| HDS does not communicate with the VSA modulator-control unit or the vehicle |
Troubleshoot the DLC circuit (see DLC CIRCUIT TROUBLESHOOTING
). |
| ABS indicator does not come on |
- Do the gauge control module troubleshooting (see SELF-DIAGNOSTIC FUNCTION
).
- Substitute a known-good VSA modulator-control unit, then recheck. If it is OK, replace the original VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION
).
|
| ABS indicator or VSA indicator does not go off, and no DTCs are stored |
- Symptom troubleshooting (see SYMPTOM TROUBLESHOOTING
).
- Do the gauge control module troubleshooting (see SELF-DIAGNOSTIC FUNCTION
).
|
| Brake system indicator does not come on |
- Do the gauge control module troubleshooting (see SELF-DIAGNOSTIC FUNCTION
).
- Substitute a known-good VSA modulator-control unit, then recheck. If it is OK, replace the original VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION
).
|
| Brake system indicator does not go off, and no DTCs are stored |
- Symptom troubleshooting (see BRAKE SYSTEM INDICATOR DOES NOT GO OFF, AND NO DTCS ARE STORED
).
- Do the gauge control module troubleshooting (see SELF-DIAGNOSTIC FUNCTION
).
|
| VSA indicator does not come on |
- Do the gauge control module troubleshooting (see SELF-DIAGNOSTIC FUNCTION
).
- Substitute a known-good VSA modulator-control unit, then recheck. If it is OK, replace the original VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION
).
|
| VSA activation indicator does not come on at start-up (bulb check) |
- Do the gauge control module troubleshooting (see SELF-DIAGNOSTIC FUNCTION
).
- Substitute a known-good VSA modulator-control unit, then recheck. If it is OK, replace the original VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION
).
|
| VSA activation indicator does not go off, and no DTCs are stored |
- Symptom troubleshooting (see VSA INDICATOR DOES NOT GO OFF, AND NO DTCS ARE STORED ('07-08 MODELS)
).
- Do the gauge control module troubleshooting (see SELF-DIAGNOSTIC FUNCTION
).
- Substitute a known-good VSA modulator-control unit, then recheck. If it is OK, replace the original VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION
).
|
| ABS indicator, brake system indicator, and VSA indicator do not go off at the same time |
- Symptom troubleshooting (see ABS INDICATOR, BRAKE SYSTEM INDICATOR, AND VSA INDICATOR DO NOT GO OFF AT THE SAME TIME
).
- Do the gauge control module troubleshooting (see SELF-DIAGNOSTIC FUNCTION
).
|