Nissan Frontier D40. Manual - part 697

GI-12

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HOW TO USE THIS MANUAL

The Reference Area of the wiring diagram contains references to additional electrical reference pages at the
end of the manual. If connector numbers and titles are shown in the Reference Area of the wiring diagram,
these connector symbols are not shown in the Connector Area.

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HOW TO FOLLOW TROUBLE DIAGNOSES

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HOW TO FOLLOW TROUBLE DIAGNOSES

Description

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NOTICE:
Trouble diagnoses indicate work procedures required to diagnose problems effectively. Observe the following
instructions before diagnosing.
• Before performing trouble diagnoses, read the “Work Flow” in each section.
• After repairs, re-check that the problem has been completely eliminated.
• Refer to Component Parts and Harness Connector Location for the Systems described in each section for

identification/location of components and harness connectors.

• When checking circuit continuity, ignition switch should be OFF.
• Refer to the Circuit Diagram for quick pinpoint check.

If you need to check circuit continuity between harness connectors in more detail, such as when a sub-har-
ness is used, refer to Wiring Diagram in each individual section and Harness Layout in PG section for identi-
fication of harness connectors.

• Before checking voltage at connectors, check battery voltage.
• After accomplishing the Diagnosis Procedures and Electrical Components Inspection, make sure that all

harness connectors are reconnected as they were.

How to Follow Test Groups in Trouble Diagnosis

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1.

Test group number and test group title
• Test group number and test group title are shown in the upper portion of each test group.

2.

Work and diagnosis procedure
• Start to diagnose a problem using procedures indicated in enclosed test groups.

3.

Questions and results
• Questions and required results are indicated in test group.

4.

Action
• Next action for each test group is indicated based on result of each question.

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GI-14

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HOW TO FOLLOW TROUBLE DIAGNOSES

Key to Symbols Signifying Measurements or Procedures

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HOW TO FOLLOW TROUBLE DIAGNOSES

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