2011 Volvo vnl780 TCS & ABS losing throttle & power

Kj1000 · Mar 28, 2024

kubasj05 said: ↑

I have the same problem guys, just randomly flashing TCS, loss of power on bumpy or even road. I have a daycab and im local but this thing is driving me crazy. Did you ever find out what was his issue, thanks in advance
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Kj1000 · Mar 28, 2024

Did you ever find a solution I have the same problem

Adamali21 · Mar 28, 2024

It was a wheel speed sensor which is still considered as an abs your right to last drive axle

Adamali21 · Mar 28, 2024

Kj1000 said: ↑

Did you ever find a solution I have the same problem
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Speed Wheel Sensor

Kj1000 · Apr 11, 2024

Volvo_780 said: ↑

Randomly like today when I picked it up from the shop I drove about 30 miles and it started to act up then when it does act up it hard to drive since you lose throttle
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Did you fine the issue?

AMLLC · Sep 29, 2024

Snailexpress said: ↑

I'll decipher codes for your dealer.
MID 136 - ABS module
SID 254 - Stability control
fm 12 - no data from wheel speed sensor or big data fluctuation.
How it's working - ABS read all 6 wheel speed sensors and compare them. If signal frequency from left side wheel higher then from right side ABS module think your truck turning right or if difference between signals frequency too big truck is jack knifing. In last instance ABS will send command to Vehicle ECU to command Cummins ECU to drop power. There are another 2 sensors involved in this process. Steering wheel sensor and Yaw sensor.
You need someone with Bendix Acom Diagnostic computer to read ABS and run test. Did you have any steering repairs recently? Probably need sensors re calibration.
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This is the problem I have it on my truck right now, can u pls help me fix it?

Adamali21 · Oct 2, 2024

AMLLC said: ↑

This is the problem I have it on my truck right now, can u pls help me fix it?
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Speed wheel sensor rear axle right tires

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