Ignition/no charge warning lamp

Ignition/no charge warning lamp

The ignition/no charge warning lamp receives an ignition supply from fuse A4 on a W wire and is connected to the alternator on an NY wire. The lamp will illuminate if the voltage it receives on an NY wire is less than battery voltage i.e. the alternator is not supplying sufficient voltage to charge the battery.

Oil pressure warning lamp

Battery voltage is supplied from fuse A4 to the oil pressure warning lamp on a W wire. When oil pressure drops below a set level, the contacts in the oil pressure switch are closed. This provides a path to earth for the warning lamp on a WN wire causing it to illuminate.

Indicator warning lamps

These warning lamps give a visual indication when the direction indicators or hazards lamps are operated. The indicator circuit provides a pulsed voltage to the LH warning lamp on a GR wire or the RH warning lamp on a GW wire from the direction indicator switch.

Main beam warning lamp

Gives an indication that the headlamps are being operated on main beam by switching battery voltage to the lamp on a UW wire via fuse A1 in the passenger compartment fuse box. Since the other side of the lamp is permanently connected to earth on a B wire the lamp will illuminate

Airbag warning lamp

The airbag warning lamp receives battery voltage from fuse A4 on a W wire and a control signal from the airbag control unit on a P wire. The warning lamp will illuminate for approximately six seconds when the starter switch is turned to position II before extinguishing. There is a system fault when any of the following symptoms are observed:

• The warning lamp fails to illuminate when the starter switch is turned to position II.
• The warning lamp fails to extinguish after approximately six seconds.
• The warning lamp flashes or illuminates continuously while the car is being driven.