Problem Symptoms Table
HINT:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
VARIABLE GEAR RATIO STEERING SYSTEM
| Symptom | Suspected area | See |
|---|---|---|
| Steering wheel is off-center | Steering wheel is off-center or deviates from neutral position | Refer to Steering Wheel is Off-center or Deviates from Neutral Position |
| VGRS system stops or does not operate | Only if the following (1 to 4) is all normal and the problem is still occurring, replace the steering control ECU | Refer to REMOVAL |
| 1. Actuator temperature is abnormal | Refer to VGRS System Stops or does not Operate | |
| 2. IG power source circuit | Refer to DTC C15C6/77: IG Power Supply Voltage Malfunction | |
| 3. IG or PIG power supply circuit | Refer to DTC C15C7/78: DC Motor Power Source Voltage Malfunction; DTC C15C8/79: Power Supply Relay Failure | |
| 4. Power steering system (check steering effort) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Steering angle differs between left and right | Steering angle differs between left and right | Refer to Steering Angle Differs between Left and Right |
| Steering wheel vibrates or abnormal noise is heard from steering wheel | Steering wheel vibrates or abnormal noise is heard from steering wheel | Refer to Steering Wheel Vibrates or Abnormal Noise is Heard from Steering Wheel |
| Master warning light (VGRS) malfunction | Master warning light circuit | Refer to Master Warning Light Malfunction |