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:

Power Window Switch. Schematic Diagrams
Circuit Diagram Driver Power Window Switch Passenger Power Window Switch Rear Power Window Switch ...

Engine Coolant Temperature Sensor (ECTS). Repair procedures
Inspection 1. Turn the ignition switch OFF. 2. Remove the ECTS (Refer to "Removal"). 3. After immers ...

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