Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM0000018TG001X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: PROBLEM SYMPTOMS TABLE; 2007 MY LX470 [08/2006 -        ]

PROBLEM SYMPTOMS TABLE

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 and proceed to the relevant troubleshooting page.

Variable Gear Ratio Steering System

Symptom

Suspected area

See page

Steering wheel off-center

1. Steering wheel off-center

2007 MY LX470 [08/2006 -        ]; STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: Steering Wheel is Off-center or Deviates from Neutral Position

VGRS stops and does not operate

1. Actuator temperature above -30°C (-22°F)

2007 MY LX470 [08/2006 -        ]; STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: VGRS System Stops or does not Operate

2. IG power source circuit

2007 MY LX470 [08/2006 -        ]; STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: C1551/51; IG Power Supply Voltage Malfunction

3. Skid control ECU

2007 MY LX470 [08/2006 -        ]; BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: TERMINALS OF ECU

4. IG, PIG power supply system

2007 MY LX470 [08/2006 -        ]; STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: C1552/52; PIG Power Source Circuit

5. Power steering system

2007 MY LX470 [08/2006 -        ]; POWER STEERING: POWER STEERING SYSTEM: PROBLEM SYMPTOMS TABLE

6. Only when 1. to 5. are all normal and the problem is still occurring, replace the VGRS ECU

2007 MY LX470 [08/2006 -        ]; STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: VGRS System Stops or does not Operate

Steering angle is different from right to left

1. Check by following operation

2007 MY LX470 [08/2006 -        ]; STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: Steering Angle Differs between Left and Right

Abnormal noise and vibration is produced in the steering wheel

1. VGRS actuator

2007 MY LX470 [08/2006 -        ]; STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: Steering Wheel Vibrates or Abnormal Noise is Heard from Steering Wheel

VGRS warning light abnormal

1. VGRS warning light circuit

2007 MY LX470 [08/2006 -        ]; STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: VGRS Warning Light Circuit

2. TC and CG terminal circuit

2007 MY LX470 [08/2006 -        ]; STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: TC and CG Terminal Circuit

3. VGRS ECU

2007 MY LX470 [08/2006 -        ]; STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: TERMINALS OF ECU