Disco 1 D1 ABS

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basquen

Member

Posts

44

• Today at 10:32

• #1

Hi,
Does anyone have a wiring diagram for the ABS on a 1997 Discovery 300tdi EDC ?
The blink test is giving a 3-1 error "Hydraulic modulator solenoid valve, RH front outlet - ECU connection/wiring"
I need to start with a continuity test on the loom between the ECU and the pump.
Is there a means to cycle this valve by itself ?

 

sierrafery

Well-Known Member

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Arad/Romania

• Today at 11:15

• #2

Hi, you can download for free the whole electrical trubleshooting manual from the web just search "Discovery 1 ETM pdf" or see THIS , just read the introducting user guide to know how to corroborate the wire colours and connector views cos it's not very human friendly

 

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basquen

Member

Posts

44

• Today at 12:02

• #3

Thanks ! As you say, not human friendly but I can at least decipher the connector pins and the wire colours.

 

B

basquen

Member

Posts

44

• Today at 13:33

• #4

basquen said:

Thanks ! As you say, not human friendly but I can at least decipher the connector pins and the wire colours.

Click to expand...

Ok so I've check the continuity of the ECU/ABS loom and all is ok.
So now I need to find a way to test the RH front solenoid valve.

 

sierrafery

Well-Known Member

Posts

18,288

Location

Arad/Romania

• Today at 14:53

• #5

basquen said:

So now I need to find a way to test the RH front solenoid valve

Click to expand...

Find the wire which ges to it from the modulator's connector and splice into it with +12V cos afaik the earth is common for all and if it clicks it should be OK, or find the wire for other solenoid, measure resistance and compare if you see what i mean

 

B

basquen

Member

Posts

44

• Today at 15:10

• #6

So just to double check if I'm reading the ETM correctly I need to splice in 12v to the SR grey-red wire that goes between pin 1 on the modulator and pin 6 on the ECU ? (red on screen capture attached)

 

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