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Tài liệu kỹ thuật giúp tra cứu và hỗ trợ kỹ thuật viên sữa chữa hệ thống In the memory function, the memory switch operation signal is transferred from the power window regulator switch assembly (power window master switch) to the position control ECU and switch assembly (power seat control switch and ECU) via the multiplex communication line. Then, either the seat position is stored in memory or the previously stored seat position is recalled to set the appropriate seat position.
SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE–1 SE FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) PRECAUTION 1. GENERAL PRECAUTION (a) When using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur. 2. PRECAUTION OF DISCONNECTING BATTERY TERMINAL NOTICE: When disconnecting the negative (-) battery cable, initialize the following system(s) after the cable is reconnected. System Name See Procedure Lighting System (Adaptive Front-Lighting System) LI-17 Power Window Control System WS-12 Power Back Door System ED-33 Sliding Roof System RF-22 and RF-4 SE–2 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE PARTS LOCATION SEAT MEMORY SWITCH POWER WINDOW REGULATOR SWITCH ASSEMBLY (POWER WINDOW MASTER SWITCH) INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OUTER MIRROR CONTROL ECU ASSEMBLY (REMOTE CONTROL MIRROR ECU LH) -P/SEAT FUSE OUTER MIRROR CONTROL ECU ASSEMBLY MULTIPLEX TILT AND TELESCOPIC ECU (TILT AND TELESCOPIC ECU) (REMOTE CONTROL MIRROR ECU RH) (DRIVING POSITION MEMORY SWITCH) W/ MEMORY: B111865E01 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE–3 SE FRONT POWER SEAT LUMBAR SWITCH FRONT SEAT FRAME WITH ADJUSTER LUMBAR SUPPORT ADJUSTER ASSEMBLY POWER SEAT SWITCH FRONT SEAT FRAME WITH ADJUSTER FRONT SEAT FRAME WITH ADJUSTER FRONT SEAT FRAME WITH ADJUSTER FRONT SEAT FRAME WITH ADJUSTER FRONT SEAT FRAME WITH ADJUSTER (FRONT VERTICAL MOTOR) (FRONT VERTICAL MOTOR) (RECLINING MOTOR) (RECLINING MOTOR) (SLIDE MOTOR) (SLIDE MOTOR) (LIFTER MOTOR) (LIFTER MOTOR) FRONT SEAT FRAME WITH ADJUSTER POWER SEAT SWITCH FRONT SEAT FRAME WITH ADJUSTER B111866E01 SE–4 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE SYSTEM DESCRIPTION 1. GENERAL DESCRIPTION (a) The power seat control system is equipped with the following function: • The front seats are equipped with electric adjuster slide, reclining, lifter, front vertical and lumbar support adjustment functions. (b) The power seat control system (w/ memory) is equipped with the following functions: • Individual seat positions for two different drivers can be stored for the slide, reclining, front vertical and lifter. • Similarly, power mirror positions and tilt and telescopic positions for two different drivers can be stored. These are stored/restored together with the seat positions by pushing the seat memory switch. • The above operations are performed using the multiplex communication system. • As a safety precaution, the system does not allow seat position restoration unless the ignition switch is in the on position and the shift lever is in the P position. • Manual adjustment of the lumbar support function can be performed even when the position control ECU and switch assembly (power seat control switch and ECU) is not functional. When the power seat control switch is operated, a command signal is sent to the position control ECU and switch assembly (power seat control switch and ECU). The position control ECU and switch assembly (power seat control switch and ECU) then activates 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. The position control ECU and switch assembly (power seat control switch and ECU) is designed so that a malfunction of the seat memory system will not interfere with seat control. The seat memory switch also sends signals to the position control ECU and switch assembly (power seat control switch and ECU) to memorize a given seat position. Two seat positions can be memorized. The seat memory switch is later used to send signals to the position control ECU and switch assembly (power seat control switch and ECU) to return the seat to either of the memorized positions. SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE–5 SE 2. FUNCTION OF MAIN COMPONENT (w/ MEMORY) (a) The following functions are available. 3. SYSTEM OPERATION (a) The front power seats adjustment and position memory are shown in the chart below. In the memory function, the memory switch operation signal is transferred from the power window regulator switch assembly (power window master switch) to the position control ECU and switch assembly (power seat control switch and ECU) via the multiplex communication line. Then, either the seat position is stored in memory or the previously stored seat position is recalled to set the appropriate seat position. Components Function Seat slide motor Slides the driver side seat back and forth based on signals from the position control ECU and switch assembly (power seat control switch and ECU). Seat reclining motor Reclines the driver side seat back and forth based on signals from the position control ECU and switch assembly (power seat control switch and ECU). Seat front vertical motor Moves the front part of the driver side seat cushion up and down based on signals from the position control ECU and switch assembly (power seat control switch and ECU). Seat lifter motor Moves the driver side seat cushion up and down based on signals from the position control ECU and switch assembly (power seat control switch and ECU). This motor operates, and driver side seat rear vertical raises and lowers, and driver side seat rear vertical raises and lowers. Set switch Memory switch When the set and memory switches are pressed simultaneously, SET, 1 or 2 switch signal is input to the power window regulator switch assembly (power window master switch) and sends the seat memory switch signal via the multiplex communication system. When only the memory switch is pressed, SET, 1 or 2 switch signal is input to power window regulator switch assembly (power window master switch) and driver side seat position changes according to memory. Seat Adjustment Function Driver Side Front Passenger Side Slide Power and memory Power Reclining Power and memory Power Front Vertical Power and memory Power Lifter Power and memory Power Lumbar Support Power - SE–6 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE HOW TO PROCEED WITH TROUBLESHOOTING HINT: • Use this procedure to troubleshoot the front power seat control system. • The intelligent tester should be used in steps 3 and 5. NEXT NEXT (a) Use the intelligent tester to check for normal function of the multiplex communication system. (1) (Position control ECU and switch assembly (power seat control switch and ECU) not connected, communication line malfunctioning) If no code is output, proceed to A. (2) (Position control ECU and switch assembly (power seat control switch and ECU) not connected, communication line malfunctioning) If any code is output, proceed to B. B A (a) If the fault is not listed on the problem symptoms table, proceed to A. (b) If the fault is listed on the problem symptoms table, proceed to B. B A (a) DATA LIST/ACTIVE TEST (See page SE-11). (1) Inspection with the intelligent tester (DATA LIST). 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS CHECK AND PROBLEM SYMPTOM CHECK 3 CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN) Go to MULTIPLEX COMMUNICATION SYSTEM 4 PROBLEM SYMPTOMS TABLE Go to step 6 5 OVERALL ANALYSIS AND TROUBLESHOOTING SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE–7 SE (2) Inspection with the intelligent tester (ACTIVE TEST). (b) Terminals of ECU (See page SE-8). (c) Inspection. NEXT NEXT NEXT 6 ADJUST, REPAIR OR REPLACE 7 CONFIRMATION TEST END SE–8 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE PROBLEM SYMPTOMS TABLE HINT: • Inspect the fuse and relay before confirming the suspected areas in the table below. • Inspect each suspected area in numerical order for the corresponding symptom. If the malfunction still exists after checking and confirming that all circuits and components are normal, replace the ECU. 1. FRONT POWER SEAT CONTROL SYSTEM (w/o MEMORY) 2. FRONT POWER SEAT CONTROL SYSTEM (w/ MEMORY) Symptom Suspected area See page Power seat does not operate (slide, front vertical, lifter, reclining). 1. P/SEAT fuse - 2. Power seat switch SE-75 3. Wire harness or connector - Slide operation function only does not operate. 1. Power seat switch SE-75 2. Front seat frame with adjuster (LH side slide motor) SE-77 3. Front seat frame with adjuster (RH side slide motor) SE-78 4. Wire harness or connector - Front vertical operation function only does not operate. 1. Power seat switch SE-75 2. Front seat frame with adjuster (LH side front vertical motor) SE-77 3. Front seat frame with adjuster (RH side front vertical motor) SE-78 4. Wire harness or connector - Lifter operation function only does not operate. 1. Power seat switch SE-75 2. Front seat frame with adjuster (LH side lifter motor) SE-77 3. Front seat frame with adjuster (RH side lifter motor) SE-78 4. Wire harness or connector - Reclining operation function only does not operate. 1. Power seat switch SE-75 2. Front seat frame with adjuster (LH side reclining motor) SE-77 3. Front seat frame with adjuster (RH side reclining motor) SE-78 4. Wire harness or connector - Lumbar support operation function only does not operate (Driver side only). 1. Front power seat lumbar switch SE-80 2. Lumbar support adjuster assembly SE-81 3. Wire harness or connector - Symptom Suspected area See page Power seat does not operate (manual or memorized position). 1. ECU power source circuit SE-24 2. Position control ECU and switch assembly (power seat control switch and ECU) SE-39 One of the power seat functions does not operate (manual or memorized position). 1. Power seat motor circuit SE-16 2. Position control ECU and switch assembly (power seat control switch and ECU) SE-39 One or all manual seat functions do not operate (memorized positions OK). 1. Position control ECU and switch assembly (power seat control switch and ECU) SE-39 Memory function does not operate. 1. Memory switch circuit SE-20 2. Multiplex communication system MP-6 3. Position control ECU and switch assembly (power seat control switch and ECU) SE-39 No memory functions operate or all memory functions operate briefly and then stop (manual functions OK). 1. ECU power source circuit SE-24 2. Position control ECU and switch assembly (power seat control switch and ECU) SE-39 One memory function does not operate or operates briefly and then stops (manual functions OK). 1. Front seat frame with adjuster (power seat motor) SE-77 2. Position control ECU and switch assembly (power seat control switch and ECU) SE-39 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE–9 SE TERMINALS OF ECU 1. POSITION CONTROL ECU AND SWITCH ASSEMBLY (POWER SEAT CONTROL SWITCH AND ECU) (a) Disconnect the P32 and P33 connectors. (b) Check the voltage of each terminal of the wire harness side connectors. If the result is not as specified, there may be a malfunction in the wire harness side. (c) Check the resistance of each terminal of the wire harness side connectors. If the result is not as specified, there may be a malfunction in the wire harness side. (d) Reconnect the P32 and P33 connectors. (e) Check the voltage of each terminal of the connectors. Connector Front View: P33 P32 B066387E01 Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition IG(P32-4) - GND(P33-1) Y - W-B Ignition switch Ignition switch off → ignition switch on Below 1 V → 10 to 14 V SYSB(P32-8) - GND(P33- 1) GR - W-B Power source Always 10 to 14 V +B(P33-5) - GND(P33-1) LG - W-B Battery Always 10 to 14 V Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND(P33-1) - Body ground W-B - Body ground Ground Always Below 1 Ω Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition MPX1(P32-1) - GND(P33- 1) W - W-B Multiplex communication signal circuit Ignition switch on Pulse generation SLD+(P33-2) - GND(P33- 1) L - W-B Sliding motor signal (Forward) Seat moving forward using sliding switch → Other conditions 10 to 14 V → Below 1 V SLD-(P33-3) - GND(P33- 1) Y - W-B Sliding motor signal (Rearward) Seat moving rearward using sliding switch → Other conditions 10 to 14 V → Below 1 V FRV-(P33-4) - GND(P33- 1) B - W-B Front vertical motor signal (Downward) Seat cushion front portion lowering using front vertical switch → Other conditions 10 to 14 V → Below 1 V FRV+(P33-6) - GND(P33- 1) G - W-B Front vertical motor signal (Upward) Seat cushion front portion rising using front vertical switch → Other conditions 10 to 14 V → Below 1 V LFT+(P33-7) - GND(P33- 1) W - W-B Lifter motor signal (Upward) Seat rising using lifter switch → Other conditions 10 to 14 V → Below 1 V SE–10 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE If the result is not as specified, the position control ECU and switch assembly may be malfunctioning. 2. POWER WINDOW REGULATOR SWITCH ASSEMBLY (POWER WINDOW MASTER SWITCH) (a) Disconnect the P22 connector. (b) Check the voltage of each terminal of the wire harness side connectors. If the result is not as specified, there may be a malfunction in the wire harness side. (c) Check the resistance of each terminal of the wire harness side connector. If the result is not as specified, there may be a malfunction in the wire harness side. (d) Reconnect the P22 connector. (e) Check the voltage of each terminal of the connectors. RCL+(P33-8) - GND(P33- 1) P - W-B Reclining motor signal (Forward) Seatback moving forward using reclining switch → Other conditions 10 to 14 V → Below 1 V LFT-(P33-9) - GND(P33-1) V - W-B Lifter motor signal (Downward) Seat lowering using lifter switch → Other conditions 10 to 14 V → Below 1 V RCL-(P33-10) - GND(P33- 1) BR - W-B Reclining motor signal (Rearward) Seatback moving rearward using reclining switch → Other conditions 10 to 14 V → Below 1 V Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition 19 20 12 11 18 17 16 15 14 13 9 10 2 1 876543 Connector Front View: P22 B115721E02 Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition CPUB(P22-9) - GND(P22- 2) L-B - W-B Power source Always 10 to 14 V BDR(P22-10) - GND(P22- 2) G - W-B Power window motor power source Always 10 to 14 V SIG(P22-20) - GND(P22- 2) BR - W-B Ignition switch signal Ignition switch off → ignition switch on Below 1 V → 10 to 14 V Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND(P22-2) - Body ground W-B - Body ground Ground Always Below 1 Ω Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition MM(P22-3) - GND(P22-2) LG - W-B SET switch signal SET switch is not pushed → pushed 10 to 14 V → Below 1 V M1(P22-13) - GND(P22-2) G - W-B SW1 switch signal SW1 switch is not pushed → pushed 10 to 14 V → Below 1 V M2(P22-17) - GND(P22-2) V - W-B SW2 switch signal SW2 switch is not pushed → pushed 10 to 14 V → Below 1 V [...]... PROBLEM SYMPTOMS TABLE SE SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ o Memory) SE–27 FRONT POWER SEAT CONTROL SYSTEM (w/ o Memory) SEAT BODY PARTS LOCATION INSTRUMENT PANEL J/B ASSEMBLY - IG1 RELAY - ECU-IG NO 1 FUSE - P /SEAT M-FUSE SE B115090E01 SE–28 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ o Memory) SEAT MEMORY SWITCH FRONT SEAT FRAME WITH ADJUSTER (W/ MEMORY) (RECLINING MOTOR) FRONT SEAT FRAME WITH ADJUSTER... ASSEMBLY POWER SEAT SWITCH FRONT SEAT FRAME WITH ADJUSTER (SLIDE MOTOR) FRONT POWER SEAT LUMBAR SWITCH FRONT SEAT FRAME WITH ADJUSTER (LIFTER MOTOR) POWER SEAT SWITCH FRONT SEAT FRAME WITH ADJUSTER SE (SLIDE MOTOR) FRONT SEAT FRAME WITH ADJUSTER (FRONT VERTICAL MOTOR) B115091E01 SE–29 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ o Memory) PROBLEM SYMPTOMS TABLE FRONT POWER SEAT CONTROL SYSTEM (w/ o Memory). .. operates SE–31 SEAT – SEAT HEATER SYSTEM SEAT HEATER SYSTEM SEAT BODY PARTS LOCATION FRONT SEATBACK HEATER (FRONT SEATBACK HEATER RH) FRONT SEAT CUSHION HEATER INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY -SEAT HTR FUSE (FRONT SEAT CUSHION HEATER RH) SEAT HEATER SWITCH FRONT SEAT CUSHION HEATER (FRONT SEAT CUSHION HEATER LH) SEAT HEATER CONTROL (FRONT SEAT HEATER CONTROL RH) SEAT HEATER CONTROL FRONT SEATBACK... or more, the system will stop the motor until the switch is turned on again SE SE–19 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) WIRING DIAGRAM Position Control ECU and Switch Assembly (Power Seat Control Switch and ECU) Power Seat Motor (Slide Control) SLD+ SLDPower Seat Motor (Lifter Control) LFT+ LFTPower Seat Motor (Reclining Control) RCL+ RCLPower Seat Motor (Front Vertical Control) FRV+... SE SE–18 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) Power Seat Motor Circuit DESCRIPTION When the power seat control switch is operated, a command signal is sent to the position control ECU and switch assembly (power seat control switch and ECU) The front power seat switch then controls the appropriate seat motor as needed This memory system does not use a seat position sensor The seat position.. .SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE–11 If the result is not as specified, the power window regulator switch assembly may be malfunctioning SE SE–12 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) DIAGNOSIS SYSTEM 1 2 CG DESCRIPTION (a) Front power seat control system data can be read through the Data Link Connector 3 (DLC3) of the vehicle When the system seems to... MOTOR) (a) Inspect the power seat motor (See page SE-77) OK: The power seat motor operates NG OK SE REPLACE FRONT SEAT ADJUSTER SUBASSEMBLY (POWER SEAT MOTOR) SE–21 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) 3 CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY - POWER SEAT MOTOR) (a) Disconnect the position control ECU and switch assembly connector and power seat motor connectors... torque B112104E01 SE–34 SEAT – FRONT SEAT ASSEMBLY SEPARATE TYPE FRONT SEAT CUSHION COVER HOG RING SEPARATE TYPE FRONT SEAT CUSHION PAD FRONT SEAT CUSHION SHIELD INNER FRONT SEAT CUSHION SHIELD INNER NO.1 FRONT SEAT CUSHION SHIELD for Driver Seat: 42 (428, 31) POWER SEAT SWITCH ASSEMBLY FRONT POWER SEAT SWITCH SE FRONT SEAT INNER BELT ASSEMBLY SLIDE AND VERTICAL POWER SEAT SWITCH KNOB N*m (kgf*cm, ft.*lbf)... seats are controlled by the seat heaters Which are located under the respective seat SE–33 SEAT – FRONT SEAT ASSEMBLY FRONT SEAT ASSEMBLY SEAT BODY COMPONENTS SEAT TRACK COVER RH FRONT SEAT ASSEMBLY 37 (377, 27) 37 (377, 27) 37 (377, 27) SEAT TRACK COVER LH SEAT TRACK BRACKET COVER OUTER FRONT LH SE SEAT TRACK BRACKET COVER INNER FRONT LH N*m (kgf*cm, ft.*lbf) : Specified torque B112104E01 SE–34 SEAT. .. condition: stopped - SE SE–16 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) ON-VEHICLE INSPECTION Reclining Function 1 CHECK POWER SEAT FUNCTION (a) Check the basic functions (1) Operate the power seat switches and check the following seat functions: • Sliding • Reclining • Front vertical • Lifter • Lumbar support (Driver side seat only) 2 CHECK POWER SEAT MOTOR ASSEMBLY (SLIDING, FRONT VERTICAL, LIFTER . MEMORY: B111865E01 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE–3 SE FRONT POWER SEAT LUMBAR SWITCH FRONT SEAT FRAME WITH ADJUSTER LUMBAR SUPPORT ADJUSTER ASSEMBLY POWER SEAT SWITCH FRONT SEAT FRAME WITH. MOTOR) (LIFTER MOTOR) (LIFTER MOTOR) FRONT SEAT FRAME WITH ADJUSTER POWER SEAT SWITCH FRONT SEAT FRAME WITH ADJUSTER B111866E01 SE–4 SEAT – FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) SE SYSTEM. except P - M2 SW Seat memory M2 switch signal/ ON or OFF ON: Seat memory M2 switch is ON OFF: Seat memory M2 switch is OFF - M1 SW Seat memory M1 switch signal/ ON or OFF ON: Seat memory M1 switch