Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
HINT.
- Use the table below to help determine the cause of problem symptoms If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table Check each symptom by checking the suspected areas in the order they are listed Replace parts as necessary
- Inspect the fuses and relays related to this system before inspecting the suspected areas below
Tire Pressure Warning System
PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| Tire pressure warning system does not operate | Tire pressure warning valve and transmitter | TIRE PRESSURE WARNING VALVE |
| Power source circuit | ECU POWER SOURCE CIRCUIT | |
| Tire pressure warning antenna | TIRE PRESSURE WARNING ANTENNA | |
| Combination meter assembly | REMOVAL | |
| Tire pressure warning ECU and receiver | TIRE PRESSURE WARNING ECU | |
| DTC check cannot be done | TC and CG terminal circuit | TC AND CG TERMINAL CIRCUIT |
| Tire pressure warning ECU and receiver | TIRE PRESSURE WARNING ECU | |
| Tire pressure warning light malfunctions (Does not light up) | Power source circuit | ECU POWER SOURCE CIRCUIT |
| Tire pressure warning light circuit | TIRE PRESSURE WARNING LIGHT CIRCUIT | |
| Tire pressure warning ECU and receiver | TIRE PRESSURE WARNING ECU | |
| Tire pressure warning light malfunctions (Remains on) | Tire pressure check | TIRE PRESSURE WARNING SYSTEM |
| Tire pressure warning ECU and receiver connector poorly connected | - | |
| Tire pressure warning light circuit | TIRE PRESSURE WARNING LIGHT CIRCUIT | |
| Tire pressure warning ECU and receiver | TIRE PRESSURE WARNING ECU | |
| Tire pressure warning light malfunctions (Blinking) | Check DTC | DTC CHECK/CLEAR |
| TC and CG terminal circuit | TC AND CG TERMINAL CIRCUIT | |
| Test mode (SIGNAL CHECK) | TEST MODE PROCEDURE | |
| Tire pressure warning ECU and receiver | TIRE PRESSURE WARNING ECU | |
| Initialization cannot be done | Tire pressure warning reset switch circuit | TIRE PRESSURE WARNING RESET SWITCH |
| Tire pressure warning ECU and receiver | TIRE PRESSURE WARNING ECU | |
| Cannot be switched between "MAIN" and "2nd" | Tire pressure warning select switch circuit | TIRE PRESSURE WARNING RESET SWITCH |
| Tire pressure warning ECU and receiver | TIRE PRESSURE WARNING ECU |