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rpmdiag, Tech and Instructor
Category: Chevy
Satisfied Customers: 7480
Experience:  Since 1975
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I have a 2001 Silverado Z71 pickup Brake light and ABS

Customer Question

I have a 2001 Silverado Z71 pickup Brake light and ABS lights come on at times. I scanned the codes and it says rear wheel speed sensor and ABS controler problem
JA: Is it just the ABS light? Or is the brake system warning light on, too?
Customer: Both lights come on at same time
JA: Are you fixing your Silverado yourself? What have you tried so far?
Customer: I am repairing myself Have checked all grounds and connectors so far and speedo does work fine
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 8 months ago.
Category: Chevy
Expert:  rpmdiag replied 8 months ago.

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

Expert:  rpmdiag replied 8 months ago.

Okay, that's good that you have a scan tool.

Set it up in bidirectional mode to test the module, then set it up to ping ALL the nodes for any possible communication faults.

If all this is good, then it wouldn't be uncommon to have a bad module.

Thanks, Ron

Expert:  rpmdiag replied 8 months ago.

Hi, I'm just following up with you to see if you have any more questions.
Thanks, Ron