Ignition System: Testing and Inspection

2005 Chevrolet Monte Carlo V6-3.8L VIN KSECTION Testing and Inspection


ELECTRONIC IGNITION (EI) SYSTEM DIAGNOSIS

CIRCUIT DESCRIPTION
The ignition control module (ICM) has independent power and ground circuits. The circuits between the ICM and the powertrain control module (PCM) consists of the following circuits:
- The ignition control (IC) timing signal
- The IC timing control
- The low resolution engine speed signal
- The medium resolution engine signal
- The camshaft position signal
- The low reference

For a complete system description, refer to Electronic Ignition (EI) System Description.

TEST

Steps 1 - 10:




Steps 11 - 19:




Step 19:




RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.