Tests AD: The Traction Control Reconfigurable Telltale Indicator Is Never/Always On

PINPOINT TEST AD: THE TRACTION CONTROL RECONFIGURABLE TELLTALE INDICATOR IS NEVER/ALWAYS ON

AD1-AD2:

AD3-AD4:

Normal Operation
The traction control reconfigurable telltale indicator flashes when the vehicle traction control is in active mode or is being controlled by the anti-lock brake system (ABS) module. The instrument cluster receives the traction control data from the ABS module over the high speed controller area network (HS-CAN) communication bus. The instrument cluster monitors the traction control message and when the ABS module detects a traction control concern, the instrument cluster illuminates the traction control reconfigurable telltale indicator. If the traction control message is missing for greater than 5 seconds, the instrument cluster sets DTC U0121 and defaults the traction control reconfigurable telltale indicator on.

Possible Causes
- ABS module
- Instrument cluster