AUX NISSAN PATROL 2004 Electronic Repair Manual

Removal
1. Remove the following parts.
+Undercover
+Engine oil (Drain)
+Engine coolant (Drain)
+Engine cover
+Intercooler
+Air inlet pipe
+Air cleaner case
+Throttle body
+Swirl and intake air control valve control solenoid valve and
bracket
+Vacuum tank
+Glow plate
+Rocker cover
+Spill tube
+Radiator shrouds (Rear and Lower)
+Cooling fan
+Radiator hose (Upper and Lower)
+Auxiliary belt and auto tensioner.
2. Remove the alternator.
3. Remove the A/C compressor and bracket with piping con-
nected. Move and support it at the LH side of engine bay with
a rope to avoid putting load on piping.
Refer to HA section in NISSAN Service Manual (Publication No.
SM9E-Y61CG2 or SM9E-Y61CG3).
4. Remove the chain cover, timing chain and other parts in con-
nection.
Before removing timing chain, remove injection pump sprocket
with No. 1 cylinder being positioned at TDC. Refer to the ®g-
ure. Refer to ªTIMING CHAINº, EM-37 in NISSAN Service
Manual (Publication No. SM9E-Y61CG2 or SM9E-Y61CG3).
CAUTION:
After removing timing chain, never rotate crankshaft, or the
piston will push the valve up and damage the valve.
+Do not paint the match mark on the timing chain beforehand as
the No. 1 cylinder is set at the TDC during assembly.
5. Remove the TDC sensor.
CAUTION:
+Do not drop or hit the sensor.
+Store in a clean place free of iron ®lings, etc.
+Do not place near any magnetic equipment.
6. Remove the water pump and its stud bolts.
Refer to ªWATER PUMPº in LC section in NISSAN Service
Manual (Publication No. SM9E-Y61CG2 or SM9E-Y61CG3).
7. Remove the water inlet.
SEM376G
TIMING GEARZD
EM-4009

Self-diagnosis
INTRODUCTION AND GENERAL DESCRIPTION
The self-diagnostic system diagnoses sensors, door motors, blower motor, etc. by system line.
Self-diagnosis is step-1 to 7. There are two ways of changing method during self-diagnosis.
+Switching to self-diagnosis step-1 to 4.
Shifting from usual control to the self-diagnostic system is accomplished by starting the engine (turning
the ignition switch from OFF to ON) and pressing A/C switch for at least 5 seconds. The A/C switch must
be pressed within 10 seconds after starting the engine (ignition switch is turned ON). This system will be
canceled by either pressing intake switch or turning the ignition switch OFF. Shifting from one step to
another is accomplished be means of turning fan control dial, as required.
+Switching to self-diagnosis step-5 to 7 (Auxiliary mechanism).
Shifting from usual control to the self-diagnostic system is accomplished by starting the engine (turning
the ignition switch from OFF to ON) and pressing intake switch for at least 5 seconds. The intake switch
must be pressed within 10 seconds after starting the engine (ignition switch is turned ON). This system
will be canceled by either pressing A/C switch or turning the ignition switch OFF. Shifting from one step
to another is accomplished by means of turning fan control dial, as required.
TROUBLE DIAGNOSESAUTO
HA-4025

AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER
The trimmer compensates for differences in range of  3ÉC between temperature setting (Temperature control
dial position) and temperature felt by driver.
Operating procedures for this trimmer are as follows:
1. Set temperature at 25ÉC.
2. Set fan control dial to OFF.
3. Turn ignition switch ON.
4. Set in self-diagnostic mode as follows. Within 10 seconds after starting engine (ignition switch is turned
ON.), press intake switch for at least 5 seconds.
5. Turn temperature control dial as desired. Temperature will change at a rate of 1ÉC each time a dial is
turned.
Setting temperatureLED status of each switch
FRE REC A/C
þ3ÉC ON ON ON
þ2ÉC ON ON OFF
þ1ÉC ON OFF ON
0ÉC (Initial setting) OFF OFF OFF
1ÉC OFF OFF ON
2ÉC OFF ON OFF
3ÉC OFF ON ON
When battery cable is disconnected, trimmer operation is canceled. Temperature set becomes that of initial
condition, i.e. 0ÉC.
AUXILIARY MECHANISM: FOOT POSITION SETTING TRIMMER
CAUTION:
This A/C system cannot perform the setup of the FOOT position.
LED of A/C switch illuminates. It means that it is ®xed to the initial setting.
AUXILIARY MECHANISM: INLET PORT MEMORY FUNCTION
When ignition switch is turned from OFF to ON, inlet port can be set to AUTO or manual.
Operating procedures for this trimmer are as follows:
1. Set fan control dial to 1st - 25th step.
2. Turn ignition switch ON.
3. Set in self-diagnostic mode as follows. Within 10 seconds after starting engine (ignition switch is turned
ON.), press intake switch for at least 5 seconds.
4. Press intake switch as desired.
LED status of intake switch Setting status
Setting changeover
method
FRE REC FRE REC
OFF ONAUTO control (Initial set-
ting)Manual REC status is
memorized.
(Initial setting)
Intake switch: ON ON OFFManual FRE status is
memorized.AUTO control
ON ONManual FRE status is
memorized.Manual REC status is
memorized.
OFF OFF AUTO control AUTO control
TROUBLE DIAGNOSESAUTO
Self-diagnosis (Cont'd)
HA-4031