ABS light on, HDC, and TC

[capthook]

Okay, my wife took the truck around the corner today and 3 lights are staying solid : ABS, TC, and HDC. There has been a slight hesitation lately, but nothing to do w/ any of these systems. Tried batt. disconnect, no luck still lights up. Any suggestions? We're dumbfounded I hear this could be a wheel speed sensor?

 

[capthook]

Can't figure it out. No exposed wires now that I've inspected it throughly. ABS unit puts off a slight buzz even w/ motor off. Normal?

 

[testuser]

I think that is normal. Mine does it too.

 

[capthook]

Good. It's nice to rule that $700 modulator out Taking it to the LR dealer (Hubacher Caddillac + LR in Sacramento) in the morning + will post what the problem was. I'm thinking, wheel speed sensor again maybe. I also have a slight hesitation between 35-50mph lately, and I think it may be related to this speed sensor perhaps? I'm just shooting in the dark at this point without codes I guess

 

[capthook]

Got a call from the dealer this morning they tell me two error codes came back,

1. for the driver's side wheel hub / speed sensor - said it was loose in conversation - $425 in parts + labor
2. ABS modulator has a cyl. stuck? - $1,800 - new part / $900 used

Faults stored:

1) Right Front hub fault (wheel speed sensor erratic reading) due to loose hub

2) Shuttle valve electrical fault : replace rt front hub assembly
changed brake fluid in resevoir, cleared fault codes: told me the modulator was 1800 new. I said lets see if the fault lights come on again

Parts:

1: TAY100060 (FLANGE ASSEMBLY) $432.05



Sooooo.... I'm curious - did I really need the flange assembly if it was a loose hub?

 

[capthook]

3 days and (knock on wood) no lights. Just hope another one doesn't go!