SOURCE: 2003 Lexus GS300 P0031 code
Yes the O2 sensor preheater problem will turn on the VSC light, see the complaint often, why? don't know
.P0031 TOYOTA - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 1
In most cases the O2 being replaced cures the code but here is the full story.
Possible causes- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit open shorted to ground
- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit poor electrical connection
- Faulty Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit
- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit fuse
- Faulty Engine Control Module (ECM)
SOURCE: i couldn't find the ALTERNATOR in my car ,my car
Does it still have a warranty on it? If so I would use that while you got it, and get it fixed free of charge. There is probably a cosmetic plastic cover hiding the alternator. However if you locate the belts than it will lead directly to the alternator.
SOURCE: lexus rx400h 2006 - won't start "shift to park to start"
Hey Guys, The problem is that the 12V battery is low or dead. Having the battery replaced will fix this issue. (I have the same vehicle, had the same problem, and this was the fix)
SOURCE: 2004 Lexus GS470 - VCS
Check & replace if necessary the Brake Pedal Position (BPP) switch placed above pedals on the support.
If the problem still occurs you might access the ABS & VCS ECU (Electronic Control Unit) using diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored.
Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC stocked inside ABS ECU & reset it.
The VCS system means the Vehicle Control System, and is the similar system with the ESP = Electronic Stability Program. If the VCS & ABS lights on the dashboard, the VCS system is faulty. You must access the VCS Electronic Control Unit (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: brake pedal switch, front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by VCS ECU, in other words reset the VCS system and turn off the warning lamp on dashboard.
I'm convinced that your brake pedal switch is faulty because the VCS & ABS warning light went ON and brake lights quit working. Just replace the Brake Pedal Position (BPP) switch, see if rear stop lamps light when press the brake pedal, and test the car on the road.
Good Luck!
1,181 views
Usually answered in minutes!
×