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Low Tire Pressure Warning Light
 
 
DESIGN/PURPOSE
  • When tire pressure is low, TPMS (Tire Pressure Monitoring System) turns low tire pressure warning light ON to warn the driver.
  • When the TPMS detects the system malfunction, the system blinks (1 minute) → turns ON low tire pressure warning light.
Details for TPMS (Tire Pressure Monitoring System), refer to System Description.
 
 
BULB CHECK
Turns ON for 1second, then turns OFF.
 
 
SYNCHRONIZATION WITH MASTER WARNING
Applicable
For master warning, refer to Master Warning LightMaster Warning Lamp.
 
 
OPERATION AT COMBINATION METER CAN COMMUNICATION CUT-OFF OR UNUSUAL SIGNAL
For the operation for CAN communication blackout in the combination meter, refer to Fail-Safe.
 
 
SYSTEM DIAGRAM
 
 
SIGNAL PATH
  • BCM receives a signal transmitted from the tire pressure sensors/transmitters installed in each wheel.
  • If BCM detects following condition, it sends the signal to the combination meter via CAN communication.
    • Tire pressure is low
    • System malfunction is detected
  • Combination meter turns the low tire pressure warning light ON according to the signal. In addition, warning message will be displayed in the vehicle information display.
 
 
LIGHTING CONDITION
When any of the following conditions is satisfied:
  • Tire pressure is low.
  • System malfunction is detected.
  • CAN communication line malfunction is detected.
For DTC, refer to DTC IndexDTC Index.
 
 
SHUTOFF CONDITION
When any of the following conditions is satisfied:
  • Ignition switch is not in ON position.
  • All tire pressures are normal.
  • System malfunction is not detected.
 
 
TIMING CHART