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Audible Alarm Triggers

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Rolo911

Member Since: 25 Aug 2014
Location: Norfolk
Posts: 4

2005 Discovery 3 TDV6 SE Auto Indus Silver

Audible Alarm Triggers

Gents hope you can help please? My audible alarm keeps going off at randome times causing no end of grief. It happened once before and this site directed me to one of the rear doors that wasn't locking when the key fob was pressed. Changed the actuator and it all worked fine this was 8 months ago so I believe this fault is completely unrelated. I have checked all the doors and they all seem fine.

I have recently bought a Faultmate FCR and I keep getting the following codes;

Body Control

B1B02 - low freq coil - Gen signal failure.

B1B70 x3

B1C14 - Driver mirror motor feedback circuit

B1C57 - Passive start ignition relay coil circuit unused relay drive

B1D17 - Battery backed sounder Bus signal/message failure missing A message - Permanent

U0155 - Lost comms with instrument cluster control module Bus signal/message failure

INSTRUMENT PANEL

U0102

U0132 Lost comms with ride level control module.

After reading this site intensely I have cleaned out the water from below BJB. My battery voltages are

12.28V without engine running and 14.8V with the engine running.

Your guidance would be greatly appreciated

Last edited by Rolo911 on 19th Oct 2015 2:27 pm. Edited 2 times in total

18th Oct 2015 4:28 pm

Rolo911

Member Since: 25 Aug 2014
Location: Norfolk
Posts: 4

Forgot to say it is a 55 plate Disco 3

18th Oct 2015 4:30 pm

Landylover6

Member Since: 31 Jul 2015
Location: UK
Posts: 18

Hi mate sorry can't assist with your problem but I'm having the same issue with the back doors not locking now and then. Where's the actuator located? How much is a replacement?

18th Oct 2015 4:32 pm

JMack

Member Since: 02 Aug 2014
Location: Edinburgh
Posts: 1517

2006 Discovery 3 TDV6 Commercial Manual Java Black

Don't now about your fault codes, but I has similar fault and it was the bonnet catch/alarm contact.

Easy enough to test, unplug the cable on the drivers side bonnet catch. Bend a paper-clip into a U and put one end into each of the pin holes and tape it all up. Then see if the alarm still goes off.

A new switch fixed the problem.

18th Oct 2015 6:31 pm

Rolo911

Member Since: 25 Aug 2014
Location: Norfolk
Posts: 4

JMack

Bonnet switch has been shorted out so it can't cause this particular snag. What would make the alarm go off with the doors unlocked?

18th Oct 2015 6:37 pm

longclose

Member Since: 07 Mar 2015
Location: Dorset UK
Posts: 234

2008 Discovery 3 TDV6 HSE Auto Tonga Green

Silly question, have you tried clearing the fault codes, if so I assume they return? Normally the bong will indicate a message in the driver display but if comms has been lost then I would assume not.

No expert on D3 CANbus or faultmate but others on the forum can hopefully steer you as most capable LR specific tools will let you check I/O on doors etc.. If you have had water on or around the electronics this will cause all sorts of issues.. Owning a Discovery 3 is like dating a model.. a firm body and shape, wow.. the ride is fantastic >

for this your wallet can take a pounding and you worry about being deflated at any time...
2009 Model D3 HSE

18th Oct 2015 8:16 pm

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