AutoWatch Turn Left Alarm Kit – 12V/24V with Extension Loom

The AutoWatch Turn Left Alarm Kit includes a genuine AutoWatch audible alarm, mounting bolts, a 1.5 m extension loom and a matching vehicle-side connector.

The alarm comes with a fitted plug that connects to the extension loom. At the other end, a supplied mating 4-pin plug allows you to terminate your vehicle wiring and connect it to the kit.

What’s included

• Genuine AutoWatch 4-wire turn left audible alarm with right-turn cancellation.
• Mounting bolts.
• 1.5m extension loom.
• Waterproof Superseal connection between the alarm and extension.
• Matching 4-pin mating plug for your vehicle wiring.
• Protective split conduit on the loom’s lead-in section, with taped loom thereafter.

Optional mounting brackets

Additional mounting brackets are available as optional extras for MAN and Renault vehicles.

How it connects

1. Mount the alarm under the bonnet on the nearside (left-hand side of the vehicle), using the supplied bolts
2. Connect the alarm’s fitted plug to the matching connector on the extension.
3. Terminate your vehicle wiring into the supplied mating 4-pin plug.
4. Connect that plug to the vehicle end of the extension.
5. Check the wiring and pin positions before applying power, then test the alarm.

Alarm wiring

Wire colours below refer to the alarm.

• Pin 1 — Red: +12/24V supply.
• Pin 2 — Yellow: Left indicator trigger
• Pin 3 — White: Right-turn cancellation.
• Pin 4 — Black: Ground.

Extension loom wire colours

• Blue: Ignition supply.
• Brown: Earth.
• Blue/white: Left indicator trigger.
• White: Right-turn cancellation.

Technical specifications

• Operating voltage: 12V/24V auto-sensing.
• Alarm type: 4-wire audible left-turn warning with right-turn cancellation.
• Mounting position: Under the bonnet, on the nearside.
• Alarm connection: 4-way Superseal 1.5.
• Extension length: 1.5 m overall.
• Vehicle connection: 4-pin connector with mating plug supplied.
• Loom protection: Split-conduit

Installation notes

Route wiring away from heat and sharp edges, securing the loom every 300–400 mm. Position exposed connectors downward where subject to spray.

Identify connections by pin number and function. The alarm and extension wire colours are listed separately above; check your vehicle wiring and the kit’s pin mapping before terminating the supplied plug.

Delivery options are shown at checkout. If you need help confirming compatibility before ordering, contact the Fir Tree team.

If you need to return an item, contact our team first so we can help and confirm the correct return process.