VGRS System Stops or does not Operate: Procedure

1. Check for DTCs in the dynamic rear steering system. Refer to DTC CHECK / CLEAR [12/2011 - ] .
   RESULT
   
   

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

B → See step   10 

A: Go to next step 

1. Check for DTCs. Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2011 - ] .
   RESULT
   
   

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

B → See step   12 

A: Go to next step 

1. Turn the engine switch off.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG).
4. Turn the Techstream on.
5. Enter the following menus: Chassis / VGRS / Data List / Abnormal Operation History.
6. According to the display on the Techstream, read the Abnormal Operation History.
   VGRS
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Limited Control Count(Overheat-Weak)	Limited control count (overheat-weak)/ Min.: 0 Max.: 255	-	The number of times which shows that overheat status of VGRS became "Overheat-Weak" and then the control was limited.
   Limited Control Count(Overheat-Mid)	Limited control count (overheat-mid)/ Min.: 0 Max.: 255	-	The number of times which shows that overheat status of VGRS became "Overheat-Mid" and then the control was limited.
   Limited Control Count(Overheat-Strong)	Limited control count (overheat-strong)/ Min.: 0 Max.: 255	-	The number of times which shows that overheat status of VGRS became "Overheat-Strong" and then the control was limited.
   N Pos Stop Control Count	N pos stop control count/ Min.: 0 Max.: 255	-	The number of times which shows that power supply status to VGRS became "N Pos Stop" and then the control in "N Pos Stop" happened.
   Cur Pos Stop Control Count	Cur pos stop control count/ Min.: 0 Max.: 255	-	The number of times which shows that power supply status to VGRS became "Cur Pos Stop" and then the control in "Cur Pos Stop" happened.
   Prompt Stop Control Count	Prompt stop control count/ Min.: 0 Max.: 255	-	The number of times which shows that power supply status to VGRS became "Prompt Stop" and then the control in "Prompt Stop" happened.
   Limited Control Count(System Heavily-loaded)	Limited control count (system heavily-loaded)/ Min.: 0 Max.: 255	-	The number of times which shows that VGRS system became heavily-loaded and then the control was limited.

   RESULT
   
   

   Result	Proceed to
   One of the Data List items has a count of 1 or more.	A
   Other than above	B

   HINT: 

   When there is a decrease or increase in power source voltage, or during overheating prevention, VGRS system operation stops temporarily.

B → See step   9 

A: Go to next step 

1. Check if operation stopped under harsh conditions, such as the steering wheel being repeatedly turned while the vehicle is stationary.
   RESULT
   
   

   Result	Proceed to
   Operation stopped under conditions that are not harsh	A
   Operation stopped under harsh conditions	B

   HINT: 

   When the torque load is large, such as when driving on rough road, VGRS system operation stops to protect the system.

B → See step   7 

A: Go to next step 

1. Check the steering torque when the steering wheel is turned with the vehicle stopped. Refer to ON-VEHICLE INSPECTION [12/2011 - ] .

   OK

   The steering torque is normal.

   HINT: 

   When the steering effort is large, VGRS system operation stops to protect the system.

NG → See step   11 

OK: Go to next step 

1. Check for abnormal noise or vibration in the steering actuator assembly.

   OK

   Neither abnormal noise nor vibration occurs.

B → See step   8 

A: Go to next step 

1. Operate the steering wheel and check that the system recovers.
   RESULT
   
   

   Result	Proceed to
   The system recovers when the steering wheel is operated.	A
   The system recovers when the steering wheel is not operated.	B

B → See step   8 

A → END