FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Checking the Ignition Discharge Module




Checking the Ignition Discharge Module







^ Check visually that:
^ the four rubber seals are intact
^ the four contact springs are OK
^ the connector is free from corrosion and moisture

Is the function correct?

NO ^ Diagnostic Procedure - I

YES ^ Continue with Checking the Ignition Discharge Module







^ Fit the test spark plug in the ignition discharge module.
^ Ground the spark plugs.
^ Position the ignition discharge module so that the spark plugs are inclined downwards and the oil in the ignition coils covers the HT outputs.
^ Activate the ignition trigger by selecting automatic activation of the ignition coil for the misfiring cylinder. Choose from the following activation commands on the diagnostic tool:

Ignition Coil Cyl 1
Ignition Coil Cyl 2
Ignition Coil Cyl 3
Ignition Coil Cyl 4

^ Select automatic activation.
^ Check whether the relevant test spark plug produces a spark. If necessary, compare it by activating another ignition coil .

Is the function correct?

NO ^ Changing Components - IV

YES ^ Checking the Manifold Absolute Pressure Sensor