Hazard Warning Lamps

Hazard Warning Lamps

When the hazard warning switch is pressed, current flows across the switch (C0096) to the hazard warning relay (C0547) on a LG wire. The energised hazard warning relay (C0547) provides a feed back to the hazard warning switch (C0096) on an LGN wire. The hazard warning switch (C0096) is now able to provide a feed to both the LH and RH direction indicator circuits simultaneously as follows:

To the LH front direction indicator lamp (C0001) on a GR wire To the LH front side repeater lamp (C0013) on a GR wire To the LH rear direction indicator lamp (C0928 on 90 and 110 vehicles, C1745 on 130 vehicles) on a GR wire To the trailer socket (C0499) on a GR wire To the LH indicator warning lamp located in the instrument pack (C0233) on a GR wire To the RH front direction indicator lamp (C0002) on a GW wire To the RH front side repeater lamp (C0013) on a GW wire To the RH rear direction indicator lamp (C0837 on 90 and 110 vehicles, C1758 on 130 vehicles) on a GW wire To the trailer socket (C0499) on a GW wire To the RH indicator warning lamp located in the instrument pack (C0233) on a GW To the hazard warning lamp located in the instrument pack (C0233) on a BR wire.

All except the trailer socket are earthed on B wires. The flashing sequence of the lamps is controlled by circuitry contained within the hazard warning switch.

Anti-theft Alarm ECU

When the vehicle alarm system is armed, the anti-theft alarm ECU flashes the hazard warning lamps three times. To do this, the anti-theft alarm ECU (C1980 on LHD, C0057 on RHD) provides a pulsed feed to both the LH and RH direction indicator lamp circuits on a GR and GW wire respectively.

For more information on the anti-theft alarm system, refer to the Anti-theft Alarm and Central Door Locking (CDL) section of this manual.  ANTI–THEFT ALARM AND CENTRAL DOOR LOCKING (CDL).