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2007 D3 locked in P.
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Fjellmann
 


Member Since: 03 Apr 2018
Location: Outside US
Posts: 9

Norway 2007 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3
2007 D3 locked in P.

Hello.
I have a 2007 D3 that is locked in P.
I get the following error messages:
P0928-00 Gearshift lock solenoid -circuit/open.
P0929-00 Gearshift lock solenoid -circuit range/performance.
I have removed the cover around the gear lever and forced it into drive. I then manage to drive the car, but get this message and F in the display: Transmission fault reduced gears.

I have checked the following:
1. Replaced brake light switch.
2. Checked all brake light bulbs.
3. Checked trailer connector for corrosion and checked that it works.
4. Applied power to the solenoid and checked that it works.
5. Checked the connector on the automatic gearbox and it is visually fine with no corrosion.
8. Cleared all fault codes.
9. Did a hard reset
10. Measured battery voltage and checked contacts. Battery voltage is 12.7v
11. Measured volts to solenoid. Measure 11v and get no changes in voltage when I press the brake pedal.

I also get this error code when I read error codes: U0402 Invalid data received from transmission control module. Could this error code have something to do with my problem?

Now I'm running out of ideas on where to troubleshoot more. Do anyone have any tips on other things I should check out to fix this problem?  
Post #236439215th Mar 2024 2:32 pm
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Telfordsteve
 


Member Since: 09 Nov 2017
Location: Telford
Posts: 76

United Kingdom 2007 Discovery 3 TDV6 Pursuit LE Auto Java BlackDiscovery 3

When this happened to mine it was just fuse no 30 (engine compartment) transmission ECU was blown - so replaced but has now blown again. I hope yours is as simple.  
Post #236439315th Mar 2024 2:42 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 4658

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

The solenoid is fused in the BCM behind the glove box, fuse 44.

The "U" code is a comms fault as a result of P0928/9 and will resolve itself when the main fault "P" codes are sorted. Thumbs Up yµ (idµ - eAµ) ψ=mψ

  
Post #236440715th Mar 2024 4:29 pm
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Fjellmann
 


Member Since: 03 Apr 2018
Location: Outside US
Posts: 9

Norway 2007 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

Thanks for the tips. I have checked both fuses that you mention and they are ok  
Post #236441415th Mar 2024 7:35 pm
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dpround
 


Member Since: 02 Aug 2022
Location: Llanfairpwll
Posts: 15

United Kingdom 

If you can, unplug the solenoid and put 12v across it from another source and see if it moves. You could also try measuring the solenoid's resistance. I am wondering if the solenoid has failed this time. My car did similar, loads of errors etc and stuck in park, but in my case it was the fuse as others have already suggested.  
Post #236527327th Mar 2024 10:20 am
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Fjellmann
 


Member Since: 03 Apr 2018
Location: Outside US
Posts: 9

Norway 2007 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

Hello. Thanks for reply.
I have tried connecting 12v from another source and the solenoid then works just fine.
Starting to get quite frustrated at not being able to figure out what the problem is here.  
Post #236527727th Mar 2024 10:43 am
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1783

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

Just a thought, have you checked the connections from the keylock as that is part of the control prior to being able to move the gear lever?  
Post #236540329th Mar 2024 11:05 am
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10365

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

need to check wires between the solonoid, and whereever it goes.

If they are both good, then whatever is driving it could be faulty.  
Post #236540429th Mar 2024 11:13 am
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