Pinpoint Tests AC: The Traction Assist Message Center Indicator Is Never/Always On
Instrumentation, Message Center and Warning Chimes
Pinpoint Test AC: The Traction Assist Message Center Indicator Is Never/Always On
Normal Operation
The Instrument Cluster (IC) receives the traction control data from the ABS module over the High Speed Controller Area Network (HS-CAN) communication bus. The traction control message center indicator flashes when the vehicle traction control is in active mode or is being controlled by the ABS module. The IC monitors the traction control message and when the ABS module detects a traction control concern, the IC illuminates the traction control message center indicator.
If the traction control message is missing for less than 5 seconds, the IC defaults the traction control indicator to the last on/off state, based upon the last known good traction control status message received.
If the traction control message is missing for more than 5 seconds, the IC sets DTC U0121 in continuous memory and defaults the traction assist indicator on.
This pinpoint test is intended to diagnose the following:
- Traction control concern
PINPOINT TEST AC: THE TRACTION ASSIST MESSAGE CENTER INDICATOR IS NEVER/ALWAYS ON
