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Ask Dave Nova Your Own Question
Dave Nova
Dave Nova, Buick Technician
Category: Buick
Satisfied Customers: 1808
Experience:  ASE Master Certification. GM World Class Certification
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When hooked up to snap-on modis abs data shows requested

Customer Question

When hooked up to snap-on modis abs data shows requested torque 100% delivered torque varies from 14% to 94%
JA: Do you have the torque specs?
Customer: No
JA: What is the model/year of your Buick?
Customer: Just wondering if there is a sesor that might be bad
JA: What year is your Buick?
Customer: 2008
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Trying unless its outside my competence level, sor far just trying to download codes.
JA: Anything else you think the mechanic should know?
Customer: It did have one code low brake fluid, added fluid no recurance of problem
Submitted: 1 year ago.
Category: Buick
Expert:  Chad Farhat replied 1 year ago.

Hi, I'm Chad ,Welcome To JustAnswer, I'm reviewing your question and I will be be posting a replay ASAP

what were the fault codes retrieved ?

Customer: replied 1 year ago.
Low brake fluid was only fault code, topped off still stabilitrac off.service brake system.
Customer: replied 1 year ago.
On a snap-on modis iget torque requested 100% various delivered torque%
Expert:  Chad Farhat replied 1 year ago.

can communicate the with abs module ? have you tried ?

Customer: replied 1 year ago.
Full comms with abs
Expert:  Chad Farhat replied 1 year ago.

try unplugging the abs module inspect the connector for any damage or broken pins ,wait few minutes and reconnect will that make it clear .

you mentioned the torque varies on the scanner , sitting still at idle , do you see it goes up & down from14 to 94 % by itself or driving down the road ?

Customer: replied 1 year ago.
By itself, tends ro go to 90% when accelerating then at speed varies.
Expert:  Chad Farhat replied 1 year ago.

what is the TPS doing can you check on the scanner , if you sitting at idle , most likely you will see voltage from 0 to 5 or percentage value .

Customer: replied 1 year ago.
Car in another's hands right now.please wait. Emergency.
Expert:  Chad Farhat replied 1 year ago.

no problem just reply back when ready