VSA System Symptom Troubleshooting Index

When the vehicle has one of these symptoms, check for VSA diagnostic trouble codes (DTCs) with the HDS. If there are no DTCs, do the diagnostic procedure for the symptom, in the sequence listed, until you find the cause.

Symptom	Diagnostic procedure	Also check for
HDS does not communicate with the VSA modulator-control unit or the vehicle	Troubleshoot the DLC circuit .	Power and ground at the VSA modulator-control unit.
ABS indicator, brake system indicator (red), VSA indicator, brake system indicator (amber), or VSA OFF indicator does not come on at start-up (bulb check)	Do the gauge control module self-diagnostic function . If symptom is still present, replace the VSA modulator-control unit .
VSA cannot be turned OFF	Symptom troubleshooting - Refer to: VSA System Symptom Troubleshooting - VSA cannot be turned OFF . If symptom is still present, replace the VSA modulator-control unit . If the low tire pressure/TPMS light is ON and the VSA cannot be turned OFF. Check tire pressure.
VSA OFF indicator does not go off	Do the VSA sensor neutral position memorization . Do the gauge control module self-diagnostic function .
ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off	Check for F-CAN DTCs, and troubleshoot and repair those first . Symptom troubleshooting - Refer to: VSA System Symptom Troubleshooting - ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off .