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 " articles of this Service Information.
| WARNING | Always observe the following items to prevent 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 AIRBAG ". 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. The vehicle may be equipped with a passenger air bag deactivation switch which can be operated by the customer. When the passenger air bag is switched OFF, the passenger air bag is disabled and will not inflate. When the passenger air bag is switched ON, the passenger air bag is enabled and could inflate for certain types of collision. After SRS maintenance or repair, make sure the passenger air bag deactivation switch is in the same position (ON or OFF) as when the vehicle arrived for service. |
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. |
Scheme 377
- When removing the 12V battery terminal, turn OFF the ignition switch and wait at least 30 seconds. NOTE: ECU may be active for several tens of seconds after the ignition switch is turned OFF. If the battery terminal is removed before ECU stops, then a DTC detection error or ECU data corruption may occur.
- For vehicles with the 2-batteries, be sure to connect the main battery and the sub battery before turning ON the ignition switch. NOTE: If the ignition switch is turned ON with any one of the terminals of main battery and sub battery disconnected, then DTC may be detected.
- After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC. NOTE: The removal of 12V battery may cause a DTC detection error.
Commercial Service Tools
Tool Description Power tool Loosening screws
Scheme 378
Scheme 379
| No. | Component | Function |
|---|---|---|
| 1, 5. | Front door speaker | Refer to " SPEAKER ". |
| 2, 3. | Slide door speaker | |
| 4. | Antenna amp. | Refer to " ANTENNA AMP., RADIO ANTENNA, AND ANTENNA FEEDER ". |
| 6. | Audio unit | Refer to " AUDIO UNIT ". |
Scheme 380
- AM/FM electronic tuner radio, CD player, and auxiliary input jack are integrated into the audio unit.
- The audio unit supports CD-R/CD-RW and provides the playback of MP3/WMA music files.
Speaker
4 speakers system is adopted.
Scheme 381
- ø 15.0 x 23.0 cm (6 x 9 in) speaker is installed to the bottom of the front door.
- Sound signal is input from the audio unit to output low range sounds. Rated input: 20 W Maximum input: 40 W Impedance: 2 ohms
Scheme 382
- ø 16cm (6.5 in) speaker is located at the lower part of the back of the slide door.
- Sound signal is input from the audio unit to output high, mid, and low range sounds. Rated input: 20 W Maximum input: 40 W Impedance: 2 ohms
Scheme 383
- AM/FM radio main antenna is located on the right rear side window glass and FM radio sub antenna on the left rear side window glass.
- The AM/FM radio main antenna path has an antenna amp. to obtain sufficient reception power.
| CAUTION | Affixing any mirror-type window films or metallic items (e.g. commercial antenna) on the rear side window glass causes a reduction in the radio receiver sensitivity. |
Scheme 384
"tringle": Indicates that the part is connected at points with same symbol in actual vehicle.
Scheme 385
AUDIO FUNCTION
The MP3/WMA playback function enables music to play for a long time: the user need not change the CD during a long trip. The text display function is also adopted so that the title name and artist name of the ID3 tag/WMA tag can be displayed.
Operating signal
Audio system operation can be performed with audio fascia switch.
AM/FM Radio Mode
- AM/FM radio tuner is built into audio unit.
- Radio signals are received by radio antenna, next they are amplified by antenna amp., and finally they are input to audio unit.
- FM radio wave is received by FM sub antenna, and it is transmitted to the audio unit directly.
- Audio unit outputs the sound signal to each speaker.
CD Mode
- CD function is built into audio unit.
- Audio unit outputs sound signal to each speaker when CD is inserted to audio unit.
AUX Input Function
- When the external device is connected to the AUX (auxiliary) input jack of the audio unit, the external device inputs a sound signal to the audio unit.
- When AUX mode is selected, audio unit outputs sound signal to each speaker.
Scheme 386
PHYSICAL VALUES
Terminal (Wire color) Description Condition Standard Reference value (Approx.) + - Signal name Input/Output 2 (R) 3 (G) Sound signal front speaker LH Output Ignition switch ON Sound output. Outputs waveform synchronized with sound. 4 (V) 5 (LG) Sound signal slide door speaker LH Output Ignition switch ON Sound output. Outputs waveform synchronized with sound. 7 (V) Ground ACC power supply Input Ignition switch ACC - 10.8 - 15.6 V Battery voltage 9 (R/W) 8 (B/W) Illumination control signal Input Ignition switch ON Lighting switch 1ST When meter illumination is maximum Waveform of 0 - 15.6 V is input according to meter illumination step. Lighting switch 1ST When meter illumination is step 11 Lighting switch 1ST When meter illumination is minimum 0 V 11 (W) 12 (B) Sound signal front speaker RH Output Ignition switch ON Sound output. Outputs waveform synchronized with sound. 13 (P) 14 (L) Sound signal slide door speaker RH Output Ignition switch ON Sound output. Outputs waveform synchronized with sound. 19 (Y) Ground Battery power supply Input Ignition switch OFF - 10.8 - 15.6 V Battery voltage 21 (B) Ground Control signal - Ignition switch ON - 1 V or less 0 V 22 (B) Ground Control signal - Ignition switch ON - 1 V or less 0 V 23 (B) Ground Control signal - Ignition switch ON - 1 V or less 0 V 37 - FM sub Input - - - - 38 - AM-FM main Input - - - - 39 Ground Antenna amp. ON signal Output Ignition switch ACC - 10.8 - 15.6 V 12.0 V
Scheme 387
Scheme 388
Scheme 389
Scheme 390
Scheme 391
Scheme 392
Scheme 393
Scheme 394
Scheme 395
Scheme 396
Reference 1... Refer to " SYMPTOM TABLE ".
DETAILED FLOW
- CHECK SYMPTOM 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 the symptom. : GO TO 2.
- PERFORM DIAGNOSIS BY SYMPTOM Perform the relevant diagnosis referring to the diagnosis chart by symptom. Refer to " «SYMPTOM TABLE»(ref-672668-S18480254802014112400000) ". : GO TO 3.
- REPAIR OR REPLACE MALFUNCTIONING PARTS Repair or replace the malfunctioning parts. : GO TO 4.
- FINAL CHECK Perform the operation to check that the malfunction symptom is solved or any other symptoms are present. Is there any symptom? YES: GO TO 2 . NO: INSPECTION END
AUDIO SYSTEM
| Symptoms | Check items | Possible malfunction location/Action to take |
|---|---|---|
| Audio unit does not start. | Audio unit power supply and ground circuit. Refer to " AUDIO UNIT: DIAGNOSIS PROCEDURE ". | |
| No sound comes out. | No sound from all speakers. | Audio unit power supply and ground circuit. Refer to " AUDIO UNIT: DIAGNOSIS PROCEDURE ". |
| Only a certain speaker (front right, front left, rear right, or rear left, etc.) does not output sound. | Poor connector connection of speaker. Sound signal circuit malfunction between audio unit and speaker. Malfunction in speaker. Malfunction in audio unit. | |
| Noise is mixed with audio. | Noise comes out from all speakers. | Malfunction in audio unit. |
| Noise comes out only from a certain speaker (front right, front left, rear right, or rear left, etc.). | Poor connector connection of speaker. Sound signal circuit malfunction between audio unit and speaker. Malfunction in speaker. Poor installation of speaker (e.g. backlash and looseness) Malfunction in audio unit. | |
| Noise is mixed with radio only (when the car hits a bump or while driving over bad roads). | Poor connector connection of antenna or antenna feeder. | |
| Radio is not received or poor reception. | Other audio sounds are normal. Any radio cannot be received or poor reception is caused even after moving to a service area with good reception (e.g. a place with clear view and no obstacles generating external noises). | Antenna amp. ON signal circuit malfunction. Poor connector connection of antenna or antenna feeder. |
- The majority of the audio malfunctions are the result of outside causes (bad CD, electromagnetic interference, etc.). Check the symptoms below to diagnose the malfunction.
- The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning. Check that noise is caused and/or changed by engine speed, ignition switch turned to each position, and operation of each piece of electrical equipment. Then determine the cause.
Note. CD-R is not guaranteed to play because they can contain compressed audio (MP3, WMA) or could be incorrectly mastered by the customer on a computer. Check that the CDs carry the Compact Disc Logo. If not, the disc is not mastered to the red book Compact Disc Standard and may not play.
| Symptoms | Cause and counter measure |
|---|---|
| Cannot play | Check that the CD was inserted correctly. |
| Check that the CD is scratched or dirty. | |
| Check that there is condensation inside the player, and if there is, wait until the condensation is gone (about 1 hour) before using the player. | |
| The player will play correctly after it returns to the normal temperature if there is a temperature increase error. | |
| Only the music CD files (CD-DA data) will be played if there is a mixture of music CD files (CD-DA data) and MP3/WMA files on a CD. | |
| Files with extensions other than ".MP3", ".WMA", ".mp3", or ".wma" cannot be played. | |
| Check that the finalization process, such as session close and disc close, is done for the disc. | |
| Check that the CD is protected by copyright. | |
| Poor sound quality | Check that the CD is scratched or dirty. |
| It takes a relatively long time before the music starts playing. | If there are many folder or file levels on the MP3/WMA CD, or if it is a multi session disc, some time may be required before the music starts playing. |
| The songs do not play back in the desired order. | The playback order is the order in which the files were written by the software, so the files might not play in the desired order. |
| Poor reception only from a certain radio broadcast station. | Check incoming radio wave signal strength of applicable broadcast station. |
| Buzz/rattle sound from speaker | The majority of rattle sounds are not indicative of an issue with the speaker, usually something nearby the speaker is causing the rattle. |
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise from trains and other sources, is not a malfunction.
Note. Fading noise: This noise occurs because of variations in the field strength in a narrow range due to mountains or buildings blocking the signal. Multi-path noise: This noise results from a time difference between the broadcast waves directly from the station arriving at the antenna and the waves reflected by mountains or buildings.