Parking Sensor Warning Light and Alarm

Questions not related to the fuel type, like Manual Gearbox, Body Work, Lights, Interior trim and Seats, Steering, Brakes, Beeping, Wheels and Tyres to be asked in this topic only.

Audio has its own section - see further down the page.

Please provide as much information as you think may be relevant like recent work on the car and you can attach photographs directly to your topic using the form below the text box.
Forum rules
One question per topic.
No Engine questions
Think: Manual Gearbox, Seats, Bodywork, Lighting, Interior, A/C, Heater, Wheels, Steering, Brakes, Tyres and Suspension
My Name: Dundalkdiddy

Posts: 1
Joined: Sat Sep 08, 2012 8:24 pm



I have an automatic 55 C3 with factory fitted parking sensors. When I select reverse gear, the reversing sensor switch flashes and I get an audible tone. The owners manual states that I should take it to a dealer.

Does anyone know what the problem maybe?


Diddy :roll:
User avatar
My Name: Arfur Dent

Posts: 3433
Joined: Sat Jul 23, 2011 3:47 pm
Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 319 times
Been thanked: 121 times


Welcome to the forum Dundalkdiddy,

Does the fault coincide with pressure washing of the bumper?

I think the first things to check are the sensors in the bumper and their associated wiring. The fault could be due to a faulty sensor, just one hopefully. Find another sensor and then substitute each sensor in turn until the fault clears itself. While you are substituting, check the wiring at the same time.

There are some C3 parking sensors here that will replace a faulty one.

Citroen C3 Parking Sensor
Citroen C3 Parking Sensor
You can add an avatar to your account - Avatar or change your vehicle details - Car Bio or even add a signature to your posts - Signature. But this is not all you can do in the User Control Panel :)
  • Similar Topics
    Last post