B2747

Circuit Description
The traction control switch is a momentary switch. The signal circuit of the traction control switch is grounded when the driver presses the traction control switch. The traction control system will change state from traction on to traction off or from traction off to traction on each time the traction control switch is pressed.

Conditions for Running the DTC
^ The battery voltage is between 9.0 volts and 16.0 volts.
^ The park brake is not applied.

Conditions for Setting the DTC
^ The signal circuit voltage of the traction control switch is no more than 2.0 volts.
^ All of the above conditions are present for greater than 60 seconds.

Action Taken When the DTC Sets
^ The BCM stores DTC B2747 in memory.
^ The traction control switch input is ignored until the fault is no longer current.

Conditions for Clearing the DTC
^ A current DTC B2747 will clear if the BCM no longer detects a short to ground for longer than 60 seconds.
^ A history DTC B2747 will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
^ A scan tool may be used to clear the DTC.

Diagnostic Aids
Check for a traction control switch that may be sticking in the pressed position. For an intermittent condition refer to Testing for Intermittent and Poor Connections.

Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
2. This step verifies that the fault is present.
3. This step tests for a shorted switch.