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Vehicle Diagnostics
DTC Examples
Several ABS DTC examples are shown below. SRS and Global OBDII
DTCs are presented similarly..
General Motors provides additional information along with the DTCs:
Current - A current DTC indicates that a failure is currently present. A
current code may have just occurred or may have been present over
time.
History - A DTC with a History designation is one that has been
detected by the anti-lock brake control module over a span of time. It
is a current failure that has been present long enough to be stored in
long-term memory.
CURR/HIST - A CURR/HIST DTC indicates that a failure is both cur-
rent and historical as defined above.
Intermittent - An intermittent status indicates that the DTC has
appeared intermittently since the anti-lock brake control module was
reset. (Control modules are reset by mechanics after a repair has
been completed.)
This code indicates that you cur-
rently have a problem with the Left
Front Wheel Speed Sensor Circuit
and that the problem is illuminating
the ABS malfunction indicator
lamp (MIL) on the dashboard.
This code indicates that you have
had a problem with the Pump
Motor Circuit long enough to be
stored in long-term memory and
that the problem is illuminating the
ABS malfunction indicator lamp
(MIL) on the dashboard. ABS sys-
tems rely on a pump to regulate
brake fluid distribution.
C0023
Left Front Wheel
Speed Sensor Circuit
Malfunction
Current
1 of 3
ABS
DTC
Definition
Number of DTCs
Vehicle Control Module
User key active
DTC Status
Scroll Up key
Scroll Down key
C0023
Left Front Wheel
Speed Sensor Circuit
Malfunction
Current
1 of 3
ABS
C0110
Pump Motor Circuit
History MIL Code
2 of 3
ABS
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