Top 10 1999 Lexus RX 300 Questions & Answers

facing engine bank1 sensor 1 should be the one at the firewall area in the manifold

Remove 3 - 4 screws on fender cover close to side marker light. Pull fender cover out a bit for you to use your other hand to reach side marker light. By twisting on one direction and here you go the light out. Replace new bulb and replace everything in reverse order.

After having my oil changed, the next day the trac off light and vsc light came on and don't go off...can you tell me how to get them off? HELP

35 psi is the assigned "maximum load" pressure for standard load tires and 41 psi is the assigned "maximum load" pressure for extra load tires.

Here you go:

coolant temp sensor is located on the bootom backside of the radiator. you will have to remove the front under cover to access it.

Check the brake light failure sensor module, this is located in the left rear trim panel by the fuel door. Remove the trim and follow the harness up towards the roof of the vehicle to locate the light failure sensor. The color of the light failure sensor may be gray with a blue back:
1.Check the stop light fuse for battery voltage at all times.
2. At lamp failure module, check to see if there is battery voltage on the Green/White wire with the brake pedal pushed.
3. Check to see if there is battery voltage to the Green/Red wire with the brake pedal pushed.
4. Bypass the lamp failure module by jumping the Green/White to the Green/Red. Check the light operation. All lights should be illuminated similarly. All bulbs should be of the same make and model.
5. Check the grounds for the brake light bulbs and the lamp failure module.

First make sure all the bulbe are the right number. The smallest difference can turn that light on. If not here is the test:
1. Monitor the voltage supply to the brake lamp failure module on the Green/White wire.
2. At the tail lamp failure module, voltage drop the Green/Red wire between the module and the brake lamps.
3. Check to make sure that the bulbs are the same brand and voltage drop across both bulbs. Make sure that the voltage drop across the bulbs is the same.
4. Voltage drop the grounds on each bulb circuit.

If you have replaced the control module and all tail and brake lamps are operating and matching then you now need to replace the highmount third brake lamp bulb that is at the top of your rear door. The monitor is VERY sensitive and the slightest problem with this bulb causes taillamp warning indicators to come on even if this bulb is operating.

90% of the time when I deal with a tail lamp warning indicator on a first generation RX and all tail lamps work then replacing this bulb resolves the issue.

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p1133 code

A knock sensor code has nothing to do with OD engagement, most likely the OD solenoid is sticking or the OD is magnetic clutch is defective inside the transmission torque converter, any Trans shop will road test and give u a preliminary diagnosis for free, suggest you do that.

For 2000 Lexus RX300 3.0 liter DOHC V-6 (1MZ-FE) check this diagra...




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