Security Control System (With Intelligent Key): Other Nissan Note E12

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. Information necessary to service the system safely is included in the " SRS AIRBAG " and " SEAT BELTS SRS AIRBAG " articles of this Service Information.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

Precaution for Work

1. When removing or disassembling each component, be careful not to damage or deform it. If a component may be subject to interference, be sure to protect it with a shop cloth.
2. When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it.
3. Protect the removed parts with a shop cloth and prevent them from being dropped.
4. Replace a deformed or damaged clip.
5. If a part is specified as a non-reusable part, always replace it with a new one.
6. Be sure to tighten bolts and nuts securely to the specified torque.
7. After installation is complete, be sure to check that each part works properly.
8. Follow the steps below to clean components: Water soluble dirt
9. Dip a soft cloth into lukewarm water, wring the water out of the cloth and wipe the dirty area.
10. Then rub with a soft, dry cloth. Oily dirt
11. Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%) and wipe the dirty area.
12. Then dip a cloth into fresh water, wring the water out of the cloth and wipe the detergent off.
13. Then rub with a soft, dry cloth. Do not use organic solvent such as thinner, benzene, alcohol or gasoline. For genuine leather seats, use a genuine leather seat cleaner.

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

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CVT Shift Selector (Park Position Switch)

Park position switch detects that CVT shift selector is in the P (Park) position and then transmits the signal to BCM and IPDM E/R.

BCM confirms the CVT shift selector position with the following 5 signals

1. P (Park) position signal from CVT shift selector (park position switch)
2. P/N position signal from TCM
3. P (Park) position signal from IPDM E/R (CAN)
4. P/N position signal from IPDM E/R (CAN)
5. P/N position signal from TCM (CAN)

IPDM E/R confirms the CVT shift selector position with the following 3 signals

1. P (Park) position signal from CVT shift selector (park position switch)
2. P/N position signal from TCM
3. P/N position signal from BCM (CAN)

BCM

BCM controls INTELLIGENT KEY SYSTEM (ENGINE START FUNCTION), NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS (NATS), and VEHICLE SECURITY SYSTEM.

BCM performs the ID verification between BCM and Intelligent Key when the Intelligent Key is carried into the detection area of inside key antenna and push-button ignition switch is pressed. If the ID verification result is OK, push-button ignition switch operation is available.

Then, when the power supply position is turned ON, BCM performs ID verification between BCM and ECM. If the ID verification result is OK, ECM can start engine.

ECM

ECM controls the engine.

When power supply position is turned ON, BCM starts communication with ECM and performs the ID verification between BCM and ECM.

If the verification result is OK, the engine can start. If the verification result is invalid, the engine can not start.

IPDM E/R

IPDM E/R has the starter relay and starter control relay inside. Starter relay and starter control relay are used for the engine starting function. IPDM E/R controls these relays while communicating with BCM.

NATS Antenna Amp.

The ID verification is performed between BCM and transponder in Intelligent Key via NATS antenna amp. when Intelligent Key backside is contacted to push-button ignition switch in case that Intelligent Key battery is discharged. If the ID verification result is OK, the operation of starting engine is available.

Combination Meter

Combination meter transmits the vehicle speed signal to BCM via CAN communication.

BCM also receives the vehicle speed signal from ABS actuator and electric unit (control unit) via CAN communication. BCM compares both signals to detect the vehicle speed.

Door Switch

Door switch detects door open/close condition and then transmits ON/OFF signal to BCM.

Outside Key Antenna

Outside key antenna detects whether Intelligent Key is outside the vehicle and transmits the signal to BCM. Three outside key antennas are installed in the front outside handle LH, front outside handle RH and rear bumper.

Inside Key Antenna

Inside key antenna detects whether Intelligent Key is inside the vehicle and transmits the signal to BCM. Three inside key antennas are installed in the instrument center, console and trunk room.

Remote Keyless Entry Receiver

Remote keyless entry receiver receives each button operation signal and electronic key ID signal from Intelligent Key and then transmits the signal to BCM.

Each Intelligent Key has an individual electronic ID and transmits the ID signal by request from BCM.

Carrying the Intelligent Key whose ID is registered in BCM, the driver can perform, remote start, door lock/unlock operation, remote liftgate, panic alarm and push-button ignition switch operation.

Push-button Ignition Switch

Push-button ignition switch detects that push-button is pressed and then transmits the signal to BCM. BCM changes the power supply position with the operation of push-button ignition switch. BCM maintains the power supply position status while push-button is not operated.

Security Indicator Lamp

Security indicator lamp is located on combination meter.

Security indicator lamp blinks when power supply position is any position other than ON to warn that NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS (NATS) is on board.

Starter Relay

Engine starting system functions by controlling both starter relay and starter control relay.

Both relays are integrated in IPDM E/R. Starter relay is controlled by BCM, and starter control relay is controlled by IPDM E/R on request from BCM.

IPDM E/R transmits starter relay and starter control relay status signal to BCM via CAN communication.

Stop Lamp Switch

Stop lamp switch detects that brake pedal is depressed, and then transmits the signal to BCM.

Transmission Range Switch

Transmission range switch is integrated in CVT assembly, and detects the CVT shift selector position.

TCM receives the transmission range switch signal and then transmits the P/N position signal to BCM and IPDM E/R.

BCM confirms the CVT shift selector position with the following 5 signals

1. P (Park) position signal from CVT shift selector (park position switch)
2. P/N position signal from TCM
3. P (Park) position signal from IPDM E/R (CAN)
4. P/N position signal from IPDM E/R (CAN)
5. P/N position signal from TCM (CAN)

IPDM E/R confirms the CVT shift selector position with the following 3 signals

1. P (Park) position signal from CVT shift selector (park position switch)
2. P/N position signal from TCM
3. P/N position signal from BCM (CAN)

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PRECAUTIONS FOR INTELLIGENT KEY SYSTEM

The transponder (the chip for NATS ID verification) is integrated into the Intelligent Key. (For the conventional models, it is integrated into the mechanical key.) Therefore, ID verification cannot be performed by mechanical key only.

In that case, NATS ID verification can be performed when Intelligent Key backside is contacted to push-button ignition switch while brake pedal is depressed. If verification result is OK, engine can be started.

PRECAUTIONS FOR KEY REGISTRATION

1. The ID registration is a procedure that erases the current NATS ID once, and then registers a new ID. Therefore before starting the registration operation, collect all registered Intelligent Keys from the customer.
2. When registering the Intelligent Key, perform only one procedure to simultaneously register both IDs (NATS ID and Intelligent Key ID).

1. Security indicator lamp warns that the vehicle is equipped with NATS.
2. Security indicator lamp always blinks when the ignition switch is in any position other than ON.

Note. Because security indicator lamp is highly efficient, the battery is barely affected.

THEFT WARNING ALARM

1. The theft warning alarm function activates horns and headlamps intermittently when BCM detects that any door is opened by unauthorized means while the system is in the ARMED state.
2. Security indicator lamp on combination meter always blinks when power supply position is any position other than ON. Security indicator lamp blinking warns that the vehicle is equipped with a vehicle security system.

Operation Flow

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Note. BCM ignores the door key cylinder UNLOCK switch signal input for 1 second after the door key cylinder LOCK switch signal input. To lock/unlock all doors by operating remote controller button of Intelligent Key or door request switch, Intelligent Key must be within the detection area of outside key antenna. For details, refer to " INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION: SYSTEM DESCRIPTION ". To open trunk by operating trunk opener switch, Intelligent Key must be within the detection area of outside key antenna. For details, refer to " INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION: SYSTEM DESCRIPTION ".

DISARMED Phase

The vehicle security system is not set in the DISARMED phase. The vehicle security system stays in this phase while any door is open because it is assumed that the owner is inside or nearby the vehicle. Security indicator lamp blinks every 2.4 seconds.

When the vehicle security system is reset, each phase switches to the DISARMED phase directly.

PRE-ARMED Phase

The PRE-ARMED phase is the transient state between the DISARMED phase and the ARMED phase. This phase is maintained for 30 seconds so that the owner can reset the setting due to a mis-operation. This phase switches to the ARMED phase when vehicle conditions are not changed for 30 seconds. Security indicator lamp illuminates while being in this phase.

To reset the PRE-ARMED phase, refer to the switching condition of No. 10 in the table above.

ARMED Phase

The vehicle security system is set and BCM monitors all necessary inputs. If any door is opened without using Intelligent Key, vehicle security system switches to the ALARM phase. Security indicator lamp blinks every 2.4 seconds.

To reset the ARMED phase, refer to the switching condition of No. 11 in the table above.

ALARM Phase

BCM transmits "Theft Warning Horn Request" signal and "High Beam Request" signal intermittently to IPDM E/R via CAN communication. In this phase, horns and headlamps are activated intermittently for approximately 50 seconds to warn that the vehicle is accessed by unauthorized means. ON/OFF timing of horns and headlamps are synchronized. After 50 seconds, the vehicle security system returns to the ARMED phase. At this time, if BCM still detects unauthorized access to the vehicle, the system is switched to the ALARM phase again. This RE-ALARM operation is carried out a maximum of 2 times.

To cancel the ALARM operation, refer to the switching condition of No. 12 in the table above.

Note. If a battery terminal is disconnected during the ALARM phase, theft warning alarm stops. But when the battery terminal is reconnected, theft warning alarm is activated again.

PANIC ALARM

1. The panic alarm function activates horns and headlamps intermittently when the owner presses the PANIC ALARM button of Intelligent Key outside the vehicle while the power supply position is OFF or LOCK.
2. When BCM receives panic alarm signal from Intelligent Key, BCM transmits "Theft Warning Horn Request" signal and "High Beam Request" signal intermittently to IPDM E/R via CAN communication. To prevent the activation due to mis-operation of Intelligent Key by owner, the panic alarm function is activated when BCM receives the signal for 0.4 - 0.6 seconds.
3. Panic alarm operation is maintained for 25 seconds.
4. Panic alarm operation is cancelled when BCM receives one of the following signals: LOCK button of Intelligent Key: ON UNLOCK button of Intelligent Key: ON PANIC ALARM button of Intelligent Key: Long pressed Any door request switch: ON

DATA MONITOR

WORK SUPPORT

List of ECU Reference

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DETAILED FLOW

1. GET INFORMATION FOR SYMPTOM Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurs). Check operation condition of the function that is malfunctioning. : GO TO 2.
2. CHECK DTC Check DTC. Perform the following procedure if DTC is detected. Record DTC and freeze frame data (Print them out using CONSULT.) Erase DTC. Study the relationship between the cause detected by DTC and the symptom described by the customer. Check related service bulletins for information. Are any symptoms described and any DTC detected? Symptom is described, DTC is detected: GO TO 3. Symptom is described, DTC is not detected: GO TO 4 . Symptom is not described, DTC is detected: GO TO 5 .
3. CONFIRM THE SYMPTOM Try to confirm the symptom described by the customer. Also study the normal operation and fail-safe related to the symptom. Verify relation between the symptom and the condition when the symptom is detected. : GO TO 5 .
4. CONFIRM THE SYMPTOM Try to confirm the symptom described by the customer. Verify relation between the symptom and the condition when the symptom is detected. : GO TO 6 .
5. PERFORM DTC CONFIRMATION PROCEDURE Perform DTC CONFIRMATION PROCEDURE for the detected DTC, and then check that DTC is detected again. At this time, always connect CONSULT to the vehicle, and check self diagnostic results in real time. If two or more DTCs are detected, refer to " «DTC INSPECTION PRIORITY CHART»(ref-675612-S08625185972014120500000) " and determine trouble diagnosis order. NOTE: Freeze frame data is useful if the DTC is not detected. Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service Information. This simplified check procedure is an effective alternative though DTC cannot be detected during this check. If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIRMATION PROCEDURE. Is DTC detected? YES: GO TO 7 . NO: Check according to " «INTERMITTENT INCIDENT»(ref-675571-S38824794042014120500000) ".
6. DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS Detect malfunctioning system according to SYMPTOM DIAGNOSIS based on the confirmed symptom in step 4 , and determine the trouble diagnosis order based on possible causes and symptom. Is the symptom described? YES: GO TO 7. NO: Monitor input data from related sensors or check voltage of related module terminals using CONSULT.
7. DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE Inspect according to Diagnosis Procedure of the system. Is malfunctioning part detected? YES: GO TO 8. NO: Check according to " «INTERMITTENT INCIDENT»(ref-675571-S38824794042014120500000) ".
8. REPAIR OR REPLACE THE MALFUNCTIONING PART Repair or replace the malfunctioning part. Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replacement. Check DTC. If DTC is detected, erase it. : GO TO 9.
9. FINAL CHECK When DTC is detected in step 2 , perform DTC CONFIRMATION PROCEDURE again, and then check that the malfunction is repaired securely. When symptom is described by the customer, refer to confirmed symptom in step 3 or 4 , and check that the symptom is not detected. Is DTC detected and does symptom remain? YES-1: DTC is detected: GO TO 7 . YES-2: Symptom remains: GO TO 4 . NO: Before returning the vehicle to the customer, always erase DTC.

ECM: Work Procedure

1. PERFORM INITIALIZATION OF NATS SYSTEM AND REGISTRATION OF ALL NATS IGNITION KEY IDS Perform BCM initialization. (NATS) : GO TO 2.
2. PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING Refer to " «WORK PROCEDURE»(ref-675578-S09002658642014120500000) ". : GO TO 3.
3. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING Refer to " «WORK PROCEDURE»(ref-675578-S09526020222014120500000) ". : GO TO 4.
4. PERFORM IDLE AIR VOLUME LEARNING Refer to " «WORK PROCEDURE»(ref-675578-S09338382202014120500000) ". : END

BCM: Work Procedure

1. SAVING VEHICLE SPECIFICATION CONSULT Enter "Re/Programming, Configuration" and perform "Before Replace ECU" to save or print current vehicle specification. NOTE: If "Before Replace ECU" cannot be used, use the "After Replace ECU" or "Manual Configuration" after replacing BCM. : GO TO 2.
2. REPLACE BCM Replace BCM. Refer to " «REMOVAL AND INSTALLATION»(ref-675612-S22326735462014120500000) ". : GO TO 3.
3. WRITING VEHICLE SPECIFICATION CONSULT Enter "Re/Programming, Configuration". If "Before Replace ECU" operation was performed, automatically an "Operation Log Selection" screen will be displayed. Select the applicable file from the "Saved Data List" and press "Confirm" to write vehicle specification. Refer to " «WORK PROCEDURE»(ref-675612-S20105046772014120500000) ". If "Before Replace ECU" operation was not performed, select "After Replace ECU" or "Manual Configuration" to write vehicle specification. Refer to " «WORK PROCEDURE»(ref-675612-S20105046772014120500000) ". : GO TO 4.
4. INITIALIZE BCM (NATS) Perform BCM initialization. (NATS) : Work End.

Conditions of Vehicle (Operating Conditions)

1. "ENGINE START BY I-KEY" setting in "WORK SUPPORT" mode of "INTELLIGENT KEY" of "BCM" is ON.
2. One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.

Power supply position is other than the ON position.