Central warning lamp: Notes
The central warning lamp lights up when a fault occurs in a system having to do with the car's safety.
The lamp is supplied with current (+15 circuit) from the main instrument unit and grounded by the MIU's control module when one of the following warning or indicator lamps lights up:
- Warning lamp, AIRBAG
- Engine oil pressure warning lamp
- Warning lamp, charging
- Warning lamp, brake fluid level
- Warning lamp, handbrake
- ABS warning lamp
The handbrake lamp lights the central warning lamp if the speed passes 5 km/h from a speed below 5 km/h.
Common to the above lamps is that they are supplied with current (+15 circuit) in the main instrument unit and grounded through the relevant component/system.
The central warning lamp also lights up when:
- Coolant temperature exceeds 129 °C
At the same time as the central warning lamp lights up, the main instrument unit sends bus information to the SID unit requesting it to activate an acoustic signal. This does not occur when the ignition is switched on as the lamps are then only tested. An engine speed of above 310 rpm is required for this request.