jbizzyblox
12-15-2012, 11:54 PM
My 07 rs4 has abs light ad esp light on.
I have air in my system from when i left brake lines upfront unplugged, I needed to change control arms and bushings.
I have not been able to flush air out with conventional bleeding it is still squishy .I have to pump brakes several times before I build braking firmness/pressure.
I tried bleeding abs pump with Vag com with no success or so I thought?
Through basic settings group ABS 003
groups 002
click go!
Error . Not available !
Is it the vagcom cable itself or module ?
I only have 15 k on the car how can abs module go bad with such little mileage ?
Under vag-gom I had front wheel abs sensor codes g87 g85 i believe, I cleared the data it was definitely right /left abs sensor , and low voltage at terminal 30 .codes have been cleared I removed sensors cleaned area and sensors and reinstalled .They were dirty .
I go to advanced settings under ABS
and run output test, I hear pump working however it doesn't cut off automatically the way it would under basic function , I get a message to click Activate I do so, press brakes, and I get a firmer feel as ABS is active, I need to hit next button for ABS pump to stop and lights to go off.
those codes are gone but low terminal voltage is still found.
I ran output test on abs sensors and with car in air, all 4 wheels turn and and measured through Vag com so ABS sensors are sensing speed can't be my problem ?
I am going to pressure bleed . hope it helps.
I researched and symptoms for faulty brake light switch are absent.
so I highly doubt its attributable to this , lights go off never stays on and always illuminate when i depress brakes.
I have air in my system from when i left brake lines upfront unplugged, I needed to change control arms and bushings.
I have not been able to flush air out with conventional bleeding it is still squishy .I have to pump brakes several times before I build braking firmness/pressure.
I tried bleeding abs pump with Vag com with no success or so I thought?
Through basic settings group ABS 003
groups 002
click go!
Error . Not available !
Is it the vagcom cable itself or module ?
I only have 15 k on the car how can abs module go bad with such little mileage ?
Under vag-gom I had front wheel abs sensor codes g87 g85 i believe, I cleared the data it was definitely right /left abs sensor , and low voltage at terminal 30 .codes have been cleared I removed sensors cleaned area and sensors and reinstalled .They were dirty .
I go to advanced settings under ABS
and run output test, I hear pump working however it doesn't cut off automatically the way it would under basic function , I get a message to click Activate I do so, press brakes, and I get a firmer feel as ABS is active, I need to hit next button for ABS pump to stop and lights to go off.
those codes are gone but low terminal voltage is still found.
I ran output test on abs sensors and with car in air, all 4 wheels turn and and measured through Vag com so ABS sensors are sensing speed can't be my problem ?
I am going to pressure bleed . hope it helps.
I researched and symptoms for faulty brake light switch are absent.
so I highly doubt its attributable to this , lights go off never stays on and always illuminate when i depress brakes.