Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
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 AIRBAG (CONVERTIBLE) and SEAT BELT (CONVERTIBLE) of this Service Information.
| WARNING | Always observe the following items for preventing accidental activation. 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 " SRS AIR BAG ". Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Information. 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 | Always observe the following items for preventing accidental activation. When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition ON or engine running, never 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. |
Precaution for Battery Service
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interference between the window edge and the vehicle when the door is opened/closed. During normal operation, the window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic window function will not work with the battery disconnected.
Service Procedure Precautions for Models with a Pop-up Roll Bar
| WARNING | Always observe the following items for preventing accidental activation. Risk of passenger injury or death may increase if the pop-up roll bar does not deploy during a roll over collision. In order to reduce the chance of an incident where the pop-up roll bar is inoperative, all maintenance must be performed by a NISSAN or INFINITI dealer. Before removing and installing the pop-up roll bar component parts and harness, always turn the ignition switch OFF, disconnect the battery negative terminal, and wait for 3 minutes or more. (The purpose of this operation is to discharge electricity that is accumulated in the auxiliary power supply circuit in the air bag diagnosis sensor unit.) When repairing, removing, and installing a pop-up roll bar, always refer to SRS AIRBAG (CONVERTIBLE) and SRS AIRBAG CONTROL SYSTEM (CONVERTIBLE) warnings in the Service Information. |
Scheme 21
| Component | Description |
|---|---|
| SONAR CONTROL UNIT | An integrated warning buzzer sounds when receiving a sensor signal from the corner/center sensor. The sonar system starts when receiving a reverse signal. Converts a signal received from the corner sensor and the center sensor into a distance signal (center sensor: four levels, corner sensor: three levels) to transmit it to the AV control unit via AV communication. The sonar system turns OFF when receiving a sonar cancel switch signal. Capable of system settings and trouble diagnoses with CONSULT (K-LINE). |
| CORNER SENSOR REAR (LH, RH) | When a distance from an obstacle is detected, a distance signal is transmitted to the sonar control unit. |
| CENTER SENSOR REAR (LH, RH) | When a distance from an obstacle is detected, a distance signal is transmitted to the sonar control unit. |
| SONAR CANCEL SWITCH | The sonar cancel switch signal is transmitted to the sonar control unit. |
| AV CONTROL UNIT | An image on the display is switched between the AV control unit and the display unit via serial communication. An RGB image signal is transmitted to the AV control unit. |
| DISPLAY UNIT | An RGB image signal is transmitted from the AV control unit. An image on the display is switched between the AV control unit and the display unit via serial communication. |
| Component | Description |
|---|---|
| SONAR CONTROL UNIT | Converts a signal received from the corner sensor and the center sensor into a distance signal (center sensor: four levels, corner sensor: three levels) to transmit it to the AV control unit via AV communication. The sonar system starts when receiving a reverse signal. The sonar system turns OFF when receiving a sonar cancel switch signal. Capable of system settings and trouble diagnoses with CONSULT (K-LINE). |
| CORNER SENSOR REAR (LH, RH) | When a distance from an obstacle is detected, a distance signal is transmitted to the sonar control unit. |
| CENTER SENSOR REAR (LH, RH) | When a distance from an obstacle is detected, a distance signal is transmitted to the sonar control unit. |
| SONAR CANCEL SWITCH | The sonar cancel switch signal is transmitted to the sonar control unit. |
| AV CONTROL UNIT | An image on the display is switched between the AV control unit and the display unit via serial communication. Transmits an RGB digital image signal to the display unit and a sound signal (buzzer) to the BOSE amp., based on the signal received from the sonar control unit via AV communication. |
| DISPLAY UNIT | An RGB digital image signal is transmitted from the AV control unit. An image on the display is switched between the AV control unit and the display unit via serial communication. |
| BOSE AMP. | Receives a sound signal (buzzer) from the AV control unit and transmits the signal to the driver headrest speaker (LH, RH). |
| DRIVER HEADREST SPEAKER (LH, RH) | Receives a sound signal (buzzer) from the AV control unit to allow the buzzer to sound. |
Scheme 22
Scheme 23
- The sonar sensor installed to the rear bumper detects obstacles around the rear bumper.
- When the rear corner sensor or the rear center sensor detects an obstacle during rear view monitor indication, the buzzer built in the sonar control unit sounds and the location of the obstacle is indicated on the display unit by displaying an icon.
- Sonar system turns ON/OFF with the sonar cancel switch.
- The sonar control unit is connected to the AV control unit via the AV communication.
- The sonar control unit is connected to the diagnosis connector via K-Line and allows diagnoses with CONSULT.
- The sonar sensor installed to the rear bumper detects obstacles around the rear bumper.
- When the rear corner sensor or the rear center sensor detects an obstacle during rear view monitor indication, the buzzer sounds via each speaker and the location of the obstacle is indicated on the display unit by displaying an icon.
- Sonar system turns ON/OFF with the sonar cancel switch.
- The sonar control unit is connected to the AV control unit via the AV communication.
- Sonar control unit is connected to the diagnosis connector via K-Line and allows diagnoses with CONSULT.
- The cycle of buzzer changes according to the distance from an obstacle: the center sensor, in four levels; the corner sensor, in three levels.
- Each sonar sensor transmits a sensor signal to the sonar control unit when detecting an obstacle.
- When receiving a sensor signal, the buzzer built in the sonar control unit sounds if an obstacle is detected on the rear side of the vehicle.
- The cycle of buzzer changes according to the distance from an obstacle: the center sensor, in four levels; the corner sensor, in three levels.
- Each sonar sensor transmits a sensor signal to the sonar control unit when detecting an obstacle.
- The sonar control unit converts a signal received from each sonar sensor into a distance signal (center sensor: four levels, corner sensor: three levels) and transmits it to the AV control unit via AV communication.
- The AV control unit transmits a sound signal (buzzer) to the BOSE amp. when receiving a distance signal from the sonar control unit.
- When receiving a sound signal (buzzer), the BOSE amp. transmits the sound signal (buzzer) to each speaker.
- When each speaker receives a sound signal (buzzer), buzzer sounds.
- When the rear center sensor or the rear corner sensor detects an obstacle, a buzzer is heard from the speakers on the rear side.
Scheme 24
- Detecting an obstacle when in reverse gear, the direction and the distance to the obstacle are displayed on the rear view monitor with icons.
- The color and the number of blinks of the sonar indicator changes, according to the distance to an obstacle (during icon indication).
- The sonar display function can be turned ON/OFF from "SETTING" of "Other". In this case, buzzer sounds by turning OFF the display function.
- Each sonar sensor transmits a sensor signal to the sonar control unit when detecting an obstacle.
- The sonar control unit converts a signal received from each sonar sensor into a distance signal (center sensor: four levels, corner sensor: three levels) and transmits it to the AV control unit via AV communication.
- The AV control unit transmits an RGB image signal to the display unit, based on the received signal. (Without navigation)
- The AV control unit transmits an RGB digital image signal to the display unit, based on the received signal. (With navigation)
- When receiving an RGB image signal, the display unit indicates "Icon display." (Without navigation)
- When receiving an RGB digital image signal, the display unit indicates "Icon display." (With navigation)
- Warning indications of the sonar system on the display are generated by the AV control unit.
ACTIVATION CONDITION
The rear sensor activates under the following conditions
- Sonar cancel switch OFF
- Reverse position
- During obstacle detection
| X: applicable | ||
|---|---|---|
| Sonar cancel switch | Reverse signal | Sonar sensor |
| OFF | ON | X (1) |
| OFF | OFF | |
| NOTE: (1) When the rear sensors simultaneously detect different obstacle: The sonar sensor detecting shorter distance from the object has priority to sound a buzzer. | ||
| NOTE |
|---|
| (1) When the rear sensors simultaneously detect different obstacle: The sonar sensor detecting shorter distance from the object has priority to sound a buzzer. |
| (1) | When the rear sensors simultaneously detect different obstacle |
OBSTACLE DETECTION DISTANCE
- The sonar control unit controls the obstacle detection distance. The detection distance differs between the corner sensor and the center sensor.
- The sonar control unit controls a warning buzzer cycle which changes in 4 levels (for center) or in 3 levels (for corner), according to the detection distance.
- The detection condition setting is adjustable in 4 levels with CONSULT. Refer to " «CONSULT FUNCTION»(ref-659809-S16940534762014100100000) ".
- CONSULT enables the center sensor (rear) not to detect the range of 40 cm (15.75 in) or less to prevent from the trailer hitch vehicle detection error. Refer to " «CONSULT FUNCTION»(ref-659809-S16940534762014100100000) ".
Scheme 25
| Warning item | Corner sensor | Center sensor |
|---|---|---|
| First warning | 60 - 100 cm (23.6 - 39.3 in) | |
| Second warning | 50 - 60 cm (19.6 - 23.6 in) | 50 - 60 cm (19.6 - 23.6 in) |
| Third warning | 30 - 50 cm (11.8 - 19.6 in) | 30 - 50 cm (11.8 - 19.6 in) |
| Fourth warning | Less than 30 cm (11.8 in) | Less than 30 cm (11.8 in) |
DETECTION DISTANCE (DEFAULT VALUE)
Warning Buzzer Frequency
Scheme 26
- The warning buzzer cycle changes between 4 levels (for rear center) and 3 levels (for rear corner), according to the detection distance.
- The nearest sensor from the detected obstacle determines the buzzer cycle if plural sensors simultaneously detect obstacles.
Note. The warning buzzer of the corner sensor sounds as follows: As for the second and third stages, the warning buzzer sounds for 3 seconds at maximum. As for the fourth stage, the warning buzzer does not stop even after a lapse of 3 seconds. Buzzer stops when the vehicle moves away from an obstacle and the warning level decreases.
Fail-Safe
The warning buzzer function shuts off and the cancel switch indicator blinks when the sensor system error is detected.
Scheme 27
DATA MONITOR
Note. The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.
| Monitor Item | Display | Description |
|---|---|---|
| REAR BUZZER | On | Buzzer output condition. |
| Off | Buzzer non-output condition. | |
| REVERSE RANGE | On | Shift the selector lever to R position. |
| Off | Shift the selector lever other than R position. | |
| CANCEL SW | On | While pressing the sonar cancel switch. |
| Off | Other than above. | |
| CANCEL SW IND | On | When sonar cancel switch indicator lamp is ON. |
| Blink | When sonar cancel switch indicator lamp is blinking. | |
| Off | When sonar cancel switch indicator lamp is OFF. | |
| CR SEN [RL] CR SEN [RR] | ERROR | When a sensor is abnormal. |
| LV.0 | When a sensor is not detection. | |
| LV.2 | The distance between the center sensor and an obstacle is 50 cm (19.6 in) or more and less then 60 cm (23.6 in). | |
| LV.3 | The distance between the center sensor and an obstacle is 30 cm (11.8 in) or more and less then 50 cm (19.6 in). | |
| LV.4 | The distance between center sensor and an obstacle less than 30 cm (11.8 in). | |
| CTR SEN [RL] CTR SEN [RR] | ERROR | When a sensor is abnormal. |
| LV.0 | When a sensor is not detection. | |
| LV.1 | The distance between the center sensor and an obstacle is 60 cm (23.6 in) or more and less then 100 cm (39.3 in). | |
| LV.2 | The distance between the center sensor and an obstacle is 50 cm (19.6 in) or more and less then 60 cm (23.6 in). | |
| LV.3 | The distance between the center sensor and an obstacle is 30 cm (11.8 in) or more and less then 50 cm (19.6 in). | |
| LV.4 | The distance between center sensor and an obstacle less than 30 cm (11.8 in). | |
| DISPLAY INFO | On | Icon display indication condition. |
| Off | Icon display non-indication condition. |
WORK SUPPORT
| Work support item | Function |
|---|---|
| CORNER SEN DISTANCE SET | Corner sensor warning buzzer distance is adjustable to 4 phases. |
| CENTER SEN DISTANCE SET | Center sensor warning buzzer distance is adjustable to 4 phases. |
| VOLUME SETTING (1) | Warning buzzer volume can set it 2 phases. |
| TRAILER HITCH MODE | Center sensor (RR, RL) only is adjustable not to detect the distance less than 40 cm (15.7 in). NOTE: This adjustment is for preventing to miss detect the distance when installing the trailer hitch. |
| (1) Without navigation models | |
| NOTE |
|---|
| This adjustment is for preventing to miss detect the distance when installing the trailer hitch. |
| (1) | Without navigation models |
CORNER SEN DISTANCE SET
Corner sensor warning buzzer distance can set it to 4 phases as follows.
| Warning item | FARTHER | FAR | NORMAL (Default) | NEAR |
|---|---|---|---|---|
| Second stage warning | 70 - 80 cm (27.5 - 31.4 in) | 60 - 70 cm (23.6 - 27.5 in) | 50 - 60 cm (19.6 - 23.6 in) | 40 - 50 cm (15.7 - 19.6 in) |
| Third stage warning | 50 - 70 cm (19.6 - 27.5 in) | 40 - 60 cm (15.7 - 23.6 in) | 30 - 50 cm (11.8 - 19.6 in) | 30 - 40 cm (11.8 - 15.7 in) |
| Fourth stage warning | Less than 50 cm (19.6 in) | Less than 40 cm (15.7 in) | Less than 30 cm (11.8 in) | Less than 30 cm (11.8 in) |
The default of this model is "NORMAL".
CENTER SEN DISTANCE SET
Center sensor warning buzzer distance can set it to 4 phases as follows.
| Warning item | FARTHER | FAR | NORMAL (Default) | NEAR |
|---|---|---|---|---|
| First stage warning | 80 - 120 cm (31.4 - 47.2 in) | 70 - 110 cm (27.5 - 43.3 in) | 60 - 100 cm (23.6 - 39.3 in) | 50 - 90 cm (19.6 - 35.4 in) |
| Second stage warning | 70 - 80 cm (27.5 - 31.4 in) | 60 - 70 cm (23.6 - 27.5 in) | 50 - 60 cm (19.6 - 23.6 in) | 40 - 50 cm (15.7 - 19.6 in) |
| Third stage warning | 50 - 70 cm (19.6 - 27.5 in) | 40 - 60 cm (15.7 - 23.6 in) | 30 - 50 cm (11.8 - 19.6 in) | 30 - 40 cm (11.8 - 15.7 in) |
| Fourth stage warning | Less than 50 cm (19.6 in) | Less than 40 cm (15.7 in) | Less than 30 cm (11.8 in) | Less than 30 cm (11.8 in) |
The default of this model is "NORMAL".
VOLUME SETTING
Warning buzzer volume can set it to 2 phases.
TRAILER HITCH MODE
Center sensor (RR, RL) only is adjustable not to detect the distance less than 40 cm (15.7 in).
When installing the trailer hitch: ON
When not installing the trailer hitch: OFF
PHYSICAL VALUES
Terminal No. (Wire color) Description Condition Value (Approx.) + - Signal name Input/Output 1 (G) Ground Ignition signal Input Ignition switch ON - 12.0 V 2 (SB) Ground Sonar cancel switch signal Input Ignition switch ON Turns ON while pressing sonar cancel switch ON. 2.0 V Other than while pressing sonar cancel switch ON. 12.0 V 5 (LG) 12 (V) Corner sensor signal rear LH Input Ignition switch ON Shift position in reverse position. 6 (L) 12 (V) Corner sensor signal rear RH Input Ignition switch ON Selector lever in reverse position. 7 (BR) 12 (V) Center sensor signal rear LH Input Ignition switch ON Selector lever in R position. 8 (GR) 12 (V) Center sensor signal rear RH Input Ignition switch ON Selector lever in R position. 11 (BR) Ground Sonar cancel switch indicator signal Output Ignition switch ON Sonar system ON 12.0 V Sonar system OFF 0 V 13 (LG) Ground ACC power supply Input Ignition switch ACC - Battery voltage 17 (BG) Ground Reverse range signal Input Ignition switch ON Shift position in R position. 12.0 V Other than shift position in R position. 0 V 18 (V) - K-line (CONSULT) - - - - 19 (SB) - AV communication signal (H) Input/Output - - - 20 (LG) - AV communication signal (L) Input/Output - - - 24 (GR) Ground Ground - Ignition switch ON - 0 V
Scheme 28
The warning buzzer function shuts off and the cancel switch indicator blinks when the sensor system error is detected.
DETAILED FLOW
- INTERVIEW AND SYMPTOM CONFIRMATION Check the malfunction symptoms by performing the following items. Interview the customer to obtain the malfunction information (conditions and environment when the malfunction occurred). Check if mud, or other foreign objects are not on sonar sensor. Check if there is no deformation, scratches, or other damage to the sonar sensor. Check if water has not accumulated in the sonar sensor. Check the symptom. Is the occurred symptom malfunction? YES: GO TO 2. NO: INSPECTION END
- DIAGNOSIS WITH CONSULT Connect CONSULT and perform a self-diagnosis for "SONAR". Refer to " «CONSULT FUNCTION»(ref-659809-S16940534762014100100000) ". When DTC is detected, follow the instructions below: Record DTC and Freeze Frame Data. Is DTC displayed? YES: GO TO 3. NO: GO TO 4 .
- TROUBLE DIAGNOSIS FOR DTC Check the DTC indicated in the self-diagnosis results. Perform the relevant diagnosis referring to the DTC Index. Refer to " «DTC INDEX»(ref-659809-S26668951802014100100000) ". : GO TO 5 .
- TROUBLE DIAGNOSIS FOR SYMPTOMS Perform the relevant diagnosis referring to the diagnosis chart by symptom. Refer to " «SYMPTOM TABLE»(ref-659809-S14545078772014100100000) ". : GO TO 5.
- ERROR PART REPAIR Repair or replace the identified malfunctioning parts. Perform a self-diagnosis for "SONAR" with CONSULT. Check that the symptom does not occur. Does the symptom occur? YES: GO TO 1 . NO: INSPECTION END
Component Function Check
- SONAR CONTROL UNIT DATA MONITOR INSPECTION Check "REVERSE RANGE" with "DATA MONITOR" of "SONAR". REVERSE RANGE Vehicle condition Indication Shift position in R position: On Other than shift position in R position: Off : INSPECTION END
- SONAR CONTROL UNIT DATA MONITOR INSPECTION Check "CANCEL SW" with "DATA MONITOR" of "SONAR". Cancel switch Vehicle condition Indication While pressing the sonar cancel switch: On Other than above: Off : INSPECTION END