DIAGNOSIS SYSTEM (BCM)EXL-19
< SYSTEM DESCRIPTION >
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WORK SUPPORT
* : Initial setting
FLASHER
FLASHER : CONSULT Func tion (BCM - FLASHER)INFOID:0000000009956483
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
DATA MONITOR
ACTIVE TEST
Support Item Setting Description
TWILIGHT ON MODE2* Autolamp function ON.
MODE1 Autolamp function OFF.
WIPER LINK MODE4 This mode is not used.
MODE3* Wiper link function operates in INT, LOW and HI.
MODE2 Wiper link function operates in LOW and HI.
MODE1 Wiper link function OFF.
CUSTOM A/LIGHT SETTING MODE4 Less sensitive than normal setting (turns ON later).
MODE3 More sensitive than MODE2.
MODE2 More sensitive than normal setting (turns ON earlier).
MODE1* Normal setting.
ILL DELAY SET MODE 8
Autolamp delay timer.
MODE 7
MODE 6
MODE 4
MODE 5
MODE 3
MODE 2
MODE 1*
Monitor Item [Unit] Description
REQ SW -DR [On/Off] Indicates condition of door request switch LH.
REQ SW -AS [On/Off] Indicates condition of door request switch RH.
PUSH SW [On/Off] Indicates condition of push-button ignition switch.
TURN SIGNAL R [On/Off] Indicates condition of turn signal function of combination switch.
TURN SIGNAL L [On/Off]
HAZARD SW [On/Off] Indicates condition of hazard switch.
RKE-LOCK [On/Off] Indicates condition of lock signal from Intelligent Key.
RKE-UNLOCK [On/Off] Indicates condition of unock signal from Intelligent Key.
RKE-PANIC [On/Off] Indicates condition of panic alarm signal from Intelligent Key.
Test Item Description
FLASHER This test is able to check turn signal lamp operation [Off/LH/RH].
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EXL-20
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
COMB SW
COMB SW : CONSULT Function (BCM - COMB SW)INFOID:0000000009956484
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
DATA MONITOR
BATTERY SAVER
BATTERY SAVER : CONSULT Function (BCM - BATTERY SAVER)INFOID:0000000009956486
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
DATA MONITOR
Monitor Item [Unit] Description
FR WIPER HI [On/Off]
Indicates condition of wiper operation of combination switch.
FR WIPER LOW [On/Off]
FR WASHER SW [On/Off]
FR WIPER INT [On/Off]
INT VOLUME [1 - 7] Indicates condition of intermittent wiper operation of combination switch.
TURN SIGNAL R [On/Off] Indicates condition of right turn signal operation of combination switch.
TURN SIGNAL L [On/Off] Indicates condition of left turn signal operation of combination switch.
TAIL LAMP SW [On/Off] Indicates condition of tail lamp switch operation of combination switch.
HI BEAM SW [On/Off] Indicates condition of Hi beam switch operation of combination switch.
HEAD LAMP SW 1 [On/Off] Indicates condition of head lamp switch 1 operation of combination switch.
HEAD LAMP SW 2 [On/Off] Indicates condition of head lamp switch 2 operation of combination switch.
PASSING SW [On/Off] Indicates condition of pass ing switch operation of combination switch.
AUTO LIGHT SW [On/Off] Indicates condition of auto light switch operation of combination switch.
FR FOG SW [On/Off] Indicates condition of front fog lamp switch operation of combination switch.
Monitor Item [Unit] Description
REQ SW -DR [On/Off] Indicates condition of door request switch LH.
REQ SW -AS [On/Off] Indicates condition of door request switch RH.
PUSH SW [On/Off] Indicates condition push-button ignition switch.
UNLK SEN -DR [On/Off] Indicates condition of door unlock sensor.
DOOR SW-DR [On/Off] Indicates condition of front door switch LH.
DOOR SW-AS [On/Off] Indicates condition of front door switch RH.
DOOR SW-RR [On/Off] Indicates condition of rear door switch RH.
DOOR SW-RL [On/Off] Indicates condition of rear door switch LH.
DOOR SW-BK [On/Off] Indicates condition of trunk switch.
CDL LOCK SW [On/Off] Indicates condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW [On/Off] Indicates condition of unlock signal from door lock and unlock switch.
KEY CYL LK-SW [On/Off] Indicates condition of lo ck signal from door key cylinder switch.
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DIAGNOSIS SYSTEM (BCM)EXL-21
< SYSTEM DESCRIPTION >
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ACTIVE TEST
KEY CYL UN-SW [On/Off] Indicates condition of unl ock signal from door key cylinder switch.
TRNK/HAT MNTR [On/Off] Indicates condition of trunk room lamp switch.
RKE-LOCK [On/Off] Indicates condition of lock signal from Intelligent Key.
RKE-UNLOCK [On/Off] Indicates condition of unlock signal from Intelligent Key. Monitor Item [Unit] Description
Test item Description
BATTERY SAVER This test is able to check battery saver operation [On/Off].
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GI-1
GENERAL INFORMATION
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CONTENTS
GENERAL INFORMATION
HOW TO USE THIS MANU AL ......................3
HOW TO USE THIS MANUAL ....................... .....3
Description .......................................................... ......3
Terms ........................................................................3
Units ..........................................................................3
Contents ....................................................................3
Relation between Illustrations and Descriptions .......4
Components ..............................................................4
HOW TO FOLLOW TROUBLE DIAGNOSES .....6
Description ................................................................6
How to Follow Test Groups in Trouble Diagnosis ......6
Key to Symbols Signifying Measurements or Pro-
cedures ............................................................... ......
7
HOW TO READ WIRING DIAGRAMS ................9
Connector symbols ............................................. ......9
Sample/wiring diagram -example- ...........................10
Description ..............................................................11
ABBREVIATIONS .......................................... ....13
Abbreviation List .................................................. ....13
TIGHTENING TORQUE OF STANDARD
BOLTS ............................................................ ....
18
Description .......................................................... ....18
Tightening Torque Table (New Standard Includ-
ed) ....................................................................... ....
18
RECOMMENDED CHEMICAL PRODUCTS
AND SEALANTS ............................................ ....
21
Recommended Chemical Products and Sealants ....21
VEHICLE INFORMATION ............................22
IDENTIFICATION INFORMATION ................. ....22
Model Variation ................................................... ....22
Identification Number ..............................................23
Identification Plate ...................................................24
Engine Serial Number .............................................24
CVT Number ...........................................................25
Dimensions .......................................................... ....25
Wheels & Tires ........................................................25
PRECAUTION ..............................................26
PRECAUTIONS .................................................26
Description ........................................................... ....26
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
26
Precautions For Xenon Headlamp Service .............26
Procedures without Cowl Top Cover .......................27
Cautions in Removing Battery Terminal and AV
Control Unit .......................................................... ....
27
General Precautions ................................................27
Three Way Catalyst .................................................29
Fuel (Regular Unleaded Gasoline Recommend-
ed) QR25DE ........................................................ ....
29
Fuel (Regular Unleaded Gasoline Recommend-
ed) VQ35DE ........................................................ ....
29
Multiport Fuel Injection System or Engine Control
System ................................................................. ....
29
Hoses ......................................................................29
Engine Oils ..............................................................30
Air Conditioning .......................................................31
LIFTING POINT .................................................32
Special Service Tool ................................................32
Pantograph Jack ......................................................32
Garage Jack and Safety Stand ................................33
2-Pole Lift ................................................................34
Board-on Lift ............................................................35
TOW TRUCK TOWING .....................................36
Tow Truck Towing ...................................................36
Vehicle Recovery (Freeing a Stuck Vehicle) ...........36
WIRING DIAGRAM ......................................38
CONSULT CHECKING SYSTEM .....................38
Wiring Diagram .................................................... ....38
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HOW TO FOLLOW TROUBLE DIAGNOSES
GI-7
< HOW TO USE THIS MANUAL >
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Key to Symbols Signifying M easurements or ProceduresINFOID:0000000009462975
JPAIA0982GB
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GI-28
< PRECAUTION >
PRECAUTIONS
• Before starting repairs which do not require battery power:Turn off ignition switch.
Disconnect the negative battery terminal.
• If the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.
• To prevent serious burns: Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.
• Dispose of drained oil or the solvent used for cleaning parts in an
appropriate manner.
• Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel spray
and possibly a fire.
• Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.
• Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new ones.
• Replace inner and outer races of tapered roller bearings and needle bearings as a set.
• Arrange the disassembled parts in accordance with their assembled locations and sequence.
• Do not touch the terminals of electrical com ponents which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.
• After disconnecting vacuum or air hoses, atta ch a tag to indicate the proper connection.
• Use only the fluids and lubricants specified in this manual.
• Use approved bonding agent, sealants or their equivalents when required.
• Use hand tools, power tools (disassembly only) and recommended special tools where specified for safe and efficient service repairs.
• When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.
• Before servicing the vehicle: Protect fenders, upholstery and carpeting with appropriate covers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
SEF289H
SGI233
JPAIA0335ZZ
SGI234
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SERVICE INFORMATION FOR ELECTRICAL INCIDENTGI-39
< BASIC INSPECTION >
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SERVICE INFORMATION FO R ELECTRICAL INCIDENT
Work FlowINFOID:0000000009463011
WORK FLOW
Control Units and Electrical PartsINFOID:0000000009463012
PRECAUTIONS
• Never reverse polarity of battery terminals.
• Install only parts specified for a vehicle.
• Before replacing the control unit, check the i nput and output and functions of the component parts.
• Do not apply excessive force when disconnecting a connector.
SGI838
STEP DESCRIPTION
STEP 1 Get detailed information about the conditions and the environment when the incident occurred.
The following are key pieces of information required to make a good analysis:
WHAT Vehicle Model, Engine, Transmission/Transaxle and the System (i.e. Radio).
WHEN Date, Time of Day, Weather Conditions, Frequency.
WHERE Road Conditions, Altitude and Traffic Situation.
HOW System Symptoms, Operating Conditions (Other Components Interaction).
Service History and if any After Market Accessories have been installed.
STEP 2 Operate the system, road test if necessary.
Verify the parameter of the incident.
If the problem cannot be duplicated, refer to “Incident Simulation Tests”.
STEP 3 Get the proper diagnosis materials together including:
• Power Supply Routing
• System Operation Descriptions
• Applicable Service Manual Sections
• Check for any Service Bulletins
Identify where to begin diagnosis based upon your knowledge of the system operation and the customer comments.
STEP 4 Inspect the system for mechanical binding, loose connectors or wiring damage.
Determine which circuits and components are involved and diagnose using the Power Supply Routing and Harness Lay-
outs.
STEP 5 Repair or replace the incident circuit or component.
STEP 6 Operate the system in all modes. Verify the system works properly under all conditions. Make sure you have not inad-
vertently created a new incident during your diagnosis or repair steps.
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SERVICE INFORMATION FOR ELECTRICAL INCIDENTGI-47
< BASIC INSPECTION >
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no voltage; open is between fuse block and SW1 (point A).
• Close SW1 and probe at relay. voltage; open is further down the circuit than the relay.
no voltage; open is between SW1 and relay (point B).
• Close the relay and probe at the solenoid. voltage; open is further down the circuit than the solenoid.
no voltage; open is between relay and solenoid (point C).
Any powered circuit can be diagnosed using the approach in the previous example.
TESTING FOR “SHORTS” IN THE CIRCUIT
To simplify the discussion of shorts in the system, please refer to the following schematic.
Resistance Check Method
• Disconnect the battery negative cable and remove the blown fuse.
• Disconnect all loads (SW1 open, relay disconnected and solenoid disconnected) powered through the fuse.
• Connect one probe of the DMM to the load side of the fuse terminal. Connect the other probe to a known
good ground.
• With SW1 open, check for continuity. continuity; short is between fuse terminal and SW1 (point A).
no continuity; short is further down the circuit than SW1.
• Close SW1 and disconnect the relay. Put probes at the load side of fuse terminal and a known good ground. Then, check for continuity.
continuity; short is between SW1 and the relay (point B).
no continuity; short is further down the circuit than the relay.
• Close SW1 and jump the relay contacts with jumper wir e. Put probes at the load side of fuse terminal and a
known good ground. Then, check for continuity.
continuity; short is between relay and solenoid (point C).
no continuity; check solenoid, retrace steps.
Voltage Check Method
• Remove the blown fuse and disconnect all loads (i .e. SW1 open, relay disconnected and solenoid discon-
nected) powered through the fuse.
• Turn the ignition key to the ON or START position. Veri fy battery voltage at the battery + side of the fuse ter-
minal (one lead on the battery + terminal side of the fuse block and one lead on a known good ground).
• With SW1 open and the DMM leads across both fuse terminals, check for voltage.
voltage; short is between fuse block and SW1 (point A).
no voltage; short is further down the circuit than SW1.
• With SW1 closed, relay and solenoid disconnected and t he DMM leads across both fuse terminals, check for
voltage.
voltage; short is between SW1 and the relay (point B).
no voltage; short is further down the circuit than the relay.
• With SW1 closed, relay contacts jumped with fused jumper wire check for voltage. voltage; short is down the circuit of the relay or between the relay and the disconnected solenoid (point C).
no voltage; retrace steps and check power to fuse block.
GROUND INSPECTION
• Ground connections are very important to the proper operation of electrical and electronic circuits. Ground
connections are often exposed to moisture, dirt and ot her corrosive elements. The corrosion (rust) can
become an unwanted resistance. This unwanted re sistance can change the way a circuit works.
• Electronically controlled circuits are very sens itive to proper grounding. A loose or corroded ground can
drastically affect an electronically controlled circuit. A poor or corroded ground can easily affect the circuit.
Even when the ground connection looks clean, there c an be a thin film of rust on the surface.
SGI847-A
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM