Scheme 1
- TIRE PRESSURE WARNING SYSTEM PRECAUTION When the tire pressure warning lamp comes on, immediately check the air pressure of all tires and adjust to the specified pressure. TIRE PRESSURE WARNING SYSTEM SPECIFICATION Specified Value Front 210 kpa (2.1 kgf/cm 2 , 30 psi) Rear 210 kpa (2.1 kgf/cm 2 , 30 psi) This system requires initializing year changing tires or wheels, or after rotating the tires (see «WHEEL AND TIRE SYSTEM»(/toyota/highlander/i-2003-2007/remont/wheel-tire-system/#tire-wheel) ). Set tire pressure within the specified range before initializing. If the tire air pressure is not within the specified range, the tire pressure warning system will not function. In the following cases, the system may not operate normally. A compact spare tire, snow tires, or tire chains are used. The tire pressure is excessively higher than specified, or tire pressure suddenly drops due to bursting or other causes. The vehicle is driven on a slippery road surface such as rough or frozen roads. The vehicle speed is 19 mph (30 km/h) or less or more than 62 mph (100 km/h), and the driving duration is less than 5 minutes. The tires differ in tread pattern or manufacture. The tires are not the specified size. The tread wear is very different among the installed tires. Rapid acceleration/deceleration or sharp turns is continued. Towing a trailer. The loading is over the limit or imbalance. Initialization was not performed correctly after replacing or rotating tires or wheels. The outside temperature is below 32°F (0°C) or above 104°F(40°C).
- FAIL-SAFE FUNCTION When a system malfunction occurs in the tire pressure warning system, the tire pressure warning lamp blinks. The result of this diagnosis is stored in the skid control ECU.
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Scheme 4: SYSTEM DESCRIPTION
- TIRE PRESSURE WARNING SYSTEM DESCRIPTION The tire pressure warning system informs the driver if it detects a low tire pressure. When the tire pressure warning system detects low tire pressure in any of the 4 wheels, which affects safe driving the tire pressure warning lamp comes on. TIRE PRESSURE WARNING SYSTEM DESCRIPTION Specified Value Front 210 kpa (2.1 kgf/cm 2 , 30 psi) Rear 210 kpa (2.1 kgf/cm 2 , 30 psi) Tire pressure warning system is controlled by the skid control ECU. HINT: When the tire pressure reset switch is push, the tire pressure warning lamp goes off.
- TIRE PRESSURE WARNING DISPLAY FUNCTION The tire pressure warning lamp comes on, according to the condition of the tire pressure warning system, as shown in the DIAGNOSIS SYSTEM (see «DIAGNOSIS SYSTEM»(ref-226382-S12668294672006032700000) ).
