( TL19E00K80100000000BBAT00 )

How to Troubleshoot the VSA System

System Indicator
This system has four indicators and one warning:

- ABS indicator (A)
- Brake system indicator (B)
- VSA indicator (C)
- VSA activation indicator (D)
- TSA warning (E)

When the system detects a problem, it will turn the appropriate indicator or warning on. Depending on the failure, the VSA modulator-control unit determines which indicators are turned on.
When the system is OK, each indicator or warning comes on for about 2 seconds after turning the ignition switch to ON (II), then goes off.
ABS Indicator
The ABS indicator comes on when the ABS function is lost. The brakes still work like a conventional system.
Brake System Indicator
The brake system indicator comes on when the EBD function is lost, the parking brake is applied, and/or the brake fluid level is low.
NOTE: If two or more wheel speed sensors fail, the brake system indicator will come on.
VSA Indicator
The VSA indicator comes on when the VSA function is lost.
VSA Activation Indicator
The VSA activation indicator blinks when the VSA function or TSA function are activating. The VSA activation indicator comes on, when the VSA is turned OFF by using the VSA OFF switch, or the VSA function is lost.
TSA Warning
The TSA warning comes on, when the TSA relay has malfunctioned or when VSA function is lost.
ABS, VSA Indicators, and TSA Warning go off
Each indicator or warning will go off after a problem goes away, but the timing which the VSA modulator-control unit turns off the indicators or warning varies between DTCs.

- DTC 61, 62, 84, 158:
  The indicators go off automatically when the system returns to normal.
- DTC 11, 13, 15, 17, 25−27, 31−38, 54, 59, 64−66, 68, 69, 81, 83, 86, 91, 104, 105, 121−124:
  The indicators stay on until the ignition switch is turned to LOCK (0) whether or not the system returns to normal.
- DTC 12, 14, 16, 18, 21−24, 51, 52:
  The indicators stay on until the vehicle is driven after the system returns to normal.