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DISCO3.CO.UK > Technical (D3)

Four-wheel drive high ratio - short circuit to ground
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Sean North
 


Member Since: 09 Mar 2016
Location: North of Scrabster.
Posts: 452

Scotland 2012 Discovery 4 3.0 SDV6 HSE Auto Keswick GreenDiscovery 4
Four-wheel drive high ratio - short circuit to ground

2006 poverty spec - other than a very occasional bong bong no special programs/suspension lowered issue (which am sure is steering angle sensor related) there's no apparent faults relating to this code.

So, what does CODE : P1807 relate to ?

The only mention of this I can find is combined with numerous other errors, and appears to be due to a faulty connection somewhere ? - but I've just got this single error code logged (and a few unrelated ones)

I did notice that the low ratio indication lamp/bulb/LED below the switch isn't working - however low ratio selection does work.

For completeness here are all the permanent codes - the stepper actuator ones have only appeared for the first time this morning.

Any suggestion/pointers would be welcome.

FAULT 1 OF 7
ECU: Transfer Case
CODE:P1807
Four-wheel drive high ratio - short circuit to ground
(PERMANENT)

FAULT 2 OF 7
ECU: Body Control
CODE:B1D14
Interior lamps 2 circuit
(PERMANENT)

FAULT 3 OF 7
ECU: HVAC system
CODE:B1B75
Front foot-face mode stepper actuator
(PERMANENT)

FAULT 4 OF 7
ECU: HVAC system
CODE:B1B76
Front left air blend stepper actuator
(PERMANENT)

FAULT 5 OF 7
ECU: HVAC system
CODE:B1B77
Front right air blend stepper actuator
(PERMANENT)

FAULT 6 OF 7
ECU: HVAC system
CODE:B1B78
System pressure
(PERMANENT)

FAULT 7 OF 7
ECU: Audio Front Control
CODE:B1D21
Remote control switch
(PERMANENT)  
Post #163359331st Mar 2016 9:32 am
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Sean North
 


Member Since: 09 Mar 2016
Location: North of Scrabster.
Posts: 452

Scotland 2012 Discovery 4 3.0 SDV6 HSE Auto Keswick GreenDiscovery 4

polite bump Embarassed  
Post #16346532nd Apr 2016 7:56 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20868

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

I have the same code appearing on a family members D3 too. Selects High/Low fine, and drives with no issues, but that code is always a stored fault

Just trying to find time to look at it Embarassed My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #16346782nd Apr 2016 8:36 am
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Sean North
 


Member Since: 09 Mar 2016
Location: North of Scrabster.
Posts: 452

Scotland 2012 Discovery 4 3.0 SDV6 HSE Auto Keswick GreenDiscovery 4

Cheers Mikey

It's more of an annoyance to be honest - but as the low ratio indicator doesn't work, I'm pondering if its related

along the same daft way that a blown brake bulb drops the suspension and turns TR off  
Post #16346822nd Apr 2016 8:42 am
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