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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 141 (Engine Controls - Basic Diagnostic Procedures) >> Ignition Systems >> Electronic Ignition System Diagnosis >> Test Description
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Test Description

WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the numbers in the diagnostic procedure.

  1. 3

    This step tests for a short to battery positive voltage on the ignition 1 voltage circuit. When the ignition is turned OFF, the test light should not illuminate at the COIL/MDL fuse.

  2. 18

    The Spark Tester places a higher load, up to 25,000 volts, on the secondary ignition than a normal spark plug.
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