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:
Reset items
Items should be reset after the battery has been discharged or the battery has
been disconnected.
Auto up/down window (See section 4)
Sunroof (See section 4)
Trip computer (See section 4)
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Fuel Tank Air Filter. Repair procedures
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative
(-) cable.
2.
Disconnect the canister close valve connector (A ...
High Mounted stop lamp. Repair procedures
Removal
1.
Disconnect the negative(-) battery terminal.
2.
Remove the rear seat.
(Refer to the BD group - "Rear seat")
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