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 dual stage front air bag modules. The SRS system may only deploy one front air bag, depending on the severity of a collision and whether the front passenger seat is occupied. Information necessary to service the system safely is included in the SRS AIRBAG SYSTEM (EXCEPT HYBRID) and SEAT BELTS (EXCEPT HYBRID) article of this Service Information.
| WARNING | To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which 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 AIRBAG SYSTEM . Do not 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 | When working near the Airbag Diagnosis Sensor Unit or other Airbag 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. |
Special Service Tool
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number (Kent-Moore No.) Tool name Description - (J-46534) Trim Tool Set Removing trim components
Scheme 48
Infiniti Drive Mode Selector
- All the vehicles are equipped with an INFINITI drive mode selector which switches a vehicle mode among STANDARD, SPORT, ECO, and SNOW with the flick of a switch.
- The Infiniti drive mode selector changes a vehicle mode to the engine (including ECO pedal), transmission, and the active trace control function.
Scheme 49
| No. | Part | Description |
|---|---|---|
| 1 | Combination meter | Displays a mode state on the vehicle information display, based on the mode state received from the A/C auto amp. For details of installation position, refer to " METER SYSTEM: COMPONENT PARTS LOCATION ". |
| 2 | ABS actuator and electric unit | Activates the ABS actuator, according to an active trace control function control signal received from the ADAS control unit. For details of installation position, refer to " COMPONENT PARTS LOCATION ". |
| 3 | TCM | Selects a shift pattern, based on a mode state received from the A/C auto amp. Transmits a mode state received from the A/C auto amp. to ECM. For details of installation position, refer to " CVT CONTROL SYSTEM: COMPONENT PARTS LOCATION ". |
| 4 | ECM | Receives a mode signal from TCM and controls throttle angle characteristics. For details of installation position, refer to " ENGINE CONTROL SYSTEM: COMPONENT PARTS LOCATION ". |
| 5 | A/C auto amp. | Receives an ON/OFF state of each mode from the drive mode select switch and transmits the switch signal to TCM, combination meter and ADAS control unit via CAN communications. For details of installation position, refer to " FRONT AUTOMATIC AIR CONDITIONING SYSTEM: COMPONENT PARTS LOCATION ". |
| 6 | ADAS control unit | Controls the active trace control function, based on a mode state received from the A/C auto amp. Controls accelerator pedal reaction force of the accelerator pedal actuator, based on a ECO pedal reaction force control signal received from ECM. For details of installation position, refer to " COMPONENT PARTS LOCATION ". |
| 7 | Accelerator pedal actuator | Applies reaction force to the accelerator pedal, based on an accelerator pedal reaction force control signal received from the ADAS control unit. |
| 8 | Drive mode select switch | Outputs an ON/OFF state of STANDARD, SPORT, ECO, or SNOW mode to the A/C auto amp. |
Scheme 50
- 4-contact rotary type drive mode select switch is set on the upper part of the center console.
- Being connected to A/C auto amp., this switch allows to select STANDARD, SPORT, ECO, or SNOW mode.
Scheme 51
- The A/C auto amp. receives an operational state of the drive mode select switch and transmits a mode signal (See below.) to each unit via CAN communications. STANDARD: ON/OFF SPORT: ON/OFF ECO: ON/OFF SNOW: ON/OFF
- TCM transmits a mode state to ECM and ADAS control unit via CAN communications, based on a mode signal received from the A/C auto amp.
- ECM transmits an ECO pedal control signal to the ADAS control unit via CAN communications.
- The ADAS control unit controls pedal reaction force of the accelerator pedal actuator via ITS communications, based on an ECO pedal control signal received from ECM.
- The ADAS control unit receives a mode signal from the A/C auto amp. and changes the characteristics of the active trace control function via CAN communications with the ABS actuator and electric unit.
ENGINE TRANSMISSION CONTROL
- For further information on engine control, refer to " «INFINITI DRIVE MODE SELECTOR: SYSTEM DESCRIPTION»(ref-657660-S29095006312014092100000) ".
- For further information on transmission control, refer to " «INFINITI DRIVE MODE SELECTOR: SYSTEM DESCRIPTION»(ref-657661-S00191353502014092100000) ".
ECO DRIVE INDICATOR
- This system supports ECO driving by controlling the ECO drive indicator lamp in the combination meter, according to an accelerator pedal depression during ECO mode.
- The ECO drive indicator lamp changes depending on the state of the fuel-efficient region, fuel-efficient limit region, or fuel-efficient region excess.
| Driving condition | ECO drive indicator (Color) |
|---|---|
| Within the ECO drive range. | ON (Green) |
| Likely over the ECO drive range. (1) | Blink (Green) (1) |
| Outside the ECO drive range. | OFF |
| Low speed region [approx. 3.2 km/h (2 MPH) or less] and high speed region [approx. 144 km/h (90 MPH) or more]. | |
| (1) With ECO pedal | |
| (1) | With ECO pedal |
ACTIVE TRACE CONTROL FUNCTION
- SPORT mode is introduced.
- In SPORT mode, the changing of brake control characteristics allows the driver to control the vehicle motion more than in STANDARD mode.
ECO PEDAL CONTROL
- This system supports ECO driving by applying a load to the accelerator pedal according to an accelerator pedal operation during ECO mode.
- Reaction force to the accelerator pedal can be switched in two settings between STANDARD and SOFT. Pedal reaction force to the accelerator pedal can be set to OFF, as necessary. (Switch the settings on the NAVI screen.)
- ECO pedal control and ECO drive indicator lamp are interlocked each other to support ECO driving.
- For further information on ECO pedal control, refer to " «INFINITI DRIVE MODE SELECTOR: SYSTEM DESCRIPTION»(ref-657660-S29095006312014092100000) ".
COMBINATION METER CONTROL
A mode state of the INFINITI drive mode selector is displayed on the information display built in the meter.
Scheme 52
ECO DRIVE INDICATOR LAMP CONTROL
ECO drive indicator lamp turns OFF under the following conditions.
- While driving at low speeds [3.2 km/h (2 MPH) or less] or high speeds [144 km/h (90 MPH) or more].
- Intelligent cruise control is in operation.
- Selector lever is in R range.
- When switching from ECO mode to the other mode by operating the drive mode select switch, ECO pedal reaction force is generated in common with ECO mode until the accelerator pedal is released.
- ECO pedal reaction force is not generated under the following conditions. Intelligent cruise control is in operation. Accelerator pedal is depressed quickly Selector lever is in N or R range. ECO pedal reaction force setting is OFF.
Note. ECO pedal control is only for vehicles with an intelligent pedal (distance control assist).
ENGINE OUTPUT CHARACTERISTICS AFTER SWITCHING MODE
- Engine output characteristics after switching mode by operating the drive mode select switch are as follows. After switching mode to a mode that engine output increase, engine output characteristics are changed by releasing the accelerator pedal. After switching mode to a mode that engine output decreases, engine output characteristics are changed immediately.
- When an accelerator angle is constant, engine output characteristics are as follows. SPORT = STANDARD > ECO > SNOW
| Control mode | Engine output |
|---|---|
| SPORT | Normal (1) |
| STANDARD | Normal |
| ECO | Decrease |
| SNOW | Decrease (More reduction than ECO mode) |
| (1) Not controlled by engine control system. | |
| (1) | Not controlled by engine control system. |
OUTPUT CHARACTERISTICS
Scheme 53
DETAILED FLOW
- INTERVIEW FOR MALFUNCTION Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurred. : GO TO 2.
- SYMPTOM CHECK Check the symptom based on the information obtained from the customer. Perform "All DTC Reading" with CONSULT. Is U1000 detected? YES: Perform CAN communication trouble diagnosis. NO: GO TO 3.
- CHECK DRIVE MODE SELECT SWITCH AND METER INDICATION Compare combination meter indication with drive mode select switch pointer position. Does switch position accord with meter indication? YES: Perform trouble diagnosis of malfunctioning system (DTC confirmation). NO: GO TO 4.
- CHECK THE DRIVE MODE SELECT SWITCH CIRCUIT Perform inspection of drive mode select switch circuit. Refer to " «DIAGNOSIS PROCEDURE»(ref-657680-S03798680432014092200000) ". Is inspection result normal? YES: GO TO 5. NO: Repair or replace malfunctioning parts.
- CHECK THE DATA MONITOR OF COMBINATION METER Compare "DRIVE MODE STATS" indication on the combination meter data monitor with drive mode select switch pointer position. Does switch position accord with data monitor indication? YES: GO TO 6. NO: Perform trouble diagnosis of A/C auto amp. Refer to " «CONSULT FUNCTION (METER/M&A)»(ref-657681-S15884521232014092100000) ".
- CHECK THE DATA MONITOR OF COMBINATION METER Compare "DRIVE MODE STATS" indication on the combination meter data monitor with combination meter indication. Does meter indication accord with data monitor indication? YES: GO TO 2. NO: Perform trouble diagnosis of combination meter. Refer to " «CONSULT FUNCTION (METER/M&A)»(ref-657681-S15884521232014092100000) ".