Ok. I know I have done the searching and need some help. I have no access to an abs scanner. I pulled my svs and tested it, had a bad switch. Replaced it and did the wiring mod. However this did not fix my amigos. Where should I go next?

 

You should go to get access to a scanner next. There is no real way to solve the problem without knowing what is causing it.

 

do you mean you replaced the ABS modulator valve switches? Not sure what SVA means.... How did you wire the 'mod'? there are at least two functional ways of doing the wiring...

yes...you need a scan tool. Some work with disco...some don't....

 

While it's true that the failed solder joint in the ABS module, addressed by the Option B shuttle valve switch wiring bypass, is a very common fault triggering the Three Amigos, there may also be faults in the wiring for any of the four wheel speed sensors. That too is also very common.

Over the last 20 years I've had the shuttle valve switch fault, addressed by option B nearly 12 years ago, and I've also had faults with wiring for two of the four wheel speed sensors. I know I'm just echoing what others have said, but you really do need to have the ABS codes read to know what to do next.

 

Whenever you work on a D2 ABS setup #1 tool is a scantool that can read the stored ABS Hard Faults. Usually with the Shuttle Valve Switches it's a Soft Fault aka you're driving hit a bump and 3 Amigo's come on, perform a key cycle = 3 Amigo's are gone. When you have a Hard Fault stored nothing will clear them besides the proper scantool. You could replace every single part of the ABS system, fire it up and still have faults as the codes are stored in the SLABS Unit. Option B is great for bypassing the weak link inside the Wabco Unit itself, but if you have a faulty ABS sensor, or a sensor wire connection causing a fault it does no good if you can't pull the codes and fix the actual problem and then clear the faults. Upon clearing the ABS faults the ABS light will come on by itself upon startup, then once the SLABS Unit see's wheel speeds from the sensors = ABS Light will go out.

 

The brake light indicates you have a hard wheel sensor fault, so yeah you will need a scanner to determine which one.

 

This procedure only applies to shuttle valve bypass switch methods in which the shuttle valve bypass switch remains connected to the hydraulic control block wiring/circuit via the internal shuttle valve plug. If you're using this type of method this is a necessary step: