Equus 3173 - Import Code Reader - Manual (Page 26)

Nissan/Infiniti
OVERVIEW OF NISSAN/INFINITI DIAGNOSTIC SYSTEMS
23 Chapter 4
OVERVIEW OF NISSAN/INFINITI DIAGNOSTIC SYSTEMS
• Retrieving codes from
Nissan/Infiniti vehicles
requires the use of the flat
end of the code retrieval
tool shown in Figure N1.
• Nissan/Infiniti vehicles use a variety of computer systems
which are equipped with either a single-LED (Light
Emitting Diode) or a dual-LED display.
• To retrieve codes, you need to first locate the LED display on
the vehicle’s computer. The LED(s) are mounted inside the
computer, but may be seen by looking through an opening in
the top of or on the side of the computer housing. In some
cases you may have to remove the computer from its mount.
NOTE: Refer to the vehicle’s service manual when removing the
computer from it’s mount, as it is easily damaged.
All Nissan/Infiniti vehicles
covered in this manual are
equipped with a screw-type
diagnostic mode selector on
the vehicle’s computer. The
diagnostic mode selector is
accessed through a cutout in
the computer housing. Two
marks show the operating
limits of the diagnostic mode
selector. The Code Reader is
used to adjust the position of
the diagnostic mode selector
(N2).
NOTE: Some Nissan/Infiniti models do not require a tool to
retrieve codes. The “Tool Req?” column in the “Code Retrieval
Procedures Tables” on pages 24 through 29 will let you know if
a tool is required. If no tool is required, just follow the
procedures as indicated to retrieve codes.
NISSAN
TOOL
N1
N2