Hyundai Sonata: Description and Operation
Description
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).
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See also:
Engine Control Module (ECM). Repair procedures
Removal
When replacing the ECM, the vehicle equipped with the immobilizer
must be performed procedure as below.
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Antenna. Repair procedures
Inspection
Glass Antenna Test
1.
Wrap aluminum foil (A) around the tip of the tester probe (B)
as shown.
2.
Touch one tester p ...
