 | Home > Puma (Tdci) > P037D29 Glow plug relay sensor fault code help!! |
 
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11240   
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A quick search for the fault code revealed the following thread that may help. The circumstances were different (the OP was in Mongolia
 ) but it suggest that one or more duff glow plugs may be the problem.
http://www.defender2.net/forum/post291043.html Darren 110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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8th Sep 2017 9:04am |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
may help
https://www.google.co.uk/search?client=fir...-at_EBS2M: Last edited by dorsetsmith on 26th Oct 2021 11:33am. Edited 1 time in total |
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8th Sep 2017 10:07am |
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127 
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Check to see what or if there is voltage at the plugs,
Then remove to visually check they are working. 80" 80" 86" 88" 90" Wanted, Forward Control Anything considered. |
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8th Sep 2017 10:16am |
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| M94PUMA Member Since: 16 Dec 2016 Location: Hampshire Posts: 103 
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So I've just fitted 4 new plugs and the fault code still won't clear, I've now ordered a new glow plug relay, main relay, and starter relay,
Shall keep you updated, |
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12th Sep 2017 9:11pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19568
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Check for any broken or chafed wires too.
 Diesel$ Live$ Matter. ⛽️🛢️👨🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧 |
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12th Sep 2017 9:21pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
P037D29 Glow plug relay sensor circuit.
the glow plug relay is control by ECM witch use engine temp and air ambient temp for out side air temp 1. ECM has feed back from Glow plug relay check fuse 38 10 amp ! 2 . Check sensor circuit for engine temp and air ambient temp  Click image to enlarge |
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13th Sep 2017 8:51am |
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| M94PUMA Member Since: 16 Dec 2016 Location: Hampshire Posts: 103
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So I had no Fuse 39 fitted and my fuse 38 was a 5 amp not 10, have corrected it now,
See what happens! |
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14th Sep 2017 12:23pm |
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| M94PUMA Member Since: 16 Dec 2016 Location: Hampshire Posts: 103
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Fuse 39 fitted and problem solved 🙈🙈🙈🙈
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14th Sep 2017 12:53pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
That's interesting fuse 39 is power supply to the MAF/IAF Sensor
 sheet 4 (B ) |
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14th Sep 2017 1:17pm |
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| M94PUMA Member Since: 16 Dec 2016 Location: Hampshire Posts: 103
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Fuse 39 is still connected to the glow plug system looking at the diagram?
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14th Sep 2017 2:24pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
fuse 39 reserve power when main relay is closed, main relay also supply + to the glow plug relay coil and ECM provides - to control relay coil
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14th Sep 2017 2:34pm |
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| M94PUMA Member Since: 16 Dec 2016 Location: Hampshire Posts: 103
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Update: problem is the 60amp fuse blowing soon as ignition switches on. Where shall I start looking for shorts? All new plugs, link cable is in good condition, all new relays, can't see any exposed cable anywhere, arghhh help please 🙈😭
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18th Sep 2017 8:42pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
Check for any chafed wires too.
AS custom90steve ^ check dash wiring loom and also check down to the driver seat box too |
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19th Sep 2017 6:37am |
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