Help Please Fault Code Po500 Vehicle Speed Sensor Malfunction

[Shaz5411]

My toyota avensis d4d 2001 went into limb mode, had it scanned the following fault code came up po500 so had it reset and the code never came back on again, but my car still in limb mode it feels has thou something his blocking the turbo from kicking in does not matter how hard u press the pedal the car will not move, any ideas anyone thanks!

[Wiz201]

I presume the engine management light is coming on when the engine goes into 'limp home' mode? There must be something wrong if its doing that, its the ecu putting a limit on so it doesn't get any further damage.

[Shaz5411]

Thanks for the reply, there no engine management light on and no codes coming up anymore, when am driving it feels as thou something blocking the turbo from kicking inn I have had the car serviced including fuel filter change, but no luck!

[Raistlin]

It basically works like this:

The vehicle equipped with ABS detects a vehicle speed using the stability control ECU and wheel speed sensor. This sensor monitors a wheel rotation speed and sends the signal to the ECU.

The stability control ECU converts these wheel speed signals into a 4-pulse signal and outputs it to the ECM via the combination meter.

The ECM determines the vehicle speed based on the frequency of these pulse signals.

The ECM monitors the vehicle speed signal from the combination meter while the vehicle is running. If there is no signal from the combination meter even though the vehicle is driven, the ECM interprets this as a malfunction in the vehicle speed sensor circuit and sets a DTC.

[Shaz5411]

Thanks for the good reply, so basically do I need to buy a vehicle speed sensor then!

[Raistlin]

You could try that first before giving it to Mr T