Infiniti M35/M45 Y50. Manual — part 790

HOW TO USE THIS MANUAL

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3.

Symbol used in illustration
Symbols included in illustrations refer to measurements or procedures. Before diagnosing a problem,
familiarize yourself with each symbol. Refer to "Connector Symbols" in GI Section and "KEY TO SYM-
BOLS SIGNIFYING MEASUREMENTS OR PROCEDURES" below.

4.

Action items
Next action for each test group is indicated based on result of each question. Test group number is shown
in the left upper portion of each test group.

HARNESS WIRE COLOR AND CONNECTOR NUMBER INDICATION

There are two types of harness wire color and connector number indication.

TYPE 1: Harness Wire Color and Connector Number are Shown in Illustration

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Letter designations next to test meter probe indicate harness
wire color.

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Connector numbers in a single circle (e.g. M33) indicate har-
ness connectors.

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Connector numbers in a double circle (e.g. F211) indicate com-
ponent connectors.

a. Battery voltage

→

11 - 14V or approximately 12V

b. Voltage

: Approximately 0V

→

Less than 1V

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TYPE 2: Harness Wire Color and Connector Number are Shown in Text

KEY TO SYMBOLS SIGNIFYING MEASUREMENTS OR PROCEDURES

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How to Read Wiring Diagrams

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CONNECTOR SYMBOLS

Most of connector symbols in wiring diagrams are shown from the terminal side.

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Connector symbols shown from the terminal side are enclosed
by a single line and followed by the direction mark.

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Connector symbols shown from the harness side are enclosed
by a double line and followed by the direction mark.

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Certain systems and components, especially those related to
OBD, may use a new style slide-locking type harness connector.
For description and how to disconnect, refer to PG section,
“Description”, “HARNESS CONNECTOR”.

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Male and female terminals
Connector guides for male terminals are shown in black and
female terminals in white in wiring diagrams.

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