Equus 3173 - Import Code Reader - Manual (Page 27)

Nissan/Infiniti
CODE RETRIEVAL PROCEDURE
Chapter 4 24
CODE RETRIEVAL PROCEDURE
• Always observe safety precautions whenever working on a
vehicle.
• Fix any known mechanical problems before this test.
• Warm up engine before this test.
• Have a pencil and paper handy.
1. Locate your vehicle in the appropriate table (see below for
“Nissan Code Retrieval Procedures”; see page 29 for
“Infiniti Code Retrieval Procedures”).
2. Follow the procedures applicable to your vehicle.
■ Refer to page 30 for “ECU Locations”, (Figures N3
through N7).
■ Refer to page 31 for “Code Examples” (Figures N8
through N11).
3. Refer to pages 34-36 for “Nissan/Infiniti Fault Code
Definitions”. Match the retrieved Diagnostic Trouble Codes
with those listed, read the associated definition(s), and
consult the vehicle’s service manual for further evaluation.
4. Refer to page 32 for the “Erasing Codes” procedure.
Consult the appropriate table for your vehicle (“Nissan
Erasing Procedure” or “Infiniti Erasing Procedure”) and
follow the procedure listed.
Nissan Code Retrieval Procedures
Tool
Model Years Eng. Req? Perform the following:
Altima 93-95 2.4 Y Procedure: Access ECU (located be-
Maxima 92-94 3.0 (DOHC) hind center console) (N3). Turn ignition
Sentra 91-95 2.0 on. Using Nissan tool, turn diagnostic
Stanza 90-92 2.4 mode selector fully clockwise; wait two
200SX 95 1.6, 2.0 seconds, then turn selector fully coun-
terclockwise. Observe red LED on
ECU for codes.
Codes: Codes are displayed using a
combination of long and short blinks.
Codes are determined by the number
and duration of blinks. A long blink in-
dicates the first digit (ten); a short
blink indicates the second digit (ones)
(N8). Example: long blink-pause short
blink short blink = code 12 (N9). If