Problem Symptoms Table
WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
If a normal code is displayed during the DTC check but the problem still occurs, check the circuits for each problem symptom in the order given in the table below.
NOTE:
When replacing the skid control ECU, sensor or etc., turn the ignition switch OFF.
PROBLEM SYMPTOMS TABLE - ABS, VSC AND BRAKE ASSIST SYSTEMS
| Symptom | Suspect Area |
|---|---|
| ABS does not operate BA does not operate EBD does not operate |
If the symptoms still occur even after the following circuits in suspect areas are inspected and proved to be normal, replace the skid control ECU.
If abnormal, check the hydraulic circuit for leakage. |
| ABS does not operate efficiently BA does not operate efficiently EBD does not operate efficiently |
If the symptoms still occur even after the following circuits in suspect areas are inspected and proved to be normal, replace the skid control ECU.
If abnormal, check the hydraulic circuit for leakage. |
| ABS warning light abnormal |
|
| DTC of ABS check cannot be done | If the symptoms still occur even after the following circuits in suspect areas are inspected and proved to be normal, replace the skid control ECU.
|
| Sensor signal check cannot be done |
|
| VSC does not operate TRAC does not operate |
If the symptoms still occur even after the following circuits in suspect areas are inspected and proved to be normal, replace the skid control ECU.
|
| SLIP indicator light abnormal |
|
| TRAC OFF indicator abnormal | If the symptoms still occur even after the following circuits in suspect areas are inspected and proved to be normal, replace the skid control ECU.
|
| DTC of VSC check cannot be done | If the symptoms still occur even after the following circuits in suspect areas are inspected and proved to be normal, replace the skid control ECU.
|
| VSC warning light abnormal | If the symptoms still occur even after the following circuits in suspect areas are inspected and proved to be normal, replace the skid control ECU.
|