Brakes and Traction Control: Testing and Inspection

- Before performing the Symptom Troubleshooting steps, perform the On-board Diagnostic Inspection and the ABS/TCS Hydraulic Unit System Inspection. To inspect the diagnostic trouble code, follow the Diagnostic Trouble Code Troubleshooting steps.
- For the steps that have an asterisk (*), inspect the connection of the connector with the terminal for any damage first. If the connection is poor, securely connect them, or repair or replace the appropriate parts as necessary. Wiggle and pull the wire harness to inspect each wire for corrosion, bent or loose terminals, or poor wire terminal crimps.