1998 NISSAN PATROL roof

GENERAL INFORMATION
SECTION
GI
CONTENTS
PRECAUTIONS...............................................................1
Precaution for Supplemental Restraint System
(SRS) ``AIR BAG'' and ``SEAT BELT
PRE-TENSIONER'' ......................................................1
General Precautions ....................................................2
Precautions for Multiport Fuel Injection System
or ECCS Engine ..........................................................3
Precautions for Three Way Catalyst
(If so equipped)............................................................4
Precautions for Engine Oils .........................................4
Precautions for Fuel ....................................................5
Precautions for Air Conditioning ..................................5
HOW TO USE THIS MANUAL........................................6
HOW TO READ WIRING DIAGRAMS............................8
Sample/Wiring Diagram Ð EXAMPL Ð......................8
Description .................................................................10
HOW TO CHECK TERMINAL.......................................17
How to Probe Connectors .........................................17
How to Check Enlarged Contact Spring of
Terminal .....................................................................18
Waterproof Connector Inspection ..............................19
Terminal Lock Inspection ...........................................19
HOW TO PERFORM EFFICIENT DIAGNOSIS FOR
AN ELECTRICAL INCIDENT........................................20Work Flow ..................................................................20
Incident Simulation Tests ...........................................21
Circuit Inspection .......................................................24
HOW TO FOLLOW FLOW CHART IN TROUBLE
DIAGNOSES..................................................................30
How to Follow This Flow Chart .................................31
CONSULT CHECKING SYSTEM..................................33
Function and System Application ..............................33
Lithium Battery Replacement ....................................33
Checking Equipment..................................................33
Loading Procedure ....................................................34
CONSULT Data Link Connector (DLC) Circuit..........34
IDENTIFICATION INFORMATION.................................35
Model Variation ..........................................................35
Identi®cation Number .................................................36
Dimensions ................................................................38
Wheels & Tires ..........................................................38
LIFTING POINTS AND TOW TRUCK TOWING...........39
Screw Jack ................................................................39
Garage Jack and Safety Stand .................................39
2-pole Lift ...................................................................40
Tow Truck Towing ......................................................41
SAE J1930 TERMINOLOGY LIST................................43
SAE J1930 Terminology List .....................................43
GI

How to Probe Connectors
Connector damage and an intermittent connection can result from
improperly probing of the connector during circuit checks.
The probe of a digital multimeter (DMM) may not correctly ®t the
connector cavity. To correctly probe the connector, follow the pro-
cedures below using a ``T'' pin. For the best contact grasp the ``T''
pin using an alligator clip.
PROBING FROM HARNESS SIDE
Standard type (not waterproof type) connector should be probed
from harness side with ``T'' pin.
+If the connector has a rear cover such as a ECM connector,
remove the rear cover before probing the terminal.
+Do not probe waterproof connector from harness side.
Damage to the seal between wire and connector may
result.
PROBING FROM TERMINAL SIDE
Female terminal
+There is a small notch above each female terminal. Probe each
terminal with the ``T'' pin through the notch.
Do not insert any object other than the same type male termi-
nal into female terminal.
+Some connectors do not have a notch above each terminal. To
probe each terminal, remove the connector retainer to make
contact space for probing.
Male terminal
Carefully probe the contact surface of each terminal using a ``T''
pin.
Do not bend terminal.
SGI841
SEL265V
SEL266V
SEL267V
HOW TO CHECK TERMINAL
GI-17

Waterproof Connector Inspection
If water enters the connector, it can short interior circuits. This may
lead to intermittent problems.
Check the following items to maintain the original waterproof char-
acteristics.
RUBBER SEAL INSPECTION
+Most waterproof connectors are provided with a rubber seal
between the male and female connectors. If the seal is missing,
the waterproof performance may not meet speci®cations.
+The rubber seal may come off when connectors are discon-
nected. Whenever connectors are reconnected, make sure the
rubber seal is properly installed on either side of male or female
connector.
WIRE SEAL INSPECTION
The wire seal must be installed on the wire insertion area of a
waterproof connector. Be sure that the seal is installed properly.
Terminal Lock Inspection
Check for unlocked terminals by pulling wire at the end of connec-
tor. An unlocked terminal may create intermittent signals in the cir-
cuit.
SEL275V
SEL330V
HOW TO CHECK TERMINAL
GI-19