Question about 2003 Chevrolet Impala
My vehicle has the "SERVICE TRACTION SYSTEM" indicator visible on dashboard. I have replaced the brake pads and reset the computer. However, light will not go off. What could be my problem?
On the rotors you probably noticed two lines one for the brakes and the other is your traction control magnet which picks up a signal to tell the computer to control the braking system when the wheel locks up in hard braking, you either damaged the magnet or it picked up some metal shaving while replacing the brake pads
Posted on Aug 26, 2008
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Posted on Jan 02, 2017
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Feb 03, 2016 | 2001 Buick LeSabre
The ability of the control modules to communicate through the serial data circuit
The identification of any stored diagnostic trouble codes (DTCs) and their status
The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
The traction control switch is a input to the body control module, with a scan tool hooked up an looking at BCM data ,check for conformation the traction control switch is turning on an off !
SERVICE TRACTION SYSTEM The IPC illuminates the SERVICE TRACTION SYSTEM indicator in the message center when the electronic brake control module (EBCM) detects a malfunction in the traction control system. The IPC receives a class 2 message from the EBCM requesting illumination. The SERVICE TRACTION SYSTEM indicator illuminates for 60 seconds when the condition is present. The IPC sends a class 2 message to the radio in order to activate an audible warning.
TRAC OFF The IPC illuminates the TRAC OFF indicator when the following occurs:
The electronic brake control module (EBCM) inhibits the traction control system due to a malfunction in the traction control system. The IPC receives a class 2 message from the EBCM requesting illumination.
The body control module (BCM) detects that the traction control switch has been pressed (signal circuit is low). The BCM sends a class 2 message to the EBCM in order to disable traction control. The IPC receives a class 2 message from the EBCM requesting illumination. The BCM sends a class 2 message to the radio in order to activate an audible warning.
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