The EBTCM contains sophisticated on-board diagnostics
that can detect and often isolate system malfunctions. When a malfunction
is detected, the EBTCM sets a Diagnostic Trouble Code (DTC). There are 60
diagnostic trouble codes that assist with diagnostics. The DTC represents
the malfunction, turns on the ABS and/or ETS/TRAC off indicators (in almost
all instances if equipped), and may disable the ABS/ETS functions. The EBTCM
can also diagnose whether the malfunction is intermittent.
The following actions occur when using the Scan Tool with the ABS/ETS:
| • | The Scan Tool specifically identifies the last DTC. |
| • | The specific ABS or ETS data stores at the time of the malfunction. |
| • | Information about the first three DTCs set and the last DTC set
becomes available. |
| • | The input and output can be monitored. |
| • | Malfunction confirmation and repair verification are enabled. |
| • | The manual control of components and the automated functional
tests become available. |
