20 Most Recent 2003 Toyota Highlander - Page 7 Questions & Answers

Many times the dealer gives you a valet key made to give to the vet to park your car, these keys work even though the theft deterant system is active, but they will only work for short periods untill the theft system activates and imobolizes the vehicle. The system is reset when the valet brings your vehicle and you insert your normal (chiped) key.

you have to get on from the dealer

Look for a vacuum leak at the intake

See solution for '03 Highlander.

Assume it's an automatic transmission,eh?The transmission filter is clogged up. Simple.Have tranny serviced and filter replaced. Good to go. 2003? It may be toast.100,000 miles?More?Never serviced?

The code 1055 is brand specific, and for Toyota it means there is a problem with the heater circuit for the O2 sensor bank 2 sensor 1. That is the sensor in front of the catalytic converter or split and on the side with cylinder number 2 which may be the passenger side.The sensor could have failed, or it could be a problem with the power source for the heater inside the sensor.

problem could be in door central locking system or body ecm.let dealership check it out.

find #1 cylinder that side is bank 1, bank 2 is opposite. sensor 1 is closest to manifold.

Dear Brendahall,I recommend to ask an expert to do it for you as there is a risk on your attempt to brake or crack the console.

That's a code for the heater circuit for the bank 1 sensor 1 O2 sensor. Bank one is always the same side of the engine as the number 1 cylinder (V-6 engines). Sensor 1 is always before the catalytic converter. I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa