Ignition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are preprogrammed in the memory of the ECM (Engine Control Module).

The engine operating conditions (speed, load, warm-up condition, etc.) are detected by the various sensors. Based on these sensor signals and the ignition timing data, signals to interrupt the primary current are sent to the ECM. The ignition coil is activated, and timing is controlled.

Ignition System

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Repair procedures

On-vehicle Inspection Spark Test 1. Disconnect the ignition coil connectors (A). 2. Remove the ignition coils (A). ...

See also:

Alignment. Repair procedures
Front Wheel Alignment When using a commercially available computerized wheel alignment equipment to inspect the front wheel al ...

Output Speed Sensor. Specifications
Specification Item Specification Type Hall Effect Sensor,  2pins (Power: 9V, Signal) Operation condition -40 ...

Closing the hood
1. Before closing the hood, check the following: All filler caps in engine compartment must be correctly installed. Gloves, rags or any other combustible material must be removed from the eng ...