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HardCharger

Member Since: 03 Mar 2013
Location: Manila
Posts: 737

2011 Defender 110 Puma 2.4 SW Stornoway Grey

Radio and A/C Dies for a Few Seconds with Some Dash Lights

Hi All!

I encountered this issue on two separate occasions, venues, and times.

I'd be driving along then all of a sudden, the radio and the A/C dies and you'll see the park brake light, ABS light, and TC light come on for about a second or three then all will resume as normal. While all this is happening, engine power and drive are still proceeding as normal.

I called a friend of mine who works on Defenders and apparently I'm the 2nd owner of a 2.4 Puma to call in with this issue, the other guy is located in a different area than I am. The other guy noticed that for him, it happens in a particular area and has confirmed this by passing the area more than once with the symptoms occurring every time. He attributed his incidents to either a cel tower or a power node or something like that. In my case, I was not in the same area when both my incidents happened.

Anyone else experience this? Is there a fix?

26th May 2015 6:22am

HardCharger

Member Since: 03 Mar 2013
Location: Manila
Posts: 737

Experienced this again today although slightly different happenings.

Was about to back out of the drive way so I started the truck up and turned on the AC, heard the condenser fan kick in but there was no air coming out of the vents. Tried the blower switch, no joy as well. Then I noticed the car charger wasn't lit so the entire center cluster had no power. Dash warning lights stayed off this time though. So I backed up the drive way and went to close the gate, when I get back, the car charger was again lit and power was restored to the center console.

I'm suspecting a loose connection somewhere as I think we maybe yanked something when we changed the bulb in the hazard light switch? We just pried open the center bit without disconnecting the other connections. I just want to run this by everyone to see if it's a simple fix or something more sinister is afoot.

The truck becomes an in-patient this weekend to have the cooling coil thermostat replaced so maybe once they put everything back together things will be OK?

28th May 2015 3:54am

munch90

Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

maybe aux connection on the back of ignition switch

28th May 2015 6:44am

HardCharger

Member Since: 03 Mar 2013
Location: Manila
Posts: 737

Thanks for the lead munch90, I'll have them check it out when they work on it this weekend.

29th May 2015 3:02am

munch90

Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

or maybe ignition switch itself

29th May 2015 5:59am

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black

Check the relays under the seat box, over time the wobble lose

29th May 2015 7:02am

HardCharger

Member Since: 03 Mar 2013
Location: Manila
Posts: 737

Hi munch90, actually the ignition switch was checked a few months back and it's still in good condition so it can't be that though I'll tell them to look at it again.

Hi bpman, will give those a push then. Haven't done that yet. Thanks!

29th May 2015 7:07am

Clive

Member Since: 21 Mar 2014
Location: Littleborough
Posts: 467

2004 Defender 90 Td5 X-Tech LE Zambezi Silver

Not a Puma I know, but I had a similar problem recently with my Td5 90, I eventually traced it to a loose earth connection between chassis and bulkhead, a number of system earth points come together at the bulkhead and I was getting a voltage drop across the bad connection.

Just a thought.

29th May 2015 9:23am

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20371

^^^^ I was going to suggest that too, earthing faults can cause all manner of weird happenings especially lights lighting up and all sorts.
An easy earth to access is the rear lighting earth strap on the transfer box, check that is tightened and a clean connection.
If you've had a clutch changed then it might well have been disconnected or worked loose it's self.
There is another on the the front chassis outrigger, think it's the OS but can't quite remember.
The tow socket if you have one may be worth looking at too but leave that until last.
I'm thinking earthing myself.

29th May 2015 9:34am

HardCharger

Member Since: 03 Mar 2013
Location: Manila
Posts: 737

Thanks! Definitely worth a look at those places then.

3rd Jun 2015 6:14am

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