Advanced Trac issues

[Svt_alex03]

Ive had some issues with the traction control system since owning my car that I have yet to track down. Every time on startup I get a message and see both traction control icons and ABS lit up as well as a "service advance track" message. There are no codes to retrieve and from what I'm seeing with a snap on scanner nothing seems to be out of the ordinary. I've tried switching out ABS modules, checked all the fuses that could be blown, disconnected the battery and don't quite trust my local dealership to have any hands on the car. Wondering if anyone else has had these issues and could provide some helpful insight? Maybe wheel speed sensor?

 

[PC03GT]

Ive had some issues with the traction control system since owning my car that I have yet to track down. Every time on startup I get a message and see both traction control icons and ABS lit up as well as a "service advance track" message. There are no codes to retrieve and from what I'm seeing with a snap on scanner nothing seems to be out of the ordinary. I've tried switching out ABS modules, checked all the fuses that could be blown, disconnected the battery and don't quite trust my local dealership to have any hands on the car. Wondering if anyone else has had these issues and could provide some helpful insight? Maybe wheel speed sensor?

Check ALL your grounds

 

[Svt_alex03]

I will check into that

Check ALL your grounds

 

[Vinnie_B]

@Svt_alex03 The only module that would cause this SERVICE ADVANCETRAC in the message center on startup is your ABS Module. Your ABS module might need to be recalibrated. It's also possible other issues in the ABS module are the cause. Your issue needs to be Diagnosed properly. If you were local we could definitely resolve this issue.


Principles of Operation

Anti-Lock Brake System

The ABS module continuously monitors brake pedal input, lateral vehicle motion and the rotational speed of each wheel. The PCM sends the brake pedal switch information to the ABS module over the High Speed Controller Area Network (HS-CAN) while the Restraints Control Module (RCM) sends lateral acceleration sensor information to the ABS module over a private HS-CAN . Wheel speed information is retrieved by the ABS module using 4 active wheel speed sensors, one for each wheel. When the ABS module detects an impending wheel lock during a braking event, the ABS module modulates brake pressure to the appropriate brake caliper(s) by opening and closing the appropriate solenoid valves inside the Hydraulic Control Unit (HCU) while the hydraulic pump motor is activated. Once the affected wheel(s) return to the desired speed, the ABS module returns the solenoid valves in the HCU to their normal position.

The ABS module has 2 self-test options, one is carried out using a scan tool and the other is carried out when the ABS is initialized (ignition ON). During either self test the ABS module carries out a preliminary electrical check of the system sensors and activates the hydraulic pump motor for approximately one-half second. During this time, a buzzing or humming noise may be heard and a vibration may be felt in the brake pedal and is a normal condition. During the module initialized self test, the pump motor check is carried out at approximately 16 km/h (10 mph). Any malfunction detected in the system causes the module to set a DTC, disable the ABS function and send a message over the HS-CAN to the Instrument Panel Cluster (IPC) to illuminate the ABS warning indicator. However, the base hydraulic power-assist braking system will function normally.




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