2001 NISSAN ALMERA fuse

no voltage; short is further down the circuit than the relay.
5) 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 INSPECTIONNJGI0005S0304Ground connections are very important to the proper operation of
electrical and electronic circuits. Ground connections are often
exposed to moisture, dirt and other corrosive elements. The corro-
sion (rust) can become an unwanted resistance. This unwanted
resistance can change the way a circuit works.
Electronically controlled circuits are very sensitive to proper
grounding. A loose or corroded ground can drastically affect an
electronically controlled circuit. A poor or corroded ground can eas-
ily affect the circuit. Even when the ground connection looks clean,
there can be a thin film of rust on the surface.
When inspecting a ground connection follow these rules:
1) Remove the ground bolt or screw.
2) Inspect all mating surfaces for tarnish, dirt, rust, etc.
3) Clean as required to assure good contact.
4) Reinstall bolt or screw securely.
5) Inspect for ªadd-onº accessories which may be interfering with
the ground circuit.
6) If several wires are crimped into one ground eyelet terminal,
check for proper crimps. Make sure all of the wires are clean,
securely fastened and providing a good ground path. If multiple
wires are cased in one eyelet make sure no ground wires have
excess wire insulation.
SGI853
VOLTAGE DROP TESTSNJGI0005S0305Voltage drop tests are often used to find components or circuits
which have excessive resistance. A voltage drop in a circuit is
caused by a resistancewhen the circuit is in operation.
Check the wire in the illustration. When measuring resistance with
ohmmeter, contact by a single strand of wire will give reading of 0
ohms. This would indicate a good circuit. When the circuit operates,
this single strand of wire is not able to carry the current. The single
HOW TO PERFORM EFFICIENT DIAGNOSES FOR AN ELECTRICAL INCIDENT
Circuit Inspection (Cont'd)
GI-27

Key to Symbols Signifying Measurements or
Procedures
NJGI0006S02
Symbol Symbol explanation Symbol Symbol explanation
Check after disconnecting the con-
nector to be measured.Procedure with Generic Scan Tool
(GST, OBD-II scan tool)
Check after connecting the connec-
tor to be measured.Procedure without CONSULT-II or
GST
Insert key into ignition switch.A/C switch is ªOFFº.
Remove key from ignition switch.A/C switch is ªONº.
Turn ignition switch to ªOFFº posi-
tion.REC switch is ªONº.
Turn ignition switch to ªONº position.REC switch is ªOFFº.
Turn ignition switch to ªSTARTº posi-
tion.Fan switch is ªONº. (At any position
except for ªOFFº position)
Turn ignition switch from ªOFFº to
ªACCº position.Fan switch is ªOFFº.
Turn ignition switch from ªACCº to
ªOFFº position.Apply positive voltage from battery
with fuse directly to components.
Turn ignition switch from ªOFFº to
ªONº position.Drive vehicle.
Turn ignition switch from ªONº to
ªOFFº position.Disconnect battery negative cable.
Do not start engine, or check with
engine stopped.Depress brake pedal.
Start engine, or check with engine
running.Release brake pedal.
Apply parking brake.Depress accelerator pedal.
Release parking brake.Release accelerator pedal.
HOW TO FOLLOW TROUBLE DIAGNOSES
Key to Symbols Signifying Measurements or Procedures
GI-33

O-RING AND REFRIGERANT CONNECTIONNJHA0115S02
RHA790H
CAUTION:
The new and former refrigerant connections in some systems use different O-ring configurations. Do
not confuse O-rings since they are not interchangeable. If a wrong O-ring is installed, refrigerant will
leak at, or around, the connection.
O-Ring Part Numbers and SpecificationsNJHA0115S0201
SHA814E
Connection
typeO-ring
sizePart number D mm (in) W mm (in)
New 8 92471 N8210 6.8 (0.268) 1.85 (0.0728)
New
1292472 N8210 10.9 (0.429) 2.43 (0.0957)
Former 92475 71L00 11.0 (0.433) 2.40 (0.0945)
New
1692473 N8210 13.6 (0.535) 2.43 (0.0957)
Former 92475 72L00 14.3 (0.563) 2.30 (0.0906)
New 19 92474 N8210 16.5 (0.650) 2.43 (0.0957)
WARNING:
Make sure all refrigerant is discharged into the recycling equipment and the pressure in the system
is less than atmospheric pressure. Then gradually loosen the discharge side hose fitting and remove
it.
CAUTION:
When replacing or cleaning refrigerant cycle components, observe the following.
+When the compressor is removed, store it in the same position as it is when mounted on the car.
Failure to do so will cause lubricant to enter the low pressure chamber.
+When connecting tubes, always use a torque wrench and a back-up wrench.
+After disconnecting tubes, immediately plug all openings to prevent entry of dirt and moisture.
PRECAUTIONS
Precautions for Refrigerant Connection (Cont'd)
HA-4

RHA623H
COMPONENT DESCRIPTIONNJHA0209Intake Door MotorNJHA0209S01The intake door motor is attached to the intake unit. It rotates so
that air is drawn from inlets set by the heater control panel. Motor
rotation is conveyed to a lever which activates the intake door.
DIAGNOSTIC PROCEDURE FOR INTAKE DOOR
MOTOR CIRCUIT
NJHA0210
1 CHECK POWER SUPPLY FOR HEATER CONTROL PANEL
Do approx. 12 volts exist between heater control panel harness terminal No. 1 and body ground?
NHA483
YesorNo
Ye s©GO TO 2.
No©Check 10A (No. 15) fuse at fuse block. Refer to Sedan: EL-11 (QG), EL-19 (YD), Hatch-
back: EL-28, ªWiring Diagram Ð POWER к.
2 CHECK RECIRCULATION (REC) SWITCH
Refer to HA-39.
OK or NG
OK©GO TO 3.
NG©Replace recirculation (REC) switch.
TROUBLE DIAGNOSES
Intake Door (Cont'd)
HA-37

BLOWER MOTOR CIRCUIT=NJHA0147SYMPTOM:
+Blower motor does not rotate.
Symptom
table No.INCIDENT
1 Fan fails to rotate.
2 Fan does not rotate at 1-speed.
3 Fan does not rotate at 2-speed.
4 Fan does not rotate at 3-speed.
5 Fan does not rotate at 4-speed.
1 DIAGNOSTIC PROCEDURE
Check if blower motor rotates properly at each fan speed.
Conduct checks as per symptom table at above.
1©GO TO 2.
2, 3, 4©GO TO 8.
5©GO TO 10.
2 CHECK POWER SUPPLY FOR BLOWER MOTOR
1. Disconnect blower motor harness connector.
2. Do approx. 12 volts exist between blower motor harness terminal No. 1 and body ground?
RHA343FD
YesorNo
Ye s©GO TO 3.
No©Check 15A (Nos. 14 and 16) fuses at fuse block. Refer to Sedan: EL-11 (QG), EL-19
(YD), Hatchback: EL-28, ªWiring Diagram Ð POWER к.
TROUBLE DIAGNOSES
Blower Motor (Cont'd)
HA-49

4 CHECK POWER SUPPLY FOR A/C RELAY
Disconnect A/C relay.
Do approx. 12 volts exist between A/C relay harness terminal Nos. 1, 5 and body ground?
RHA635H
YesorNo
Ye s©GO TO 5.
No©Check power supply circuit and 10A (No. 15) fuse at fuse block. Refer to Sedan: EL-11,
Hatchback: EL-28, ªWiring Diagram Ð POWER к.
5 CHECK A/C RELAY AFTER DISCONNECTING IT
Refer to HA-66.
OK or NG
OK©Reconnect A/C relay. GO TO 6.
NG©Replace A/C relay.
6 CHECK COIL SIDE CIRCUIT OF A/C RELAY
Do approx. 12 volts exist between ECM harness terminal No. 16 or 23 and body ground?
RHA764H
YesorNo
Ye s©GO TO 8.
No©Disconnect A/C relay. Disconnect ECM harness connector. GO TO 7.
TROUBLE DIAGNOSES
Magnet Clutch (Cont'd)
HA-57

3 CHECK CIRCUIT CONTINUITY BETWEEN A/C RELAY AND COMPRESSOR HARNESS
Check circuit continuity between A/C relay harness terminal No. 3 and compressor harness terminal No. 1.
RHA634H
Continuity should exist.
If OK, check harness for short.
OK or NG
OK©GO TO 4.
NG©Repair harness or connector.
4 CHECK POWER SUPPLY FOR A/C RELAY
Disconnect A/C relay.
Do approx. 12 volts exist between A/C relay harness terminal Nos. 1, 5 and body ground?
RHA635H
YesorNo
Ye s©GO TO 5.
No©Check power supply circuit and 10A (No. 15) fuse at fuse block. Refer to Sedan: EL-11,
Hatchback: EL-28, ªWiring Diagram Ð POWER к.
5 CHECK A/C RELAY AFTER DISCONNECTING IT
Refer to HA-66.
OK or NG
OK©Reconnect A/C relay. GO TO 6.
NG©Replace A/C relay.
TROUBLE DIAGNOSES
Magnet Clutch (Cont'd)
HA-62

Electronic fuel injection pump ........ EC-618, 716,
723, 757, 764, 771, 778, 785, 803
Engine compartment ................................. BT-78
Engine control circuit diagram .......... EC-25, 606
Engine control component parts
location .......................................... EC-21, 603
Engine control module (ECM) ....... EC-391, 659,
714, 792, 794, 799, 801
Engine control system diagram and
chart .............................................. EC-29, 608
Engine coolant temperature sensor
(ECTS) ........................................ EC-201, 680
Engine fail-safe system ........................... EC-154
Engine oil precautions .................................. GI-7
Engine outer component parts ................. EM-11
Engine removal ................................ EM-51, 137
Engine room - See Engine
compartment .......................................... BT-78
Engine serial number ................................. GI-41
Evaporative emission (EVAP)
system ................................................... EC-36
Exhaust gas recirculation (EGR)
valve .................................... EC-343, 425, 491
Exhaust system ................................... FE-15, 32
Exterior ...................................................... BT-47
F
F/PUMP - Wiring diagram ....................... EC-563
FR02 - Wiring diagram ... EC-219, 239, 247, 451
FR02/H - Wiring diagram ................ EC-254, 458
FUEL - Wiring diagram ................... EC-299, 307
Fan switch ................................................. HA-54
Final drive (FF A/T) .................................. AT-442
Final drive (FF M/T) .............. MT-44, 77, 93, 107
Finisher, interior - See Trim ....................... BT-31
Finisher, trunk lid ....................................... BT-45
Floor trim ................................................... BT-31
Fluid temperature sensor (A/T) ................ AT-194
Fluids ........................................................ MA-16
Flywheel (clutch) ....................................... CL-22
Flywheel runout ................................ EM-62, 154
Fog lamp, front, removal and
installation ................................................ BT-7
Fog lamp, front .......................................... EL-89
Fork rod (M/T) .............................. MT-32, 56, 94
Forward clutch ......................................... AT-412
Freeze frame data .............................. EC-61, 72
Front axle .................................................... AX-2
Front bumper ............................................... BT-7
Front combination lamp removal and
installation ................................................ BT-7
Front disc brake ........................................ BR-27
Front door .................................................. BT-16
Front fog lamp removal and
installation ................................................ BT-7
Front fog lamp ........................................... EL-89
Front heated oxygen sensor (HO2S)
heater .......................................... EC-252, 457Front heated oxygen sensor (HO2S) ..... EC-216,
224, 230, 236, 245, 450
Front seat belt ............................................. RS-5
Front seat .................................................. BT-56
Front suspension ........................................ SU-2
Front washer ............................................ EL-215
Front wiper ............................................... EL-215
Fuel cut control (at no load & high
engine speed) ............................... EC-36, 612
Fuel gauge ............................................... EL-144
Fuel injection system .............. EC-297, 305, 610
Fuel injector ............................................ EC-541
Fuel precautions ........................................... GI-8
Fuel pressure check ................................. EC-40
Fuel pressure regulator ............................. EC-41
Fuel pressure release ............................... EC-40
Fuel pump relay ...................................... EC-561
Fuel pump ............................................... EC-561
Fuel system ........................................... FE-5, 20
Fuel tank vacuum relief valve ................... EC-37
Fuse block ............................................... EL-577
Fuse ........................................................... EL-38
Fusible link ................................................. EL-38
G
GLOW - Wiring diagram ......................... EC-806
Garage jack and safety stand .................... GI-45
Gauges .................................................... EL-144
Gear components (M/T) ............... MT-31, 55, 93
Generator - See Alternator ....................... SC-31
Generic scan tool (GST) ........................... EC-94
Glass .......................................................... BT-17
Glow plug ................................................ EC-806
Glow relay ............................................... EC-806
Grease ...................................................... MA-16
Ground distribution .................................... EL-39
H
H/LAMP - Wiring diagram ................... EL-60, 61
HEATER - Wiring diagram ........................ HA-24
HFC134a (R134a) system
precaution ................................................ HA-2
HFC134a (R134a) system service
procedure .............................................. HA-78
HFC134a (R134a) system service
tools ....................................................... HA-11
HFC134a system service equipment
precaution ................................................ HA-6
HORN - Wiring diagram .................. EL-234, 235
HSEAT - Wiring diagram ................. EL-288, 290
Harness connector ...................................... EL-6
Harness layout ......................................... EL-522
Hazard warning lamp ................................ EL-96
Headlamp removal and installation ............. BT-7
Headlamp washer .................................... EL-231
Headlamp .................................................. EL-60
ALPHABETICAL INDEX
IDX-4