Anti-theft Alarm LED

Anti-theft Alarm LED

The anti-theft alarm LED is located in the instrument pack, and is supplied a constant battery feed from fuse 30 of the passenger compartment fuse box (C0595) on a PN then NU wire. The earth path for the LED (C1060) is controlled by the anti-theft alarm ECU (C1980 on LHD, C0057 on RHD) on a K wire. To extinguish the LED, the ECU supplies a voltage equal to that of battery voltage along the K wire. To illuminate the LED, the ECU withdraws the feed and replaces it with an earth path. By switching from a feed to an earth path, the ECU can control the flashing sequence of the LED.

Hazard Warning Lamps

The anti-theft alarm ECU is able to control the flashing sequence of the hazard warning lamps. When the alarm is first armed, the hazard warning lamps will flash three times. When the alarm is disarmed, the hazard warning lamps will flash once. If the alarm is triggered, the hazard warning lamps will flash until the alarm system is disarmed.

To illuminate the RH hazard warning lamps, the anti-theft alarm ECU (C1980 on LHD, C0057 on RHD) provides a feed to the hazard warning switch (C0096) on a GW wire. Simultaneously, the anti-theft alarm ECU provides a feed to the hazard warning switch (C0096) on a GR wire to illuminate the LH hazard warning lamps.

NOTE: When the alarm is triggered, the anti-theft alarm ECU flashes the hazard warning lamps alternately with the BBUS/alarm sounder.

For more information on the hazard warning lamps, refer to the Direction Indicator/Hazard Warning Lamps section of this manual.  DIRECTION INDICATOR/HAZARD WARNING LAMPS.