1999 NISSAN PICK-UP Repair Manual

DIAGNOSTIC PROCEDURE
SYMPTOM: Sunload sensor circuit is open or shorted.
(
orA/C LEDis indicated on auto amp. as a result of
conducting Self-diagnosis STEP 2.)
CHECK SUNLOAD SENSOR CIRCUIT
BETWEEN SUNLOAD SENSOR AND
AUTO AMP.
Disconnect sunload sensor harness con-
nector.
Do approx. 5 volts exist between sunload
sensor harness terminal No.
V1and body
ground?
Yes
cNo
Disconnect auto amp. har-
ness connector.
Note
Check circuit continuity
between sunload sensor
harness terminal No.
V1
and auto amp. harness
terminal No.
V10.
OK
Disconnect auto amp. harness connector.
Replace auto amp.
Note
Check circuit continuity between sunload
sensor harness terminal No.
V2and auto
amp. harness terminal No.
V24.
OK
CHECK SUNLOAD SENSOR.
(Refer to HA-2086.)
OK
cNG
Replace sunload sensor.
Replace auto amp.
Note:
If the result is NG or No after checking circuit continuity, repair harness
or connector.
RHA061GC
RHA507H
RHA508H
RHA509H
.
..
.
.
.
TROUBLE DIAGNOSESAUTO
Sunload Sensor (Cont'd)
HA-2085

COMPONENT INSPECTION
Sunload sensor
Measure voltage between auto amp. terminalV10and body
ground.
lWhen checking sunload sensor, select a place where
sun shines directly on it.
RHA510H
TROUBLE DIAGNOSESAUTO
Sunload Sensor (Cont'd)
HA-2086

Intake Sensor
COMPONENT DESCRIPTION
The intake sensor is located on the cooling unit. It converts tem-
perature of air after it passes through the evaporator into a resis-
tance value. The value is then input to the auto amplifier.
DIAGNOSTIC PROCEDURE
SYMPTOM: Intake sensor circuit is open or shorted.
CHECK INTAKE SENSOR CIRCUIT
BETWEEN INTAKE SENSOR AND AUTO
AMP.
Disconnect intake sensor harness connec-
tor.
Do approx. 5 volts exist between intake
sensor harness terminal No.
V2and body
ground?
Yes
cNo
Disconnect auto amp. har-
ness connector.
Note
Check circuit continuity
between intake sensor har-
ness terminal No.
V2and
auto amp. harness terminal
No.
V25.
Continuity should exist.
If OK, check harness for
short.
OK
Disconnect auto amp. harness connector.
Replace auto amp.
Note
Check circuit continuity between intake
sensor harness terminal No.
V1and auto
amp. harness terminal No.
V24.
Continuity should exist.
If OK, check harness for short.
OK
CHECK INTAKE SENSOR.
(Refer to HA-2088.)
OK
cNG
Replace intake sensor.
Replace auto amp.
Note:
If the result is NG or No after checking circuit continuity, repair harness
or connector.
RHA511H
RHA957FA
RHA512H
RHA513H
RHA514H
.
..
.
.
.
TROUBLE DIAGNOSESAUTO
HA-2087

COMPONENT INSPECTION
Intake sensor
After disconnecting intake sensor harness connector, measure
resistance between terminals
V25andV24at sensor harness side,
using the table below.
Temperature ÉC (ÉF) Resistance kW
þ20 (þ4) 16.2
þ10 (14) 9.8
0 (32) 6.0
10 (50) 3.94
20 (68) 2.64
25 (77) 2.12
30 (86) 1.82
40 (104) 1.27
RHA515H
TROUBLE DIAGNOSESAUTO
Intake Sensor (Cont'd)
HA-2088

ALPHABETICAL INDEX
SECTION
IDX
IDX

A
A/C harness layout (auto A/C)..................HA-2026
A/C operational check...............................HA-2041
A/C relay .........................................HA-2021, 2073
A/C self-diagnoses (auto A/C) ..................HA-2034
A/C switch .................................................HA-2021
A/C system description (auto A/C) ...........HA-2023
A/C trouble diagnoses (manual A/C) ........HA-2003
A/C, A - Wiring diagram............................HA-2028
A/C, M - Wiring diagram ...........................HA-2005
AAC/V - Wiring diagram ...........................EC-2011
Air bag.......................................................RS-2004
Air bag disposal ........................................RS-2012
Air flow meter - See Mass air flow
sensor....................................................EC-2008
Air mix door control linkage
adjustment .............................................HA-2057
Air mix door motor ....................................HA-2057
Alternator ...................................................EL-2016
Ambient sensor .........................................HA-2080
Antenna .....................................................EL-2103
Anti-lock brake system - Wiring
diagram .......................................BR-2004, 2007
Aspirator motor .........................................HA-2084
Audio and A/C control removal and
installation - See Instrument panel........BT-2004
Automatic amplifier .........................HA-2032, 2045
Auxiliary air control (AAC) valve ...............EC-2011
B
Back-up lamp.............................................EL-2035
Back-up lamp switch (M/T) .......................MT-2002
Baulk ring (M/T) ........................................MT-2003
C
Camshaft position sensor (CMPS) ...........EC-2007
Center bearing assembly (propeller
shaft) .....................................................PD-2006
CHARGE - Wiring diagram .......................EL-2013
Charging system........................................EL-2013
CIGAR - Wiring diagram ...........................EL-2094
Cigarette lighter .........................................EL-2094
Clock ..........................................................EL-2095
CLOCK - Wiring diagram ..........................EL-2095
CMPS - Wiring diagram ............................EC-2007
Collision diagnosis ....................................RS-2039
Combination meter ....................................EL-2049
Combination meter removal and instal-
lation - See Instrument panel ................BT-2004
Combination switch ...................................EL-2017
Control units (terminal arrangement) ........EL-2176
Cooling fan control system........................LC-2002
Counter gear (M/T) ...................................MT-2003
Coupling sleeve (M/T) ..............................MT-2003Crank angle sensor built into distribu-
tor - See Camshaft position sensor ......EC-2007
Crankshaft position sensor (POS) ............EC-2007
Crankshaft position sensor (REF) ............EC-2007
Cylinder head ...........................................EM-2003
D
Daytime light system .................................EL-2022
DEF - Wiring diagram................................EL-2096
Diagnosis sensor unit ...............................RS-2007
Differential carrier assembly .....................PD-2008
Dim-dip lamp system .................................EL-2025
Dimensions.................................................GI-2007
Door, front .................................................BT-2003
E
ECCS relay ...............................................EC-2005
EGR - Wiring diagram ..............................EC-2027
EGRC/V - Wiring diagram ........................EC-2013
Engine control circuit diagram ..................EC-2004
Engine outer component parts .................EM-2002
EVAP canister purge control solenoid
valve ......................................................EC-2013
F
F/HEAT - Wiring diagram .........................EC-2033
F/PUMP - Wiring diagram.........................EC-2015
Fan control amp. .......................................HA-2064
Fan switch .................................................HA-2021
FICD - Wiring diagram....................EC-2018, 2034
Fog lamp, rear ...........................................EL-2036
Fork rod (M/T)...........................................MT-2006
Front door ..................................................BT-2003
Front passenger air bag ...........................RS-2004
Front suspension .......................................FA-2002
Front wiper.................................................EL-2086
Fuel pump .................................................EC-2015
Fuel pump relay ........................................EC-2015
Fuse block .................................................EL-2175
G
Gauges ......................................................EL-2049
Gear components (M/T) ...........................MT-2003
Ground clearance.......................................GI-2007
H
H/AIM - Wiring diagram .............................EL-2028
H/LAMP - Wiring diagram .........................EL-2018
H02S - Wiring diagram .............................EC-2010
ALPHABETICAL INDEX
IDX-2002

Harness layout...........................................EL-2146
Hazard warning lamp ................................EL-2038
Headlamp ..................................................EL-2018
Headlamp washer......................................EL-2092
Headlining - See Roof trim........................BT-2010
Heated oxygen sensor (HO2S) ................EC-2010
Heated seat ...............................................EL-2106
HEATER - Wiring diagram........................HA-2003
Height (Dimensions)...................................GI-2007
HLC - Wiring diagram................................EL-2092
Horn ...........................................................EL-2093
HORN - Wiring diagram ............................EL-2093
HSEAT - Wiring diagram ...........................EL-2106
I
IACV-AAC valve........................................EC-2011
ILL - Wiring diagram ..................................EL-2043
Illumination.................................................EL-2043
In vehicle sensor .......................................HA-2082
Instrument panel........................................BT-2004
INT/L - Wiring diagram ..............................EL-2048
Intake door control linkage
adjustment .............................................HA-2061
Intake sensor ............................................HA-2088
Interior .......................................................BT-2007
Interior lamp...............................................EL-2047
J
Jump seat ..................................................BT-2012
K
Keyless entry system - See
Multi-remote control system ..................EL-2129
L
Length (Dimensions) ..................................GI-2007
License lamp .............................................EL-2030
Location of electrical units .........................EL-2143
Lubricants .................................................MA-2003
M
MAFS - Wiring diagram ............................EC-2008
MAIN - Wiring diagram .............................EC-2005
Main drive gear (M/T) ...............................MT-2003
Mainshaft (M/T).........................................MT-2003
Mass air flow sensor (MAFS) ...................EC-2008
Meter..........................................................EL-2049
METER - Wiring diagram ..........................EL-2052
MIL & Data link connectors circuit ............EC-2019Mode door control linkage adjustment .....HA-2051
Mode door motor ......................................HA-2051
MULTI - Wiring diagram ............................EL-2131
Multi-remote control system ......................EL-2129
N
NATS - Wiring diagram .............................EL-2140
Neutral position switch ..............................EC-2012
O
Oil change (capacity)................................MA-2003
P
P/ANT - Wiring diagram ............................EL-2103
Park/neutral position switch (M/T) ............MT-2002
Parking lamp..............................................EL-2030
PGC/V - Wiring diagram ...........................EC-2013
PNP/SW - Wiring diagram ........................EC-2012
POWER - Wiring diagram .........................EL-2005
Power door mirror......................................EL-2104
Power supply routing .................................EL-2004
Power window ...........................................EL-2108
Propeller shaft ...........................................PD-2004
PST/SW - Wiring diagram ........................EC-2016
R
R/FOG - Wiring diagram ...........................EL-2036
Rear fog lamp ............................................EL-2036
Rear window defogger ..............................EL-2096
Reverse idler shaft (M/T) ..........................MT-2003
Reverse lamp switch (M/T) - See
Back-up lamp switch (M/T) ...................MT-2002
Reverse main gear (M/T) .........................MT-2003
Road wheel size.........................................GI-2007
Roof trim ....................................................BT-2010
Room lamp ................................................EL-2047
ROOM/L - Wiring diagram.........................EL-2047
S
S/SIG - Wiring diagram.............................EC-2014
Seat belt pre-tensioner .............................RS-2004
Seat belt pre-tensioner disposal ...............RS-2012
Shift control components (M/T) ................MT-2006
Shift fork (M/T) ..........................................MT-2006
Shift lever ..................................................MT-2006
Side trim ....................................................BT-2007
SMJ (super multiple junction) ....................EL-2173
Spiral cable ...............................................RS-2008
Spot lamp ..................................................EL-2048
ALPHABETICAL INDEX
IDX-2003

SRS - See Supplemental Restraint
System ..................................................RS-2004
Start signal ................................................EC-2014
START - Wiring diagram ...........................EL-2012
Starting system ..........................................EL-2012
Steering wheel and column.......................ST-2002
Stop lamp ..................................................EL-2034
STOP/L - Wiring diagram ..........................EL-2034
Striking rod (M/T) ......................................MT-2006
Sub-gear (M/T) .........................................MT-2003
Sunload sensor .........................................HA-2084
Supplemental Restraint System ...............RS-2004
Supplemental restraint system - Wiring
diagram .................................................RS-2020
Swirl control valve control solenoid
valve ......................................................EC-2017
SWL/V - Wiring diagram ...........................EC-2017
Synchronizer (M/T) ...................................MT-2003
T
Tail lamp ....................................................EL-2030
TAIL/L - Wiring diagram ............................EL-2030
Thermal protector......................................HA-2021
Thermo control amp .......................HA-2022, 2073
Thermo switch ................................HA-2022, 2074Tire size......................................................GI-2007
Transmission case (M/T) ................MT-2002, 2005
Tread-FR&RR (Dimensions) ......................GI-2007
Trim ...........................................................BT-2007
Triple pressure switch.....................HA-2022, 2073
Turn signal lamp ........................................EL-2038
V
Vehicle identification number .....................GI-2006
Vehicle speed sensor (VSS).....................EC-2009
VSS - Wiring diagram ...............................EC-2009
W
Warning lamps...........................................EL-2072
Washer, front .............................................EL-2086
Wheel size..................................................GI-2007
Wheelbase (Dimensions) ...........................GI-2007
Width (Dimensions) ....................................GI-2007
WINDOW - Wiring diagram .......................EL-2109
WIPER - Wiring diagram ...........................EL-2086
Wiring diagram (cell code) list ...................EL-2171
ALPHABETICAL INDEX
IDX-2004