Does WIS give diagnostic information for trouble codes?

[atikovi]

I just replaced the conductor plate in my W221 with a virginized used one, and I am getting:

• 2725 The internal electrical check of component Y3/8y6 (B2 brake control solenoid valve VGS) has failed

That wasn't there before the plate was replace so I'm wondering if they send me a defective one.

 

[ajlsl600]

Have you re checked all Yr connections then noted and cleared that code? Does it come straight back? Where did you get the conductor plate?

 

[atikovi]

Have you re checked all Yr connections then noted and cleared that code? Does it come straight back? Where did you get the conductor plate?

All connections are tight. Code comes right back after clearing it. Got the conductor plate at: https://www.ebay.com/itm/275408182185

 

[atikovi]

I swapped solenoids and the same code came back, so the Ebay seller is sending out a replacement conductor plate. Will see how it works.

 

[ajlsl600]

I swapped solenoids and the same code came back, so the Ebay seller is sending out a replacement conductor plate. Will see how it works.

Think that's likely ur issue. Be very careful not to introduce another issue whilst doing that.

 

[mioba]

WIS is workshop manual - how to diagnose, repair, replace.
STAR (xentry is the diags) that will point to WIS.
Intertwined

 

[JoeHorner]

WIS doesn't have much diagnostic information, it's more procedures for removal / fitting.

Xentry / DAS (depending on the model) has step-by-step diagnostic routines - "test X, result should be Y. Is result ok? (Y/N)" and so on until it tells you to "replace Z".

They basically lead you through a logical diagnostic tree for that particular symptom / code which includes any other systems that might be affecting things - which might not be immediately obvious given the huge number of controllers involved.

You can also run quite a lot of those diagnostics in "simulation" mode without actually connecting to the car where they involve measurements like voltages or checking connectors which don't need a live connection.

 

[LostKiwi]

Check for a bent pin in the plug that goes to the conductor plate.