INFINITI QX56 AUTOMATIC DRIVE POSITIONERPRECAUTIONS Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" INFOID:0000000006222027 The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this Service Manual. WARNING: • To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision that would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer. • Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the “SRS AIR BAG”. • Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors. PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS WARNING: • When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. • When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service. 7. ABS actuator and electric unit (control unit) Refer to BRC-10, "Component Parts Location" (With VDC) Refer to BRC-134, "Component Parts Location" (With BRAKE ASSIST) Refer to BRC-141, "Component Parts Location" (With INTELLIGENT BRAKE ASSIST) 8. Door mirror remote control switch 9. Seat memory switch 10. Sliding, lifting switch 11. Reclining switch 12. Driver side door switch 13. Door mirror (driver side) 14. Tilt motor 15. Telescopic motor 16. Automatic drive positioner control unit 17. Lifting motor (rear) 18. Diver seat control unit 19. Lifting motor (front) 20. Sliding motor 21. Reclining motor A. View with steering column cover lower removed B. View with instrument lower panel LH removed C. View with seat cushion pad and seat back pad removed D. Backside of seat cushion E. View with seat cushion pad and seat back pad removed Component parts Description Driver seat control unit • Main units of automatic drive positioner system. • It is connected to the CAN. • It communicates with automatic drive positioner control unit via UART communication. • It perform memory function after receiving the door unlock signal from BCM. • The address of each part is recorded. • Operates each motor of seat to the registered position. • Requests the operation of steering column and door mirror to automatic drive positioner control unit • Operates the specific seat motor with the signal from power seat switch. • Transmits the ignition switch signal (ACC/ON) via UART communication to automatic driver positioner control unit. Automatic drive positioner control unit • It communicates with driver seat control unit via UART communication. • Perform various controls with the instructions of driver seat control unit. • Perform the controls of tilt & telescopic, door mirror and seat memory switch. • Operates steering column and door mirror with the signal from the driver seat control BCM Recognizes the following status and transmits it to driver seat control unit via CAN communication. • Handle position: LHD • Driver door: OPEN/CLOSE • Ignition switch position: ACC/ON • Steering lock unit status: LOCK/UNLOCK • Door lock: UNLOCK (with Intelligent key or driver side door request switch operation) • Key ID • Starter: CRANKING/OTHER IPDM E/R ON/OFF signal of A/T shift selector (detention switch) is transmitted to driver seat control unit via CAN communication. TCM The following signals are transmitted to driver seat control unit via CAN communication. • Shift position signal (P range) • Identification of transmission: A/T Unified meter and A/C amp. Transmit the vehicle speed signal to driver seat control unit via CAN communication. ABS actuator and electric unit (control unit) Transmit the vehicle speed signal to driver seat control unit via CAN communication. A/T sift selector (Detention switch) • Detention switch is installed on A/T shift selector. It is turned OFF when A/T shift selector is in P position. • Driver seat control unit judges that A/T shift selector is in P position if continuity does not exist in this circuit. Door mirror remote control switch Mirror switch • Mirror switch is integrated in door mirror remote control switch. • It operates angle of door mirror face. • It transmits mirror face adjust operation to automatic drive positioner control unit. Changeover switch • Changeover switch is integrated in door mirror remote control switch. • Changeover switch has three positions (L, N and R). • It changes operating door mirror motor by transmitting control signal to automatic drive positioner control unit. Open/close switch • Open/close switch is integrated in door mirror remote control switch. • Power is supplied to folding mirror from door mirror remote control switch when operating switch. Tilt & telescopic switch Tilt switch • Tilt switch is equipped to steering column. • The operation signal is input to automatic drive positioner control unit when tilt switch is operated. Telescopic switch • Telescopic switch is equipped to steering column. • The operation signal is input to automatic drive positioner control unit when telescopic switch is operated. Seat memory switch Set switch It is used for registration and setting change of driving position and Intelligent Key interlock function. Seat memory switch • The maximum 2 driving positions can be registered by memory switch 1 to 2. • Driving position is set to the registered driving position when memory switch is pressed while operation conditions are satisfied. Seat memory indicator Memory indicator indicates the status of auto driving position system by turning ON or blinking. Power seat switch Sliding switch • Sliding switch is equipped to power seat switch on seat cushion side surface. • The operation signal is input to driver seat control unit when sliding switch is operated. Reclining switch • The operation signal is input to driver seat control unit when reclining switch is operated. • The operation signal is input to driver seat control unit when reclining switch is operated. Lifting switch (front) • Lifting switch (front) is equipped to power seat switch on seat cushion side surface. • The operation signal is input to driver seat control unit when lifting switch (front) is operated. Lifting switch (rear) • Lifting switch (rear) is equipped to power seat switch on seat cushion side surface. • The operation signal is input to driver seat control unit when lifting switch (rear) is operated. Door mirror motor It makes mirror face operate from side to side and up and down with the electric power that automatic drive positioner control unit supplies. Mirror sensor • Mirror sensor is installed to door mirror. • The resistance of 2 sensors (horizontal and vertical) is changed when door mirror is operated. • Automatic drive positioner control unit calculates door mirror position according to the change of the voltage of 2 sensor input terminals. Tilt motor Tilt motor • Tilt motor is installed to steering column assembly. • Tilt motor is activated with automatic drive positioner control unit. • Steering column is tilted upward/downward by changing the rotation direction of tilt motor. Tilt sensor • Tilt sensor is integrated in tilt motor. • The resistance of tilt sensor is changed according to the up/ down position of steering column. • The terminal voltage of automatic drive positioner control unit will be changed according to a change of tilt sensor resistance. • Automatic drive positioner control unit calculates the tilt position from the voltage. Telescopic motor Telescopic motor • Telescopic motor is installed to steering column assembly. • Telescopic motor is activated with automatic drive positioner control unit. • Compresses steering column by changing the rotation direction of telescopic motor. Telescopic sensor • Telescopic sensor is integrated in telescopic motor. • The resistance of telescopic sensor is changed according to the forward/backward position of steering column. • The terminal voltage of automatic drive positioner control unit will be changed according to a change of telescopic sensor resistance. • Automatic drive positioner control unit calculates the telescopic position from the voltage. Sliding motor Sliding motor • Seat sliding motor is installed to the seat cushion frame. • Seat sliding motor is activated with driver seat control unit. • Slides the seat frontward/ rearward by changing the rotation direction of sliding motor. Sliding sensor • Sliding sensor is integrated in sliding motor. • The pulse signal is input to driver seat control unit when sliding is performed. • Driver seat control unit counts the pulse and calculates the sliding amount of the seat. Reclining motor Reclining motor • Seat reclining motor is installed to seat back frame. • Seat reclining motor is activated with driver seat control unit. • Seatback is reclined frontward/rearward by changing the rotation direction of reclining motor. Reclining sensor • Reclining sensor is integrated in reclining motor. • The pulse signal is input to driver seat control unit when the reclining is operated. • Driver seat control unit counts the pulse and calculates the reclining amount of the seat. Lifting motor (front) Lifting motor (front) • Lifting motor (front) is installed to seat side cushion frame. • Lifting motor is activated with driver seat control unit. • Seat lifter (front) is moved upward/downward by changing the rotation direction of lifting motor (front). Lifting sensor (front) • Lifting sensor (front) is installed in lifting motor (rear). • When lifting motor (rear) operates, pulse signal is transmitted to driver seat control unit from lifting sensor. Driver seat control unit counts the pulse and calculates the lift position (rear) of the seat. Lifting motor (rear) Lifting motor (rear) • Lifting motor (rear) is installed to seat slide cushion frame. • Lifting motor (rear) is activated with driver seat control unit. • Seat lifter (rear) is moved upward/downward by changing the rotation direction of lifting motor (rear). Lifting sensor (rear) • Lifting sensor (rear) is installed to seat side cushion frame. • The pulse signal is input to driver seat control unit when lifting (rear) is operated. • Driver seat control unit counts the pulse and calculates the lifting (rear) amount of the seat. |
