Low Tire Pressure Warning Lamp Does Not Turn On
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.
- Activate and display TPMS transmitter IDs
- Display tire pressure reported by the TPMS transmitter
- Read TPMS DTCs
- Register TPMS transmitter IDs
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Using SDT, check display contents of BCM in "DTC check". Is CAN COMM CIRCUIT displayed in "DTC check" display items? |
Malfunction in CAN communication system. | GO TO 2 |
| 2 | CHECK COMBINATION METER Check combination meter operation. Refer to [SDT FUNCTION (METER / M&A) ] Inspection results OK? |
GO TO 3 | Replace combination meter. Refer to [COMBINATION METER: REMOVAL AND INSTALLATION ] |
| 3 | CHECK LOW TIRE PRESSURE WARNING LAMP Disconnect BCM harness connector. Does the low tire pressure warning lamp activate? |
Replace BCM. Refer to [BCM (BODY CONTROL MODULE): REMOVAL AND INSTALLATION ] | Check combination meter operation. |