Tire Pressure Warning Light Circuit [06/2018 - ]: Procedure

1. Check if CAN communication system DTCs are output.

   Refer to DIAGNOSIS SYSTEM [06/2018 - 10/2019] , or refer to DIAGNOSIS SYSTEM [10/2019 - 08/2020] , or refer to DIAGNOSIS SYSTEM [08/2020 - 08/2021] , or refer to DIAGNOSIS SYSTEM [08/2021 - 09/2022] , or refer to DIAGNOSIS SYSTEM [09/2022 - ]

   Result

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

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

Result: 

A 

See step  2

1. Clear the DTCs.

   Chassis > Tire Pressure Monitor > Clear DTCs 

2. Turn the engine switch off.
3. Turn the engine switch on (IG).
4. Check for DTCs.

   Chassis > Tire Pressure Monitor > Trouble Codes 

   Result

   Result	Proceed to
   B1247 is not output	A
   B1247 is output	B

Result: 

B 

GO TO DTC (B1247). Refer to  DTC B1247: Tire Pressure Monitor Receiver Communication Stop [06/2018 - ]  

Result: 

A 

See step  3

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: Body Electrical / Combination Meter / Active Test.
6. Check the condition of the tire pressure warning light using the Techstream.

   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	-

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   Tire Pressure Warning System Indicator

   OK

   The tire pressure warning light turns on or off in accordance with the Techstream operation.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER. Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

Result: 

NG 

GO TO METER / GAUGE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]