Titan 2WD V8-5.6L (VK56) (2004)
3. BCM - Operation table of combination switch
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BCM reads operation status of combination switch by the combination shown in the table.
NOTE: Headlamp has a dual system switch.
4. Example operation: (When lighting switch 1st position turned ON)
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When lighting switch 1st position is turned ON, contact in combination switch turns ON. At this time if OUTPUT 4 transistor is activated,
BCM detects that voltage changes in INPUT 5.
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When OUTPUT 4 transistor is ON, BCM detects that voltage changes in INPUT 5, and judges lighting switch 1st position is ON. Then BCM
sends tail lamp ON signal to IPDM E/R using CAN communication.
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When OUTPUT 4 transistor is activated again, BCM detects that voltage changes in INPUT 5 and recognizes that lighting switch 1st position
is continuously ON.
NOTE: Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore, after a switch is turned ON, electrical loads are activated
with a time delay. But this time delay is so short that it cannot be noticed.
5. Operation mode
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Combination switch reading function has operation modes as follows:
Normal status