Diagnostic Strategies

How to Troubleshoot DTCs
The troubleshooting flowchart procedures assume that the cause of the problem is still present, and the ABS indicator and possibly the brake system indicator are still on. Following the flowchart when the ABS indicator does not come on can result in incorrect diagnosis. The connector illustrations show the female terminal connectors with a single outline and the male terminal connectors with a double outline.

1. Question the customer about the conditions when the problem occurred, and try to reproduce the same conditions for troubleshooting. Find out when the ABS indicator and possibly the brake system indicator came on, such as during ABS control, after ABS control, when the vehicle was at a certain speed, etc.
2. Clear the code and, test-drive the vehicle. If the code resets immediately, refer to the code troubleshooting chart.
3. When the ABS indicator and possibly the brake system indicator does not come on during the test drive, but troubleshooting is done based on the DTC, check for loose connectors, poor terminal contact, etc., before you start troubleshooting.
4. After troubleshooting, clear the DTC, and test-drive the vehicle. Make sure the ABS indicator and possibly the brake system indicator does not come on.