Option B changed error codes / What's next?

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
K

Kerly900

New Member
Posts
8
Hi fellas,

I'm kind of new in the forum as I purchased my Defender Td5 110 (2001) last November 2023.
Last week I executed "Option B" to remove the "3 Amigos" lights, I thought it worked but now I got another code that turn the lights back on. Here is the sequence of codes:

1. Originally my scanner (ThinkScan) shows these error codes:
- Shuttle Valve Switch Long Term Failure.
- ECU Ground Or Reference Ground Fault.

2. I did the "Option B" solution last week and the 3 Amigos lights went off.

3. Today the 3 Amigos came back, and after scan the Defender again, I found only this error code:
- Shuttle valve failure.

Now I wonder if the issue is with the "SLABS ECU"? But not sure how to test that.
Any guide is very much appreciated.

Thanks.
 
Kerly900 said:
Hi fellas,

I'm kind of new in the forum as I purchased my Defender Td5 110 (2001) last November 2023.
Last week I executed "Option B" to remove the "3 Amigos" lights, I thought it worked but now I got another code that turn the lights back on. Here is the sequence of codes:

1. Originally my scanner (ThinkScan) shows these error codes:
- Shuttle Valve Switch Long Term Failure.
- ECU Ground Or Reference Ground Fault.

2. I did the "Option B" solution last week and the 3 Amigos lights went off.

3. Today the 3 Amigos came back, and after scan the Defender again, I found only this error code:
- Shuttle valve failure.

Now I wonder if the issue is with the "SLABS ECU"? But not sure how to test that.
Any guide is very much appreciated.

Thanks.
Click to expand...
Hi, i've just seen this... how did you make the option B? did you cut out the switch pack's plug and prolonged out the wires or you spliced into them with connector left there? Some sch,ucks whodont really understand how this system work posted tutorials on the net with wires spliced into the existing circuit and for that's wrong, it works only if the fault is an open circuit within the modulator but if it's short circuit that one stays in parallel with the wiring mod so the wholething is useless, if you didnt cut the wires d the mod correctly but if you did and still get the SVS fault you have to check the switch pack's resistances as necessary, if these are OK check the two ground wires in front of the airbox to be tight. After all these things were ruled out and still no joy the ECU becomes suspect
 
Understood, yes I did Option B with the 'cutting the wires' method. I will check those 2 wires you mentioned in front the airbox. Actually I noticed these 2 wires plug here with no ending... Do you know what they are for?
 

Attachments

  • _20240515_162929.JPG
    _20240515_162929.JPG
    191.6 KB · Views: 88
  • _20240515_162906.JPG
    _20240515_162906.JPG
    170.1 KB · Views: 91
I did not check before, just after, as described on the option B guide.
I was thinking about that plug, as you mentioned there are 2 wires in front of airbox, sorry.

I will take a look tomorrow and let you know.
 
Kerly900 said:
I did not check before, just after, as described on the option B guide.
Click to expand...
and are they all OK?
Kerly900 said:
I was thinking about that plug, as you mentioned there are 2 wires in front of airbox, sorry.
Click to expand...
Forget about that as my mind was set for a D2, for Defender check C0362 to be well connected and continuity to the round light grey plug with one black wire behind the modulator... if all these are OK there is a bad contact on the SVS input to the ECU or ECU fault
 

Attachments

  • 1715816487354.png
    1715816487354.png
    234.8 KB · Views: 80
Thank you Sierrafery! And sorry for the late response... I was traveling to south Costa Rica not able to reply.

3 Amigos gone after a couple of days of driving (after option B), I assume the ECU just needed to 'reset/refresh' its sensor reads.

After start the car, the only light is the ABS... It stays for a couple of minutes, and then turn off... I assume this is normal.
 
By the way... I'm still curious about this connector over the brake box. Do you know what is for?
 

Attachments

  • _20240515_162906.JPG
    _20240515_162906.JPG
    170.1 KB · Views: 70
Kerly900 said:
After start the car, the only light is the ABS... It stays for a couple of minutes, and then turn off... I assume this is normal.
Click to expand...
No, it's not normal, not for a couple of minutes anyway, eventually untill the vehicle starts moving... this is the behaviour if a wheel speed sensor code was logged
Kerly900 said:
By the way... I'm still curious about this connector over the brake box. Do you know what is for?
Click to expand...
Sorry, i dont know
 
You must log in or register to reply here.

Similar threads

aribeiro
Another 3 amigos post
Replies
8
Views
688
aribeiro
aribeiro
T
td5 engine power loss
Replies
7
Views
616
transpalette84
T
Rixtonn
Freelander 1 2000 1.8 Patrol Abs ecu relay
Replies
12
Views
2K
GrumpyGel
GrumpyGel
B
Freelander 1 2006 error codes
Replies
0
Views
819
balkan estates
B
Keith_L
Disco 2 3 Amigos - sort of
Replies
3
Views
492
Keith_L
Keith_L
Back
Top