TIRE PRESSURE WARNING SYSTEM Tire Pressure Warning Light Circuit

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DESCRIPTION

If the tire pressure warning ECU and receiver detects any problems, the tire pressure warning light blinks for 1 minute then illuminates, and tire pressure monitoring is disabled at the same time. At this time, the ECU stores a DTC in memory.

Connecting terminals TC and CG of the DLC3 makes the tire pressure warning light blink to output DTCs.

The tire pressure warning ECU and receiver sends the tire pressure warning light illumination request signal to the main body ECU (multiplex network body ECU) via a direct line. The main body ECU (multiplex network body ECU) then sends the signal to the combination meter assembly via CAN communication.

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CAUTION / NOTICE / HINT

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PROCEDURE

1. Click here

   CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

   
   

   1. Check if CAN communication system DTCs are output.

      Click here

      Result
      Result Proceed to DTCs are not output. A DTCs are output. B

   
   
   • AClick here
   • B

     GO TO CAN COMMUNICATION SYSTEMClick here

2. Click here

   CHECK DTC OUTPUT (B1247)

   
   

   1. Clear the DTCs.

      Click here

      
      
      1. Body Electrical > Main Body > Clear DTCs
      2. 
         
      3. 
         

   2. Turn the power switch off.

   3. Turn the power switch on (IG).

   4. Check for DTCs.

      Click here

      
      
      1. Body Electrical > Main Body > Trouble Codes
      2. 
         
      3. 
         

      OK
      DTC B1247 is not output.

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     GO TO DTC (B1247)Click here

3. Click here

   CHECK OPERATION OF TIRE PRESSURE WARNING LIGHT (ACTIVE TEST)

   
   

   1. Turn the power switch off.

   2. Connect the GTS to the DLC3.

   3. Turn the power switch on (IG).

   4. Turn the GTS on.

   5. Enter the following menus: Body Electrical / Combination Meter / Active Test.

   6. Check the condition of the tire pressure warning light using the GTS.

      except Sport Package:

      
      
      1. Body Electrical > Combination Meter > Active Test

         Tester Display	Measurement Item	Control Range	Diagnostic Note
         Multi Display Default Screen	Multi-information display (Default screen)	ON	-

      2. 
         
         10. 
             
      
      
      1. Body Electrical > Combination Meter > Active Test

         Tester Display
         Multi Display Default Screen

      2. 
         
         1. 
            
      3. 
         
         11. 
             

      for Sport Package:

      
      
      1. Body Electrical > Combination Meter > Active Test

         Tester Display	Measurement Item	Control Range	Diagnostic Note
         Tire Pressure Warning System Indicator	Tire pressure warning light	OFF or ON	-

      2. 
         
         10. 
             
      
      
      1. Body Electrical > Combination Meter > Active Test

         Tester Display
         Tire Pressure Warning System Indicator

      2. 
         
         1. 
            
      3. 
         
         11. 
             

      OK
      except Sport Package:
      The multi-information display turns ON or OFF in accordance with the GTS operation.
      for Sport Package:
      The tire pressure warning light turns on or off in accordance with the GTS operation.

      Result
      Proceed to OK NG

   
   
   • OK

     REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER except RHD and w/ Light Auto Turn-off System (w/ Delay Function):

     REPLACE TIRE PRESSURE WARNING ECU AND RECEIVERClick here

     REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER for RHD and w/ Light Auto Turn-off System (w/ Delay Function):

     REPLACE TIRE PRESSURE WARNING ECU AND RECEIVERClick here

   • NG

     GO TO METER / GAUGE SYSTEMClick here