Tire Pressure Warning Light Circuit

Tire Pressure Warning Light Circuit

DESCRIPTION
If the tire pressure warning ECU detects a disconnected connector or an open circuit between the tire pressure warning ECU and combination meter, the tire pressure warning light turns off 10 seconds after the ignition switch is turned ON, blinks for 1 minute, and then remains on. Connecting terminals TC and CG of the DLC3 makes the tire pressure warning light blink and output the DTC.

WIRING DIAGRAM:

INSPECTION PROCEDURE

NOTICE:
- When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using the intelligent tester or Techstream and write them down before removal.
- It is necessary to perform initialization after registration of the transmitter IDs into the tire pressure warning ECU after the ECU has been replaced.

Step 1:

Step 1-2: