LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Saturn >> 2004 >> Ion Red Line >> Repair and Diagnosis >> Brakes >> Antilock Brake System And Traction Control System >> Diagnostic Information and Procedures >> Traction Control Indicator Always On >> Test Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

  1. 2:  Confirms if the scan tool can monitor the on and off the Traction Control Switch LED indicator.
  1. 4:  Verify if the circuits going to the Traction Control Switch is at fault.
Traction Control Indicator Always On

Step Action Yes No
Schematic Reference: ABS Schematics 
Connector End View Reference: Body Control System Connector End Views in Body Control System
1 Did you perform the Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - ABS 
2 
  1. Using a scan tool, select the BCM Data Display mode.
  2. Select Chassis Data Display.
  3. In the Displays Test mode, monitor the TRAC switch LED indicator.

    Press the TRAC switch. The LED should change states.

Does the TRAC switch LED display on the scan tool change when pressed?		 Go to Step 3  Go to Step 4 
3 Test the traction control indicator control circuit for a short to voltage.
Did you find and correct the condition?		 Go to Step 6  Go to Step 5 
4  Test the Traction Control Switch Signal circuit or Traction Control Switch for an open.
Did you find and correct the condition?		 Go to Step 6  Go to in Testing for Intermittent Conditions and Poor Connections Wiring Systems
5 Replace the BCM. Refer to Traction Control Switch Replacement .
Is the replacement complete?		 Go to Step 6  -
6 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
scientia non olet · About LEMON Manuals