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stevejohns72

Member Since: 09 Sep 2013
Location: Monrovia, Liberia
Posts: 16

TD5 shuts off in Traffic and won't start.

I was driving in the traffic and suddenly my Defender TD5 engine shutdown. I tried restarting it, but noticed that the engine management light and glow plug light will not come ON when the ignition switch is ON. As a result the engine fails to start.

I plugged my Hawkeye diagnostic tool and it initially reported a failure in communicating with the ECU. After several tries, communication was established. I read through the errors and one error that stood out, was "low voltage to the ECU". I've checked and wiggled the fuses and relays beneath the seat and dash board, but to no avail.

Can anyone help!!!!!

10th Jun 2019 2:04pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

check earthing i.e. start at battery neg make shore sound

10th Jun 2019 2:18pm

Steve B

Member Since: 22 May 2009
Location: Warwickshire
Posts: 587

I was driving mine once and the inertia switch fell off the bulkhead and tripped! The plastic case had cracked.

It sits at the back of the engine bay on the bulkhead, Black with a rubber cap.

10th Jun 2019 7:02pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5811

2006 Defender 110 Td5 USW Zermatt Silver

Earth to fuses and relay in underseat box?

10th Jun 2019 8:59pm

MadTom

Member Since: 10 Sep 2013
Location: Olomouc
Posts: 641

Check battery voltage, in case of not correctly working alternator, and battery discharged with running engine instead of charging it. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo

11th Jun 2019 5:44am

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

I had a problem like that. Unplugging and plugging back in the black plug helpt me to restart it everytime. I cleaned both plugs (no oil) and made an additional earth from the ecu housing to the battery negative. No problems after that ( more than a year) Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

12th Jun 2019 7:42pm

stevejohns72

Member Since: 09 Sep 2013
Location: Monrovia, Liberia
Posts: 16

Thanks guys for the valuable input. I tried all the various suggestions, but finally narrowed it down to a faulty ECU. I sent the ECU to a company in the UK called ECUTESTING. They repaired it and sent it back to me.

My Defender is back on the road again with increased power output.

8th Jul 2019 10:50am

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