With TECH 2 Scan Tool

The Diagnostic Trouble Codes (DTC) function has three modes that are described below:
- DTC Information: In this mode, current or history DTC(s) stored by the EBCM can be displayed.
- History Data: In this mode, DTC data is stored for the last 12 DTC events. This data includes the following information at the time when the DTC(s) was set:
- The DTC number
- Number of occurrences of the DTC
- Number of ignition cycles since last occurrence
- Was EBCM in an ABS mode when the DTC occurred
- Composite vehicle speed (3 speed sensor inputs, averaged) when the DTC occurred
- Was vehicle in an 4WD when the DTC occurred
- Brake switch status
- Brake Fluid Level Switch