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Parking sensors
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A.Pires
 


Member Since: 29 Mar 2019
Location: Seixal
Posts: 22

Portugal 2005 Discovery 3 TDV6 S Manual Adriatic BlueDiscovery 3
Parking sensors

Hi all
On the Disco 3 MY05 of my son, now the rear parking sensors wont work. This model came only with rear. We replace all the four sensors and wont solve the problem. The harness sems to be in good condition (we tested the continuity of the wires with a multimeter)
What can be the reason?
Cheers
  
Post #22290668th May 2021 7:09 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10331

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Do you get any sound out the rear speaker when reverse selected ?
Does the P button flash ?
  
Post #22290708th May 2021 7:15 pm
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A.Pires
 


Member Since: 29 Mar 2019
Location: Seixal
Posts: 22

Portugal 2005 Discovery 3 TDV6 S Manual Adriatic BlueDiscovery 3
Parking sensors

No sound but the light on the dash flashes
  
Post #22290908th May 2021 7:57 pm
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Prette
 


Member Since: 16 Mar 2020
Location: Previously Stoke-ST4 (pre-pandemic), Mostly The Hague (NL) partially Lyngby (DK) certainly somewhere
Posts: 158

2007 Discovery 3 TDV6 HSE Lux Auto Causeway GreyDiscovery 3

If when you turn on the PDC no sound come from the buzzer, you might have a problem with the buzzer. Perhaps you can check it first/replace it.

The usual behaviour of the PDC is:
When you select reverse (with hand-brake off) you must hear a brief beep from the rear end. (this indicates the PDC is activated) and the light in the button is Continuously ON.

IF your hear a loooong beep from behind (and the light is blinking), one or more sensors might not be working.

IF you do not hear anything (and the light is blinking), most likely your PDC buzzer is gone.

Even better if you have a diagnostic tool to read the codes as Pete suggested. The code might tell you exactly where is the problem.

Abraço e boa sorte.
  
Post #222932310th May 2021 10:41 am
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10331

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Yeap. No sound means speaker failed.
They should measure 50 R
  
Post #222932710th May 2021 10:52 am
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