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Ignition Systems

CAUTION: To prevent damage caused by the improper probing of connector terminals, use the Connector Test Adapter Kit (J 35616-A), or equivalent, for any test that requires probing the following items:
  • The PCM harness connectors.
  • The electrical center fuse/relay cavities.
  • The component terminals.
  • The component harness connector.

Manufacturer does not provide testing procedures for many individual systems and components. For information on testing the ignition system, see IGNITION SYSTEMS in SYSTEM & COMPONENT TESTING - 3.4L ALERO, GRAND AM, IMPALA & MONTE CARLO article. For ignition system testing not listed, perform related DTC testing procedure. See SELF-DIAGNOSTICS - 3.4L ALERO, GRAND AM, IMPALA & MONTE CARLO article.

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