
NLGI0005
Work FlowNLGI0005S01
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:
WHATVehicle Model, Engine, Transmission and the System (i.e. Radio).
WHENDate, Time of Day, Weather Conditions, Frequency.
WHERERoad Conditions, Altitude and Traffic Situation.
HOWSystem 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 can not be duplicated, refer to“Incident Simulation Tests”next page.
STEP 3 Get the proper diagnoses materials together including:
POWER SUPPLY ROUTING
System Operation Descriptions
Applicable Service Manual Sections
Check for any Service Bulletin.
Identify where to begin diagnoses based upon your knowledge of the system operation and the cus-
tomer 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 Layouts.
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 inadvertently created a new incident during your diagnoses or repair steps.
HOW TO PERFORM EFFICIENT DIAGNOSES FOR AN ELECTRICAL INCIDENT
Work Flow
GI-21

The second method is to put the suspect component into a freezer
long enough for any water to freeze. Reinstall the part into the car
and check for the reoccurrence of the incident. If it occurs, repair
or replace the component.
SGI844
WATER INTRUSIONNLGI0005S0205The incident may occur only during high humidity or in rainy/snowy
weather. In such cases the incident could be caused by water
intrusion on an electrical part. This can be simulated by soaking the
car or running it through a car wash.
Do not spray water directly on any electrical components.
SGI845
ELECTRICAL LOADNLGI0005S0206The incident may be electrical load sensitive. Perform diagnoses
with all accessories (including A/C, rear window defogger, radio,
fog lamps) turned on.
COLD OR HOT START UPNLGI0005S0207On some occasions an electrical incident may occur only when the
car is started cold. Or it may occur when the car is restarted hot
shortly after being turned off. In these cases you may have to keep
the car overnight to make a proper diagnoses.
Circuit InspectionNLGI0005S03INTRODUCTIONNLGI0005S0301In general, testing electrical circuits is an easy task if it is
approached in a logical and organized method. Before beginning
it is important to have all available information on the system to be
tested. Also, get a thorough understanding of system operation.
Then you will be able to use the appropriate equipment and follow
the correct test procedure.
You may have to simulate vehicle vibrations while testing electrical
components.Gently shakethe wiring harness or electrical com-
ponent to do this.
OPEN A circuit is open when there is no continuity through a section of
the circuit.
SHORT There are two types of shorts.
+SHORT CIRCUIT When a circuit contacts another circuit
and causes the normal resistance to
change.
+SHORT TO GROUND When a circuit contacts a ground source
and grounds the circuit.
HOW TO PERFORM EFFICIENT DIAGNOSES FOR AN ELECTRICAL INCIDENT
Incident Simulation Tests (Cont’d)
GI-24

N
NATS (Nissan Anti-theft System)
precautions ................................................... GI-3
NATS (Nissan Anti-theft System) ............ EL-334
NATS - Wiring diagram ............................ EL-338
NVH troubleshooting (AX) ........................... AX-3
NVH troubleshooting (BR) .......................... BR-6
NVH troubleshooting (MT) .......................... MT-9
NVH troubleshooting (ST) ........................... ST-5
NVH troubleshooting (SU) ........................ SU-17
NVH troubleshooting CL ............................. CL-4
NVIS (Nissan vehicle immobiliser sys-
tem) precautions ....................................... GI-3
Neutral position switch . EC-402, 490, 931, 1016
O
Oil pan (engine) ......................... EM-20, 91, 170
Oil pressure (engine) ...................... LC-5, 25, 44
Oil pump (engine) ........................... LC-5, 25, 44
Oil pump regulator valve (engine) .. LC-7, 27, 46
Oil seal replacement (engine) .......... EM-31, 105
On board diagnostic system ... EC-59, 583, 1096
Operating cylinder (clutch) ........................ CL-14
P
PCV (positive crankcase ventilation) ....... EC-42,
576, 1082
PGC/V - Wiring diagram . EC-334, 460, 854, 988
PNP/SW - Wiring diagram ..... EC-404, 491, 933,
1017, 1297
POWER - Wiring diagram ................... EL-14, 24
PST/SW - Wiring diagram ............ EC-524, 1040
Park/Neutral position switch .. EC-402, 490, 931,
1016, 1297
Park/neutral position switch (A/T) .............. AT-66
Park/neutral position switch (M/T) ............ MT-16
Parking brake control ................................ BR-40
Parking lamp .............................................. EL-87
Piston assembly ....................... EM-60, 142, 236
Piston pin inspection ................ EM-54, 134, 226
Piston ring inspection ............... EM-54, 135, 226
Piston to bore clearance .......... EM-56, 137, 228
Power antenna ........................................ EL-233
Power door lock ....................................... EL-257
Power door mirror .................................... EL-241
Power steering fluid level ............................ ST-7
Power steering gear .................................. ST-15
Power steering hydraulic pressure .............. ST-9
Power steering oil pressure switch ........ EC-523,
1039
Power steering oil pump ..................... ST-21, 22
Power steering system bleeding ................. ST-8
Power supply routing ................................... EL-9Power transistor ............................ EC-907, 1010
Power window ......................................... EL-245
Precautions (General) .................................. GI-4
Pressure plate - See Clutch cover ............ CL-22
Pressure test (A/T) ..................................... AT-52
Priming pump .............................. EC-1094,1111
Q
Quick-glow system ................................ EC-1267
R
RR02 - Wiring diagram .. EC-230, 240, 249, 258,
427, 755, 764, 773, 781, 957
RR02/H - Wiring diagram .............. EC-265, 434,
788, 964
Radiator fan - See Cooling fan ................. LC-37
Radiator ......................................... LC-17, 37, 58
Radio - See Audio ................................... EL-208
Rear air spoiler .......................................... BT-38
Rear axle (disc brake type) ....................... AX-23
Rear axle ................................................... AX-21
Rear bumper .............................................. BT-10
Rear combination lamp removal and
installation .............................................. BT-38
Rear disc brake .................................. BR-28, 36
Rear door ................................................... BT-13
Rear heated oxygen sensor (HO2S)
heater .......................... EC-263, 433, 786, 963
Rear heated oxygen sensor (HO2S) ..... EC-227,
237, 246, 256, 426, 752, 761, 770, 779, 956
Rear seat belt ............................................. RS-7
Rear seat ................................................... BT-49
Rear suspension ....................................... SU-17
Rear window defogger ............................ EL-198
Rear window .............................................. BT-59
Refrigerant connection precaution .............. HA-3
Refrigerant general precaution ................... HA-2
Refrigerant lines ........................................ HA-98
Refrigeration cycle .................................... HA-12
Release bearing (clutch) ..................... CL-17, 20
Removal and installation (A/T) ................ AT-206
Resistor ......................................... EC-908, 1011
Reverse idler shaft (M/T) .................... MT-24, 63
Reverse lamp switch (M/T) - See
Back-up lamp switch (M/T) ................... MT-16
Reverse main gear (M/T) .................... MT-25, 63
Revolution sensor (A/T) ....................... AT-83, 89
Road wheel size ......................................... GI-41
Roof trim .................................................... BT-35
Room lamp - See Interior lamp ............... EL-116
ALPHABETICAL INDEX
IDX-6