Lexus ES: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
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.
| Symptom | Suspected Area | Link |
|---|---|---|
| Tire pressure warning light does not illuminate despite tire pressure decreasing | Initialization | |
| Check Data List (ID Tire Inflation Pressure) | | |
| ID code check (Registration) | | |
| Tire pressure warning light remains illuminated (Goes off during initial check) | Tire pressure warning light circuit | |
| Tire pressure warning light remains illuminated (Illuminates during initial check) | Check Data List (ID Tire Inflation Pressure) | |
| Tire pressure adjustment | | |
| ID code check (Registration) | | |
| Initialization | | |
| Initialization cannot be done | Tire pressure warning reset switch | |
| Tire position not identified | Refer to "Tire position not identified". | |
| Cannot switch to automatic ID registration mode | Refer to "Cannot switch to automatic ID registration mode". | |
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Terminals Of Ecu
TERMINALS OF ECU CHECK TIRE PRESSURE WARNING ECU AND RECEIVER (a) Disconnect the N8 tire pressure warning ECU and receiver connector and measure the voltage or resistance on the wire harness side.
Diagnosis System
DIAGNOSIS SYSTEM CHECK WARNING LIGHT NOTICE:
When there is a problem with the tire pressure warning system, the tire pressure warning light blinks at 0.5 second intervals, and illuminates after 1 m
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (for TIRE PRESSURE WARNING ECU AND RECEIVER) (a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG). (d) Turn the Techstre
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Installation
INSTALLATION PROCEDURE 1. INSTALL CAMSHAFT TIMING GEAR BOLT (a) Make sure that the No. 1 cylinder is at TDC/compression. HINT: Check that the cutout of the camshaft timing gear assembly is at the top and align the timing mark (cutout) of the crankshaft pulley with the timing mark on the timing chain
Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the terminal is reconnected. System Name See Procedure Lane Control System
