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Home >> Chevrolet >> 1996 >> G 20 Van V6-4.3L VIN W >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> - Important Preliminary Checks
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- Important Preliminary Checks



Before Using This Section

Before using this section, you should have performed the Powertrain On-Board Diagnostic System Check and determined that:

1. The Control Module and Malfunction Indicator Lamp (MIL) are operating correctly.

2. There are no Diagnostic Trouble Codes (DTCs) stored, or a DTC exists but without a MIL.

Several of the following symptom procedures call for a careful visual and physical check. The visual and physical checks are very important. The checks can lead to correcting a problem without further checks which may save valuable time.


Symptom

Verify the customer complaint.

Locate the correct symptom table.

Check the items indicated under that symptom.
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