
5 CHECK POWER SUPPLY-II
1. Disconnect ECM relay. (For ECM relay location, refer to ªEngine Control Compartment Parts Locationº.)
2. Check voltage between ECM relay terminals 1, 6 and ground with CONSULT-II or tester.
SEF101Y
OK or NG
OK©GO TO 7.
NG©GO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
+10A fuses
+Harness connectors E76, F36
+Harness connectors M72, F44 (where fitted)
+Harness connectors M11, E106 (LHD models) (where fitted)
+Harness connectors M78, E120 (RHD models) (where fitted)
+Joint connector F46 (where fitted)
+Harness for open or short between ECM relay and battery
©Repair open circuit or short to ground or short to power in harness or connectors.
7 CHECK OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 31 and ECM relay terminal 2.
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OK©Go to ªIGNITION SIGNALº, EC-500.
NG©GO TO 8.
8 DETECT MALFUNCTIONING PART
Check the harness for open or short between ECM relay and ECM.
©Repair open circuit or short to ground or short to power in harness or connectors.
TROUBLE DIAGNOSIS FOR POWER SUPPLYQG18DE
Main Power Supply and Ground Circuit (Cont'd)
EC-150

6 CHECK POWER SUPPLY-II
1. Disconnect ECM relay.
(For ECM relay location, refer to ªEngine Control Component Parts Locationº.)
2. Check voltage between ECM relay terminals 1, 6 and ground with CONSULT-II or tester.
SEF101Y
OK or NG
OK©GO TO 8.
NG©GO TO 7.
7 DETECT MALFUNCTIONING PART
Check the following.
+15A fuse and 10A fuse
+Harness connectors E76, F36 (where fitted)
+Harness for open or short between ECM relay and battery
©Repair open circuit or short to ground or short to power in harness or connectors.
8 CHECK OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 31 and ECM relay terminal 2.
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OK (Models with Euro-
OBD system)©Go to ªIGNITION SIGNALº, EC-1004.
OK (Models without
Euro-OBD system)©Go to ªDTC P1320 IGNITION SIGNALº, EC-900.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
TROUBLE DIAGNOSIS FOR POWER SUPPLYSR20DE
Main Power Supply and Ground Circuit (Cont'd)
EC-675

5 CHECK ECM POWER SUPPLY CIRCUIT-II
1. Reconnect ECM harness connector.
2. Turn ignition switch ªONº and then ªOFFº.
3. Check voltage between ECM terminals 107, 108, 109 and ground with CONSULT-II or tester.
SEF896Y
OK or NG
OK©Check electronic control fuel injection pump power supply circuit. Refer to ªDiagnostic
Procedureº, EC-1251.
NG (Battery voltage
does not exist.)©GO TO 6.
NG (Battery voltage
exists for more than a
few seconds.)©GO TO 10.
6 CHECK ECM POWER SUPPLY CIRCUIT-III
1. Disconnect ECM relay. (For ECM relay location, refer to ªEngine control component parts locationº, EC-1071.)
2. Check voltage between relay terminals 1, 6 and ground with CONSULT-II or tester.
SEF399Y
OK or NG
OK©GO TO 8.
NG©GO TO 7.
7 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E76, F13 (where fitted)
+10A fuse
+20A fuse
+Harness for open or short between ECM relay and battery
©Repair open circuit or short to ground or short to power in harness or connectors.
TROUBLE DIAGNOSIS FOR POWER SUPPLYYD22DDTI
Main Power Supply and Ground Circuit (Cont'd)
EC-1140

Diagnostic ProcedureNLEC0748
1 CHECK ECM POWER SUPPLY CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM relay. (For ECM relay location, refer to ªEngine control component parts locationº, EC-1071.)
3. Check voltage between ECM terminals 1, 6 and ground with CONSULT-II or tester.
SEF399Y
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E76, F13 (where fitted)
+10A fuse
+20A fuse
+Harness for open and short between ECM relay and battery
©Repair open circuit or short to ground or short to power in harness or connectors.
3 CHECK ECM INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminals 107, 108, 109 and ECM relay terminal 7. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 4.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
4 CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 325 and ECM relay terminal 2. Refer to Wiring Diagram.
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 6.
NG©GO TO 5.
DTC P1620 ECM RLYYD22DDTI
Diagnostic Procedure
EC-1258

3 CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT-II
1. Turn ignition switch ªOFFº.
2. Disconnect ECM relay. (For ECM relay location, refer to ªEngine control component parts locationº, EC-1071.)
3. Check harness continuity between ECM relay terminal 5 and EGR volume control valve terminals 2 and 5. Refer to
Wiring Diagram.
Continuity should exist.
OK or NG
OK©GO TO 4.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
4 CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT-III
Check voltage between ECM relay terminal 3 and ground with CONSULT-II or tester.
SEF413Y
OK or NG
OK©GO TO 6.
NG©GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E76, F13
+10A fuse
+Harness for open or short between ECM relay and battery
©Repair open circuit or short to ground or short to power in harness or connectors.
6 CHECK ECM RELAY
1. Apply 12V direct current between ECM relay terminals 1 and 2.
2. Check continuity between ECM relay terminals 3 and 5, 6 and 7.
SEF296X
OK or NG
OK©GO TO 7.
NG©Replace ECM relay.
EGR VOLUME CONTROL SYSTEMYD22DDTI
Diagnostic Procedure (Cont'd)
EC-1282

Electrical Components Inspection ...........................164
WARNING CHIME.......................................................165
Component Parts and Harness Connector
Location ...................................................................165
System Description ..................................................165
Wiring Diagram - CHIME - ......................................166
Trouble Diagnoses...................................................170
FRONT WIPER AND WASHER..................................176
System Description ..................................................176
Wiring Diagram - WIPER - ......................................178
Removal and Installation .........................................182
Washer Nozzle Adjustment .....................................183
Washer Tube Layout ...............................................183
REAR WIPER AND WASHER....................................184
Wiring Diagram - WIP/R -........................................184
Removal and Installation .........................................188
Washer Nozzle Adjustment .....................................188
Washer Tube Layout ...............................................189
HEADLAMP WASHER................................................190
Wiring Diagram - HLC - ...........................................190
Washer Tube Layout ...............................................192
HORN...........................................................................193
Wiring Diagram - HORN - .......................................193
CIGARETTE LIGHTER................................................195
Wiring Diagram - CIGAR -.......................................195
CLOCK.........................................................................196
Wiring Diagram - CLOCK -......................................196
REAR WINDOW DEFOGGER.....................................198
System Description ..................................................198
Wiring Diagram - DEF - ...........................................199
Trouble Diagnoses...................................................203
Electrical Components Inspection ...........................205
Filament Check ........................................................206
Filament Repair .......................................................207
AUDIO..........................................................................208
System Description ..................................................208
Schematic ................................................................210
Wiring Diagram - AUDIO - .......................................212
Trouble Diagnoses...................................................230
Inspection.................................................................232
AUDIO ANTENNA.......................................................233
Location of Antenna .................................................233
Antenna Rod Replacement .....................................233
HEATED SEAT............................................................234
Wiring Diagram - H/SEAT - .....................................234
POWER SUNROOF.....................................................238
Wiring Diagram - SROOF - .....................................238
Trouble Diagnoses...................................................240
DOOR MIRROR...........................................................241
Wiring Diagram - MIRROR - ...................................241
POWER WINDOW.......................................................245
System Description ..................................................245Schematic ................................................................247
Wiring Diagram - WINDOW - ..................................248
Trouble Diagnoses...................................................256
POWER DOOR LOCK.................................................257
Component Parts and Harness Connector
Location/LHD Models ..............................................257
System Description/LHD Models .............................257
Schematic/LHD Models ...........................................258
Wiring Diagram - D/LOCK -/LHD Models................260
Trouble Diagnoses/LHD Models..............................272
POWER DOOR LOCK - SUPER LOCK -...................281
System Description/RHD Models ............................281
Schematic/RHD Models...........................................284
Wiring Diagram - S/LOCK -/RHD Models ...............286
Trouble Diagnoses/RHD Models .............................300
MULTI-REMOTE CONTROL SYSTEM.......................314
System Description ..................................................314
Wiring Diagram - MULTI - .......................................315
Trouble Diagnoses...................................................319
ID Code Entry Procedure ........................................324
Remote Controller Battery Replacement.................325
TIME CONTROL UNIT................................................326
Description ...............................................................326
Trouble Diagnoses...................................................327
Schematic ................................................................330
NATS (NISSAN ANTI-THEFT SYSTEM).....................334
Component Parts and Harness Connector
Location ...................................................................334
System Description ..................................................334
System Composition ................................................335
Schematic ................................................................336
Wiring Diagram - NATS -.........................................338
CONSULT-II .............................................................346
Trouble Diagnoses...................................................349
How to Replace NATS IMMU ..................................369
NAVIGATION SYSTEM...............................................370
Precautions ..............................................................370
Component Parts Location ......................................370
System Description ..................................................370
Schematic ................................................................379
Wiring Diagram - NAVI - ..........................................381
Self-diagnosis Mode ................................................401
Confirmation/Adjustment Mode ...............................404
Control Panel Mode .................................................416
Guide Volume Setting ..............................................423
Anti-theft System .....................................................424
CONSULT-II .............................................................425
Trouble Diagnoses...................................................426
This Condition Is Not Abnormal...............................432
Program Loading .....................................................441
ELECTRICAL UNITS LOCATION...............................442
Engine Compartment ...............................................442
CONTENTS(Cont'd)
EL-2

Component Parts and Harness Connector
Location
NLEL0441
NEL781
System DescriptionNLEL0442UNIFIED CONTROL METERNLEL0442S01+Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled totally
by control unit built-in combination meter.
+Digital meter is adopted for odo/trip meter.*
*The record of the odo meter is kept even if the battery cable is disconnected. The record of the trip meter
is erased when the battery cable is disconnected.
+Odo/trip meter segment can be checked in diagnosis mode.
+Meter/gauge can be checked in diagnosis mode.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METERNLEL0442S02
SEL394X
NOTE:
Turn ignition switch to the ªONº position to operate odo/trip meter.
METERS AND GAUGES
Component Parts and Harness Connector Location
EL-130

PrecautionsNLEL0510WARNING:
Do not attempt to disassemble the monitor. Parts of the monitor have high voltages that can result in
severe and dangerous electric shock.
CAUTION:
+Do not reverse battery connections.
+Do not attach unauthorized parts.
+Protect the unit from severe impact.
NOTE:
Before beginning repair, determine whether or not the unit is defective. Refer to ªThis Condition Is Not
Abnormalº (EL-432).
Component Parts LocationNLEL0511For details, refer to ªELECTRICAL UNIT LAYOUTº (EL-442) and ªHARNESS LAYOUTº (EL-452).
SEL504X
System DescriptionNLEL0512OUTLINENLEL0512S01The Navigation System (Multi-AV System) relies upon three sens-
ing devices in order to determine vehicle location at regular time
intervals.
1. Vehicle speed sensor: Determines the distance the vehicle has
traveled.
2. Gyro (Angular velocity sensor): Determines vehicle steering
angle and directional change.
3. GPS antenna (GPS data): Determines vehicle forward move-
ment and direction.
The data provided by the three sensing functions together with a
comparison of the mapping information read from the CD-ROM
drive permit accurate determination of the vehicle's current location
and subsequent course (map matching). The information appears
on a liquid crystal display.
This comparison of GPS data (vehicle position sensing) and map
matching permits precise determination of vehicle location.
SEL684V
Position Sensor Operating PrinciplesNLEL0512S0101The sensor determines current vehicle location by calculating the
previously sensed position, the distance traveled from this position,
and the directional changes occurring during this travel.
1. Distance traveled
The distance traveled is calculated using signals received from
the vehicle speed sensor. The sensor automatically compen-
sates for the slightly reduced wheel and tire diameter resulting
from tire wear.
2. Forward movement (Direction)
Changes in the direction of forward movement are calculated
by the gyro (angular velocity sensor) and the GPS antenna
NAVIGATION SYSTEM
Precautions
EL-370