Frontier SC Crew Cab 4WD V6-3.3L SC (VG33ER) (2001)
Description (Steps 1 - 6)
DESCRIPTION
Incident Simulation Tests
INTRODUCTION
Sometimes the symptom is not present when the vehicle is brought in for service. If possible, re-create the conditions present at the time of the incident.
Doing so may help avoid a No Trouble Found Diagnosis. The following section illustrates ways to simulate the conditions/environment under which the
owner experiences an electrical incident.
The section is broken into the six following topics:
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Vehicle vibration
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Heat sensitive
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Freezing
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Water intrusion
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Electrical load
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Cold or hot start up
Get a thorough description of the incident from the customer. It is important for simulating the conditions of the problem.
VEHICLE VIBRATION
The problem may occur or become worse while driving on a rough road or when engine is vibrating (idle with A/C on). In such a case, you will want to
check for a vibration related condition. Refer to the illustration below.
Connectors and Harness
Determine which connectors and wiring harness would affect the electrical system you are inspecting. Gently shake each connector and harness while
monitoring the system for the incident you are trying to duplicate. This test may indicate a loose or poor electrical connection.
Hint: Connectors can be exposed to moisture. It is possible to get a thin film of corrosion on the connector terminals. A visual inspection may not reveal
this without disconnecting the connector. If the problem occurs intermittently, perhaps the problem is caused by corrosion. It is a good idea to
disconnect, inspect and clean the terminals on related connectors in the system.