion heater	INSPECTION
	5. Front seatback heater	INSPECTION
	6. Seat heater control	REMOVAL
	7. Wire harness
Temperature of seat heater cannot be adjusted.	1. Seat heater switch	REMOVAL

PROBLEM SYMPTOMS CHART

GENERAL The blower volume has 4 levels controlled by operating the dial-type climate control seat switch, which is located in the console box. Whether the blower is ON or OFF can be determined by checking if the climate control seat switch indicator light is ON or OFF. The blowers of both seats are controlled by the air conditioning amplifier assembly (A/C ECU).

The A/C amplifier assembly receives seat position signals when the engine switch is on (IG), and then transmits airflow amount signals to each seat climate blower.

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Scheme 25: WIRING DIAGRAM

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SYSTEM CHECK REFERENCE CHART Climate control seat does not operate (Front LH) A Climate control seat does not operate (Front RH) B Both climate control seats do not operate C B: Go to step 8 C: Go to step 14 A: Go to next step.
CHECK WIRE HARNESS Disconnect the U12 connector. Measure the voltage and resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U12-4 (GND) - Body ground Always Below 1 ohms Voltage TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U12-1 (IG) - Body ground Engine switch on (IG) 10 to 14 V Reconnect the U12 connector. Disconnect the U13 connector. Measure the voltage and resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U13-1 (GND) - Body ground Always Below 1 ohms Voltage TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U13-2 (IG) - Body ground Engine switch on (IG) 10 to 14 V NG: REPAIR OR REPLACE WIRE HARNESS OK: Go to next step.
INSPECT SEAT CLIMATE CONTROL BLOWER Check the input signal waveform. Connect the oscilloscope to terminal 3 and body ground with the climate control blower connector still connected. Check the signal waveform according to the condition(s) in the table below. WAVEFORM REFERENCE CHART Item Condition Tool setting 2 V/DIV., 500 ., Vehicle condition Engine switch on (IG), seat heater switch ON OK: The waveform is displayed as shown in the illustration. Result RESULT CHART NG A OK (Seat cushion blower side) B OK (Seatback blower side) C B: REPLACE SEAT CUSHION BLOWER C: REPLACE SEATBACK BLOWER A: Go to next step.
CHECK WIRE HARNESS (A/C AMPLIFIER ASSEMBLY - SEAT CLIMATE CONTROL BLOWER) Disconnect the J59, U12 and U13 connectors. Measure the resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J59-16 (LOUT) - U12-3 (SIGN) Always Below 1 ohms J59-16 (LOUT) - U13-3 (FCTB) Always Below 1 ohms J59-16 (LOUT) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE WIRE HARNESS OK: Go to next step.
CHECK WIRE HARNESS (SEAT HEATER SWITCH) Disconnect the J45 connector. Measure the voltage and resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-12 (E) - Body ground Always Below 1 ohms Voltage TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-5 (IG) - Body ground Engine switch on (IG) 10 to 14 V NG: REPAIR OR REPLACE WIRE HARNESS K: Go to next step.
INSPECT SEAT HEATER SWITCH Disconnect the J45 switch. Measure the resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-8 (ASS5) - J45-10 (SGND) Always Below 1 kohms J45-9 (LH) - J45-10 (SGND) Blower switch OFF Below 1.1 kohms Blower switch ON (Vol: 3) Below 111 ohms NG: REPLACE SEAT HEATER SWITCH OK: Go to next step.
CHECK WIRE HARNESS (SEAT HEATER SWITCH - A/C AMPLIFIER ASSEMBLY) Disconnect the J45 and J59 connectors. Measure the resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-8 (ASS5) - J59-7 (S5-4) Always Below 1 ohms J45-9 (LH) - J59-3 (SW-4) Always Below 1 ohms J45-10 (SGND) - J59-10 (SG-4) Always Below 1 ohms J45-12 (E) - Body ground Always Below 1 ohms J45-8 (ASS5) - Body ground Always 10 kohms or higher J45-9 (LH) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE WIRE HARNESS OK: REPLACE A/C AMPLIFIER ASSEMBLY
CHECK WIRE HARNESS Disconnect the T12 connector. Measure the voltage and resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition T12-4 (GND) - Body ground Always Below 1 ohms Voltage TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition T12-1 (IG) - Body ground Engine switch on (IG) 10 to 14 V Reconnect the T12 connector. Disconnect the T13 connector. Measure the voltage and resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition T13-1 (GND) - Body ground Always Below 1 ohms Voltage TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition T13-2 (IG) - Body ground Engine switch on (IG) 10 to 14 V NG: REPAIR OR REPLACE WIRE HARNESS OK: Go to next step.
INSPECT SEAT CLIMATE CONTROL BLOWER Check the input signal waveform. Connect the oscilloscope to terminal 3 and body ground with the climate control blower connector still connected. Check the signal waveform according to the condition(s) in the table below. WAVEFORM REFERENCE CHART Item Condition Tool setting 2 V/DIV., 500 ., Vehicle condition Engine switch on (IG), seat heater switch ON OK: The waveform is displayed as shown in the illustration. Result RESULT CHART NG A OK (Seat cushion blower side) B OK (Seatback blower side) C B: REPLACE SEAT CUSHION BLOWER C: REPLACE SEATBACK BLOWER A: Go to next step.
CHECK WIRE HARNESS (A/C AMPLIFIER ASSEMBLY - SEAT CLIMATE CONTROL BLOWER) Disconnect the J59, T12 and T13 connectors. Measure the resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J59-8 (ROUT) - T12-3 (SIGN) Always Below 1 ohms J59-8 (ROUT) - T13-3 (VSVG) Always Below 1 ohms J59-8 (ROUT) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE WIRE HARNESS OK: Go to next step.
CHECK WIRE HARNESS (SEAT HEATER SWITCH) Disconnect the J45 connector. Measure the voltage and resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-12 (E) - Body ground Always Below 1 ohms Voltage TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-5 (IG) - Body ground Engine switch on (IG) 10 to 14 V NG: REPAIR OR REPLACE WIRE HARNESS OK: Go to next step.
INSPECT SEAT HEATER SWITCH Disconnect the J45 switch. Measure the resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-8 (ASS5) - J45-10 (SGND) Always Below 1 kohms J45-7 (RH) - J45-10 (SGND) Blower switch OFF Below 1.1 kohms Blower switch ON (Vol: 3) Below 111 ohms NG: REPLACE SEAT HEATER SWITCH OK: Go to next step.
CHECK WIRE HARNESS (SEAT HEATER SWITCH - A/C AMPLIFIER ASSEMBLY) Disconnect the J45 and J59 connectors. Measure the resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-7 (RH) - J59-2 (SW-5) Always Below 1 ohms J45-8 (ASS5) - J59-7 (S5-4) Always Below 1 ohms J45-10 (SGND) - J59-10 (SG-4) Always Below 1 ohms J45-12 (E) - Body ground Always Below 1 ohms J45-7 (RH) - J59-2 (SW-5) Always 10 kohms or higher J45-8 (ASS5) - J59-7 (S5-4) Always 10 kohms or higher NG: REPAIR OR REPLACE WIRE HARNESS OK: REPLACE A/C AMPLIFIER ASSEMBLY
CHECK WIRE HARNESS Disconnect the U12 (T12) connector. Measure the voltage and resistance according to the value(s) in the table below. *1: Front LH *2: Front RH Resistance: Front LH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U12-4 (GND) - Body ground Always Below 1 ohms Front RH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition T12-4 (GND) - Body ground Always Below 1 ohms Voltage: Front LH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U12-1 (IG) - Body ground Engine switch on (IG) 10 to 14 V Front RH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition T12-4 (GND) - Body ground Always Below 1 ohms Reconnect the U12 (T12) connector. Disconnect the U13 (T13) connector. Measure the voltage and resistance according to the value(s) in the table below. *1: Front LH *2: Front RH Resistance: Front LH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U13-1 (GND) - Body ground Always Below 1 ohms Front RH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition T13-1 (GND) - Body ground Always Below 1 ohms Voltage: Front LH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U13-2 (IG) - Body ground Engine switch on (IG) 10 to 14 V Front RH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition U13-2 (IG) - Body ground Engine switch on (IG) 10 to 14 V NG: REPAIR OR REPLACE WIRE HARNESS OK: Go to next step.
INSPECT SEAT CLIMATE CONTROL BLOWER Check the input signal waveform. Connect the oscilloscope to terminal 3 and body ground with the climate control blower connector still connected. Check the signal waveform according to the condition(s) in the table below. WAVEFORM REFERENCE CHART Item Condition Tool setting 2 V/DIV., 500 ., Vehicle condition Engine switch on (IG), seat heater switch ON OK: The waveform is displayed as shown in the illustration. *1: Front LH *2: Front RH Result RESULT CHART NG A OK (Seat cushion blower side) B OK (Seatback blower side) C B: REPLACE SEAT CUSHION BLOWER C: REPLACE SEATBACK BLOWER A: Go to next step.
CHECK WIRE HARNESS (A/C AMPLIFIER ASSEMBLY - SEAT CLIMATE CONTROL BLOWER) Disconnect the J59, U12 (T12) and U13 (T13) connectors. *1: Front LH *2: Front RH Measure the resistance according to the value(s) in the table below. Resistance: Front LH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J59-16 (LOUT) - U12-3 (SIGN) Always Below 1 ohms J59-16 (LOUT) - U13-3 (FCTB) Always Below 1 ohms J59-16 (LOUT) - Body ground Always 10 kohms or higher Front RH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J59-8 (ROUT) - T12-3 (SIGN) Always Below 1 ohms J59-8 (ROUT) - T13-3 (VSVG) Always Below 1 ohms J59-8 (ROUT) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE WIRE HARNESS OK: Go to next step.
CHECK WIRE HARNESS (SEAT HEATER SWITCH) Disconnect the J45 connector. Measure the voltage and resistance according to the value(s) in the table below. Resistance TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-12 (E) - Body ground Always Below 1 ohms Voltage TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-5 (IG) - Body ground Engine switch on (IG) 10 to 14 V NG: REPAIR OR REPLACE WIRE HARNESS OK: Go to next step.
INSPECT SEAT HEATER SWITCH Disconnect the J45 switch. Measure the resistance according to the value(s) in the table below. Resistance: Front LH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-8 (ASS5) - J45-10 (SGND) Always Below 1 kohms J45-9 (LH) - J45-10 (SGND) Blower switch OFF Below 1.1 kohms Blower switch ON (Vol: 3) Below 111 ohms Front RH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-8 (ASS5) - J45-10 (SGND) Always Below 1 kohms J45-7 (RH) - J45-10 (SGND) Blower switch OFF Below 1.1 kohms Blower switch ON (Vol: 3) Below 111 ohms NG: REPLACE SEAT HEATER SWITCH OK: Go to next step.
CHECK WIRE HARNESS (SEAT HEATER SWITCH - A/C AMPLIFIER ASSEMBLY) Disconnect the J45 and J59 connectors. Measure the resistance according to the value(s) in the table below. Resistance: Front LH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-8 (ASS5) - J59-7 (S5-4) Always Below 1 ohms J45-9 (LH) - J59-3 (SW-4) Always Below 1 ohms J45-10 (SGND) - J59-10 (SG-4) Always Below 1 ohms J45-12 (E) - Body ground Always Below 1 ohms J45-8 (ASS5) - Body ground Always 10 kohms or higher J45-9 (LH) - Body ground Always 10 kohms or higher Front RH TESTER CONDITION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition J45-7 (RH) - J59-2 (SW-5) Always Below 1 ohms J45-8 (ASS5) - J59-7 (S5-4) Always Below 1 ohms J45-10 (SGND) - J59-10 (SG-4) Always Below 1 ohms J45-12 (E) - Body ground Always Below 1 ohms J45-7 (RH) - Body ground Always 10 kohms or higher J45-8 (ASS5) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE WIRE HARNESS OK: REPLACE A/C AMPLIFIER ASSEMBLY

Scheme 47

Scheme 47: COMPONENTS

Scheme 48

Scheme 49

Scheme 50

Scheme 50: REMOVAL

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Scheme 54

Scheme 55

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait for 90 seconds after disconnecting the cable to prevent the airbag from deploying (See «PRECAUTION»(ref-235542-S10058841152006062400000) ).
REMOVE FRONT SEAT HEADREST ASSEMBLY
REMOVE FRONT INNER SEAT TRACK BRACKET COVER Move the front seat assembly to the rearmost position by operating the slide handle. Using a screwdriver, disengage the 2 claws and remove the front inner seat track bracket cover. HINT: Tape the screwdriver tip before use.
REMOVE FRONT OUTER SEAT TRACK BRACKET COVER Using a screwdriver, disengage the 2 claws and remove the front outer seat track bracket cover. HINT: Tape the screwdriver tip before use.
REMOVE REAR OUTER SEAT TRACK COVER Move the front seat assembly fully forward by operating the slide handle. Using a screwdriver, disengage the 2 claws and remove the rear seat outer track bracket cover. HINT: Tape the screwdriver tip before use.
REMOVE REAR INNER SEAT TRACK COVER Using a screwdriver, disengage the 2 claws and remove the rear inner seat track bracket cover. HINT: Tape the screwdriver tip before use.
REMOVE FRONT SEAT ASSEMBLY Move the front seat assembly to the rearmost position by operating the slide handle. Remove the 2 bolts on the front seat track bracket. Move the front seat assembly fully forward by operating the slide handle. Remove the 2 bolts on the rear seat track bracket. Move the front seat assembly to the center position and adjust the seatback to the vertical position by operating the slide and reclining adjuster release handle. Disconnect the connectors and clamp. Remove the front seat assembly. NOTE: When removing the passenger side front seat assembly, be careful not to step on the yaw rate sensor mounted on the floor under the seat.

Scheme 56

Scheme 56: DISASSEMBLY

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Scheme 78

REMOVE VERTICAL SEAT ADJUSTER KNOB (for Driver Seat) Remove the snap ring and the vertical seat adjuster knob.
REMOVE VERTICAL SEAT ADJUSTER KNOB CAP (for Driver Seat) Using a screwdriver, disengage the 3 claws and remove the vertical seat adjuster knob cap. HINT: Tape the screwdriver tip before use.
REMOVE VERTICAL ADJUSTING HANDLE (for Driver Seat) Remove the 2 screws and vertical adjusting handle.
REMOVE RECLINING ADJUSTER RELEASE HANDLE Lift the reclining adjuster release handle. Using a screwdriver, disengage the claw and remove the reclining adjuster release handle. HINT: Tape the screwdriver tip before use.
REMOVE FRONT SEAT CUSHION SHIELD (for Driver Seat) Remove the screw. Disengage the claw and clamp and remove the seat cushion shield.
REMOVE FRONT INNER SEAT BELT ASSEMBLY (See «REMOVAL»(ref-235573-S11624302162006062400000) )
REMOVE FRONT INNER SEAT CUSHION SHIELD Remove the screw. Disengage the 2 claws and clip then remove the front inner seat cushion shield.
REMOVE FRONT SEAT CUSHION COVER WITH PAD Passenger seat only: Separate the belt warning occupant detection sensor. Disengage the 2 hooks. Disengage the hooks and remove the front seat cushion cover with pad.
REMOVE FRONT SEAT CUSHION COVER Remove the hog rings. Remove the hog rings and front seat cushion cover.
REMOVE FRONT SEAT CUSHION HEATER ASSEMBLY (w/ Seat Heater System) Cut off the tack pins that fasten the seat heater, and then remove the front seat cushion heater assembly from the seat cushion cover.
REMOVE FRONT SEAT HEADREST SUPPORT Open the 2 zippers and seatback cover. Disengage the 2 claws and remove the front seat headrest support.
REMOVE FRONT SEAT HEADREST SUPPORT
REMOVE FRONT SEATBACK COVER WITH PAD Remove the hog rings and disengage the hooks. Remove the nut and separate the bracket. Remove the front seatback cover with pad.
REMOVE FRONT SEPARATE TYPE SEAT BACK COVER Remove the hog rings and front separate type seat back cover.
REMOVE FRONT SEAT BACK HEATER ASSEMBLY (w/ Seat Heater System) Cut off the tack pins that fasten the seat heater, and then remove the front seat cushion heater assembly from the seat cushion cover.
REMOVE SEAT RECLINING ADJUSTER INSIDE COVER LH Remove the screw. Disengage the claw and remove the seat reclining adjuster inside cover LH.
REMOVE SEAT RECLINING ADJUSTER INSIDE COVER RH HINT: Use the same procedures for the RH side and LH side.
REMOVE RECLINING ADJUSTER INSIDE COVER LH Remove the screw and reclining adjuster inside cover LH.
REMOVE RECLINING ADJUSTER INSIDE COVER RH HINT: Use the same procedures for the RH side and LH side.
REMOVE FRONT LOWER SEAT CUSHION SHIELD LH Using a screwdriver, disengage the claw and remove the front lower seat cushion shield LH.
REMOVE FRONT LOWER SEAT CUSHION SHIELD RH HINT: Use the same procedures for the RH side and LH side.
REMOVE SEAT POSITION AIRBAG SENSOR (for Driver Seat)
REMOVE VERTICAL ADJUSTER SPACER (for Driver Seat) Disengage the clip and remove the vertical adjuster spacer.
REMOVE SEAT POSITION SENSOR Disconnect the connector. Detach the claw and remove the seat position sensor protector. Using a T30 "torx" socket, remove the "torx" bolt and seat position sensor.

Scheme 79

Scheme 79: REASSEMBLY

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Scheme 94

INSTALL VERTICAL ADJUSTER SPACER Engage the clip and install the vertical adjuster spacer.
INSTALL SEAT POSITION AIRBAG SENSOR (for Driver Side) (See «REASSEMBLY»(ref-235576-S24441387342006062400000) )
INSTALL FRONT SEAT CUSHION SHIELD LOWER LH Engage the claw and install the seat cushion shield lower LH.
INSTALL FRONT SEAT CUSHION SHIELD LOWER RH HINT: Use the same procedures described for the LH side.
INSTALL RECLINING ADJUSTER INSIDE COVER LH Install the reclining adjuster inside cover LH with the screw.
INSTALL RECLINING ADJUSTER INSIDE COVER RH HINT: Use the same procedures described for the LH side.
INSTALL SEAT RECLINING ADJUSTER INSIDE COVER LH Engage the claw. Install the reclining adjuster inside cover LH with the screw.
INSTALL SEAT RECLINING ADJUSTER INSIDE COVER RH HINT: Use the same procedures described for the LH side.
INSTALL FRONT SEAT BACK HEATER ASSEMBLY (w/ Seat Heater System) Using a tacker, install the front seatback heater to the end of the seat cover with the tack pins.
INSTALL FRONT SEATBACK CUSHION COVER Using hog ring pliers, install the front seatback cover to the front seatback pad with new hog rings. NOTE: Be careful not to damage the cover. When installing the hog rings, take care to minimize wrinkles as much as possible.
INSTALL FRONT SEATBACK COVER WITH PAD
INSTALL FRONT SEAT HEADREST SUPPORT ASSEMBLY Engage the 4 claws and install the front seat headrest support assemblies.
INSTALL FRONT SEAT CUSHION HEATER ASSEMBLY (w/ Seat Heater System) Using a tacker, install the front seat cushion heater to the end of the seat cover with the tack pins.
INSTALL FRONT SEAT CUSHION COVER Using hog ring pliers, install new hog rings. NOTE: Be careful not to damage the cover. When installing the hog rings, take care to minimize wrinkles as much as possible. Using hog ring pliers, install the front seat cushion cover with new hog rings. NOTE: Be careful not to damage the cover. When installing the hog rings, take care to minimize wrinkles as much as possible.
INSTALL FRONT SEAT CUSHION COVER WITH PAD Install the hooks and front seat cushion cover with pad. Passenger seat only: Install the seat position airbag sensor connector.
INSTALL FRONT SEAT INNER CUSHION SHIELD Engage the 2 claws and clip. Install the front seat inner cushion shield with the screw.
INSTALL FRONT SEAT INNER BELT ASSEMBLY (See «INSTALLATION»(ref-235573-S03807630332006062400000) )
INSTALL FRONT SEAT CUSHION SHIELD (for Driver Seat) Engage the claw and clip. Install the front seat cushion shield with the screw.
INSTALL RECLINING ADJUSTER RELEASE HANDLE Engage the claw and install the reclining adjuster release handle.
INSTALL VERTICAL ADJUSTING HANDLE (for Driver Seat) Install the vertical adjusting handle with the 2 screws.
INSTALL VERTICAL SEAT ADJUSTER KNOB CAP (for Driver Seat) Engage the 3 claws and install the vertical seat adjuster knob cap.
INSTALL VERTICAL SEAT ADJUSTER KNOB (for Driver Seat)

Scheme 95

Scheme 95: INSTALLATION

Scheme 96

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Scheme 98

Scheme 99

Scheme 100

INSTALL FRONT SEAT ASSEMBLY Place the front seat assembly in the vehicle and align the adjuster pin with the hole on the vehicle side. NOTE: When installing the passenger side front seat assembly, be careful not to step on the yaw rate sensor mounted on the floor under the seat. Connect the connector. Move the front seat assembly to the rearmost position by operating the slide handle. NOTE: Check that the seat is locked. Temporarily install the front seat track bracket with the 2 bolts. Move the front seat assembly fully forward by operating the slide handle. NOTE: Check that the seat is locked. Temporarily install the rear seat track bracket with the 2 bolts. Move the front seat assembly to the rearmost position by operating the slide handle. NOTE: Check that the seat is locked. Fully tighten the 2 bolts on the front seat track bracket in the order of the inner side bolt and then the outer side bolt. Torque: 37 N*m (377 kgf*cm, 27 ft.*lbf) Move the front seat assembly fully forward by operating the slide handle. NOTE: Check that the seat is locked. Fully tighten the 2 bolts on the rear seat track bracket in the order of the inner side bolt and then the outer side bolt. Torque: 37 N*m (377 kgf*cm, 27 ft.*lbf)
INSTALL REAR INNER SEAT TRACK BRACKET COVER LH Engage the 2 claws and install the rear inner seat track bracket cover.
INSTALL REAR OUTER SEAT TRACK BRACKET COVER LH Engage the 2 claws and install the rear outer seat track bracket cover.
INSTALL FRONT OUTER SEAT TRACK BRACKET COVER LH Engage the 2 claws and install the front outer seat track bracket cover.
INSTALL FRONT INNER SEAT TRACK BRACKET COVER LH Engage the 2 claws and install the front inner seat track bracket cover.
INSTALL FRONT SEAT HEADREST ASSEMBLY
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
PERFORM INITIALIZATION NOTE: Some systems need initialization when disconnecting the cable from the negative battery terminal (See «INITIALIZATION»(ref-235541-S32349848442006062400000) ).
INSPECT SLIDE ADJUSTER LOCK
INSPECT SRS WARNING LIGHT Check the SRS warning light (See «DIAGNOSIS SYSTEM»(ref-235542-S25406180262006062400000) )

Scheme 101

Scheme 101: COMPONENTS

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Scheme 105

Seat: Overview Lexus IS II