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 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 . 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 three minutes before performing any service. |
Scheme 95
Scheme 95: Component Parts Location
| No. | Component | Description |
|---|
| 1. | Accessory relay-2 | Accessory relay-2 is controlled by BCM. Accessory relay-2 supplies accessory power supply or ignition switch ACC signal to each ECU when ignition switch is turned to ACC or ON. BCM compares status of accessory relay-2 control signal, and ignition switch position judged by BCM. |
| 2. | BCM | BCM controls power distribution system. BCM judges ignition switch position by push-button ignition switch (push switch) and vehicle condition. BCM checks ignition switch position internally. |
| 3. | Push-button ignition switch | Push-button ignition switch (push switch) is pressed, and transmits status signal to BCM and IPDM E/R. |
| 4. | IPDM E/R | IPDM E/R detects push-button ignition switch (push switch) status, and transmits push-button ignition switch status signal (CAN) to BCM. IPDM E/R receives ignition relay-1 (IPDM E/R) control signal and ignition switch ON signal (CAN) from BCM, and controls ignition relay-1 (built into IPDM E/R) |
| 5. | Blower relay (in fuse block) | Blower relay is controlled by BCM. Blower relay supplies ignition switch ON power supply or ignition switch ON signal to air conditioning system when ignition switch is turned ON. BCM compares status of blower relay control signal and ignition switch position judged by BCM. |
| 6. | Accessory relay-1 (in fuse block) | Accessory relay-1 is controlled by BCM. Accessory relay-1 supplies accessory power supply or ignition switch ACC signal to each ECU when ignition switch is turned ACC or ON. BCM compares status of accessory relay-1 control signal, and ignition switch position judged by BCM. |
| 7. | Ignition relay-2 (in fuse block) | Ignition relay-2 is controlled by BCM. Ignition relay-2 supplies ignition switch ON power supply or ignition switch ON signal to each ECU and system when ignition switch is turned ON. BCM compares status of ignition relay-2 control signal and ignition switch position judged by BCM. BCM monitors ignition relay-2 operating status by ignition relay feedback signal. |
Scheme 96
Scheme 96: SYSTEM DIAGRAM
IGNITION BATTERY SAVER SYSTEM
When all the following conditions are met for 30 minutes, the ignition battery saver system will cut off the power supply to prevent battery discharge.
- The ignition switch is in the ACC or ON position
- All doors are closed
- Selector lever is in the P (park) position
Reset Condition of Ignition Battery Saver System
In order to prevent the battery from discharging, the ignition battery saver system will cut off the power supply when all doors are closed, the selector lever is in P (park) position and the ignition switch is left in the ACC or ON position for 30 minutes.
- Opening any door
- Operating door request switch on door handle
- Operating Intelligent Key
Fail-safe
BCM performs fail-safe control when the following DTCs are detected.
| CONSULT Display | Fail-safe | Cancellation |
|---|
| B2192: ID DISCORD BCM-ECM | Inhibit engine cranking | Erase DTC |
| B2193: CHAIN OF BCM-ECM | Inhibit engine cranking | Erase DTC |
| B2195: ANTI SCANNING | Inhibit engine cranking | Ignition switch ON --> OFF |
| B2196: DONGLE NG | Inhibit engine cranking | Erase DTC |
| B2198: NATS ANTENNA AMP | Inhibit engine cranking | Erase DTC |
| B2557: VEHICLE SPEED | | When the following CAN signal status (vehicle speed signal) becomes consistent Vehicle speed signal (ABS) Vehicle speed signal (Meter) |
| B2601: SHIFT P SIGNAL | | 500 ms after the following signal reception status becomes consistent Park position switch signal P range signal (CAN) |
| B2602: SHIFT P DIAG | | 5 seconds after the following BCM recognition conditions are fulfilled Ignition switch is in the ON position Park position switch signal: P position (push selector button) or except P position (9 - 16 V) Vehicle speed: 4 km/h (2.5 MPH) or more |
| B2603: SHIFT POSITION | | 500 ms after any of the following BCM recognition conditions are fulfilled Status 1 Ignition switch is in the ON position Park position switch signal: P position (push selector button) or except P position (9 - 16 V) P/N position signal: Except P and N positions (0 - 1.5 V) Status 2 Ignition switch is in the ON position Park position switch signal: P position (release selector button) (0 - 1.5 V) P/N position signal: P or N positions (9 - 16 V) |
| B2604: SHIFT PN DIAG CAN | | 500 ms after any of the following BCM recognition conditions are fulfilled Status 1 Ignition switch is in the ON position P/N position signal: P or N position (9 - 16 V) Shift position signal (CAN): P or N position Status 2 Ignition switch is in the ON position P/N position signal: Except P and N positions (0 - 1.5 V) Shift position signal (CAN): Except P and N position |
| B2605: SHIFT PN DIAG IPDM | | 500 ms after any of the following BCM recognition conditions are fulfilled Status 1 Ignition switch is in the ON position P/N position signal: Except P and N positions (0 - 1.5 V) Status 2 Ignition switch is in the ON position P/N position signal: P or N position (9 - 16 V) |
| B2608: STARTER RELAY | Inhibit engine cranking | 500 ms after the following signal communication status becomes consistent Starter motor relay control signal Starter relay status signal (CAN) |
| B260F: ECM CAN COMM | Inhibit engine cranking | When any of the following conditions are fulfilled Ignition switch changes to ACC Receives engine status signal (CAN) |
| B26F1: IGN RELAY OFF | Inhibit engine cranking | When the following conditions are fulfilled Ignition switch ON signal (CAN: Transmitted from BCM): ON Ignition switch ON signal (CAN: Transmitted from IPDM E/R): ON |
| B26F2: IGN RELAY ON | Inhibit engine cranking | When the following conditions are fulfilled Ignition switch ON signal (CAN: Transmitted from BCM): OFF Ignition switch ON signal (CAN: Transmitted from IPDM E/R): OFF |
| B26F3: START CONT RLY ON | Inhibit engine cranking | When the following conditions are fulfilled Starter control relay signal (CAN: Transmitted from BCM): OFF Starter control relay signal (CAN: Transmitted from IPDM E/R): OFF |
| B26F4: START CONT RLY OFF | Inhibit engine cranking | When the following conditions are fulfilled Starter control relay signal (CAN: Transmitted from BCM): ON Starter control relay signal (CAN: Transmitted from IPDM E/R): ON |
| B26F7: BCM | Inhibit engine cranking by Intelligent Key system | When room antenna and luggage room antenna functions normally |
| U0415: VDC CAN CIR2 | | When vehicle speed signal (Meter) (CAN) is received normally |
DATA MONITOR
| Monitor Item [Unit] | Main | Description |
|---|
| REQ SW-DR [On/Off] | X | Indicates condition of door request switch LH. |
| REQ SW-AS [On/Off] | X | Indicates condition of door request switch RH. |
| REQ SW-BD/TR [On/Off] | X | Indicates condition of back door request switch. |
| PUSH SW [On/Off] | | Indicates condition of push-button ignition switch. |
| CLUTCH SW [On/Off] | X | Indicates condition of clutch interlock switch. |
| BRAKE SW 1 [On/Off] | X | Indicates condition of brake switch. |
| BRAKE SW 2 [On/Off] | | Indicates condition of brake switch. |
| DETE/CANCL SW [On/Off] | X | Indicates condition of P (park) position. |
| SFT PN/N SW [On/Off] | X | Indicates condition of P (park) or N (neutral) position. |
| UNLK SEN-DR [On/Off] | X | Indicates condition of door unlock sensor. |
| PUSH SW-IPDM [On/Off] | | Indicates condition of push-button ignition switch received from IPDM E/R on CAN communication line. |
| IGN RLY1-F/B [On/Off] | | Indicates condition of ignition relay 1 received from IPDM E/R on CAN communication line. |
| DETE SW-IPDM [On/Off] | | Indicates condition of detent switch received from TCM on CAN communication line. |
| SFT PN-IPDM [On/Off] | | Indicates condition of P (park) or N (neutral) position from TCM on CAN communication line. |
| SFT P-MET [On/Off] | | Indicates condition of P (park) position from TCM on CAN communication line. |
| SFT N-MET [On/Off] | | Indicates condition of N (neutral) position from IPDM E/R on CAN communication line. |
| ENGINE STATE [Stop/Start/Crank/Run] | X | Indicates condition of engine state from ECM on CAN communication line. |
| VEH SPEED 1 [mph/km/h] | X | Indicates condition of vehicle speed signal received from ABS on CAN communication line. |
| VEH SPEED 2 [mph/km/h] | X | Indicates condition of vehicle speed signal received from combination meter on CAN communication line. |
| DOOR STAT-DR [LOCK/READY/UNLK] | X | Indicates condition of driver side door status. |
| DOOR STAT-AS [LOCK/READY/UNLK] | X | Indicates condition of passenger side door status. |
| ID OK FLAG [Set/Reset] | | Indicates condition of Intelligent Key ID. |
| PRMT ENG STRT [Set/Reset] | | Indicates condition of engine start possibility. |
| RKE OPE COUN1 [0-19] | X | When remote keyless entry receiver receives the signal transmitted while operating on Intelligent Key, the numerical value start changing. |
| RKE OPE COUN2 [0-19] | X | When remote keyless entry receiver receives the signal transmitted while operating on Intelligent Key, the numerical value start changing. |
| RKE-LOCK [On/Off] | | Indicates condition of lock signal from Intelligent Key. |
| RKE-UNLOCK [On/Off] | | Indicates condition of unlock signal from Intelligent Key. |
| RKE-PANIC [On/Off] | | Indicates condition of panic signal from Intelligent Key. |
| RKE-MODE CHG [On/Off] | | Indicates condition of mode change signal from Intelligent Key. |
WORK SUPPORT
| Support Item | Setting | Description |
|---|
| LOCK/UNLOCK BY I-KEY | On (1) | Door lock/unlock function from Intelligent Key ON. |
| Off | Door lock/unlock function from Intelligent Key OFF. |
| ANTI KEY LOCK IN FUNCTI | On (1) | Anti lock out setting ON. |
| Off | Anti lock out setting OFF. |
| ANS BACK I-KEY UNLOCK | Off | No buzzer reminder when doors are unlocked with request switch. |
| On (1) | Buzzer reminder when doors are unlocked with request switch. |
| ANS BACK I-KEY LOCK | Horn Chirp | Horn chirp reminder when doors are locked with request switch. |
| Buzzer (1) | Buzzer reminder when doors are locked with request switch. |
| Off | No reminder when doors are locked with request switch. |
| HORN WITH KEYLESS LOCK | Off | Horn chirp reminder when doors are locked with Intelligent Key. |
| On (1) | No horn chirp reminder when doors are locked with Intelligent Key. |
| HAZARD ANSWER BACK | Lock/Unlock (1) | Hazard warning lamp activation when doors are locked/unlocked with Intelligent Key or request switch. |
| Unlock Only | Hazard warning lamp activation when doors are unlocked with Intelligent Key or request switch. |
| Lock Only | Hazard warning lamp activation when doors are locked with Intelligent Key or request switch. |
| Off | No hazard warning lamp activation when doors are locked/unlocked with Intelligent Key or request switch. |
| INSIDE ANT DIAGNOSIS | | This function allows inside key antenna self-diagnosis. |
| CONFIRM KEY FOB ID | | Intelligent Key ID code can be checked. |
| SHORT CRANKING OUTPUT | Start | 70 msec | Starter motor operation duration time setting. |
| 100 msec |
| 200 msec |
| End | |
| PANIC ALARM SET | MODE 3 | 1.5 sec | Intelligent Key panic alarm button setting. |
| MODE 2 | OFF |
| MODE 1 (1) | 0.5 sec |
| LO-BATT OF KEY FOB WARN | On (1) | Intelligent Key low battery warning ON. |
| Off | Intelligent Key low battery warning OFF. |
| AUTO LOCK SET | MODE7 | 5 min | Auto door lock time setting. |
| MODE6 | 4 min |
| MODE5 | 3 min |
| MODE4 | 2 min |
| MODE3 (1) | 1 min |
| MODE2 | 30 sec |
| MODE1 | Off |
| (1) Initial Setting |
List of ECU Reference
| ECU | Reference |
|---|
| BCM | " REFERENCE VALUE " |
| " FAIL-SAFE " |
| " DTC INSPECTION PRIORITY CHART " |
| " DTC INDEX " |
Scheme 97
Scheme 97: Wiring Diagram
Scheme 98
Scheme 99
Scheme 99: Connector End View
Scheme 100
Scheme 101
Scheme 102
Scheme 103
Scheme 104
Scheme 104: OVERALL SEQUENCE
DETAILED FLOW
- 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 component or system that is malfunctioning. : GO TO 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 .
- 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 .
- 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. NOTE: Freeze frame data is useful if the DTC is not detected. : GO TO 6 .
- 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. Is DTC detected? YES: GO TO 7 . NO: Refer to " «INTERMITTENT INCIDENT»(ref-675571-S38824794042014120500000) ".
- 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.
- DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE Inspect according to Diagnosis Procedure of the system. Is malfunctioning part detected? YES: GO TO 8. NO: Refer to " «INTERMITTENT INCIDENT»(ref-675571-S38824794042014120500000) ".
- 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.
- 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: Inspection End.
Component Function Check
- CHECK FUNCTION Select PUSH SW in Data Monitor of BCM with CONSULT. Check the push-button ignition switch signal under the following conditions. Test item Condition Status PUSH SW Push-button ignition switch is pressed On Push-button ignition switch is not pressed Off Is the indication normal? YES: Inspection End. NO: Go to " «DIAGNOSIS PROCEDURE»(ref-675633-S03950647892014120500000) ".
Conditions of Vehicle (Operating Conditions)
- ENGINE START BY I-KEY in WORK SUPPORT is set to On. Refer to " «INTELLIGENT KEY: CONSULT FUNCTION (BCM - INTELLIGENT KEY)»(ref-675633-S09089998522014120500000) ".
- One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.
