Warning Indicators

The warning indicators are located in various positions in the IC. The warning indicators can be split into two groups; self-controlled and externally controlled.

Self-controlled warning indicators are dependent on software logic within the instrument pack for activation. The pack software controls the indicator check illumination at ignition on and all indicators whose operation is controlled by the IC, the low fuel level warning indicator for example.

Externally controlled indicators are supplied with current from another system controlling module or illuminated by the IC on receipt of a bus message from another subsystem module.

Some indicators are activated by an external subsystem module but the IC contains the control logic.