Hi,
I've had an issue with my speedo not working for a while. I've spent a $500 at 2 different auto electricians who couldn't diagnose the problem. Hopefully here can help. I have a 2002 prado 95 3.4l auto petrol with the active traction control.
The fault code is Po500 obd2 complaint. Vehicle speed sensor circuit. No speedo working, handbrake light always on, abs and traction control light with all 4 wheels lit up suggesting that the abs and trc are disabled all the time.
The OD light flashes and engine warning light comes on after starting to drive.
This car doesnt have the VSS on the transfer case like other models and we assume the speed is picked up through the abs wheel speed sensors. Nobody can find the fault. All the abs sensors have been tested and are producing voltage with all the same resistance.
All the wiring diagrams suggest it has a VSS attached to the transfer case and we cannot find the correct wiring diagrams for this model.
Does anybody have the correct wiring diagrams or can suggest if there is a speedo sensor attached to a part of the car we cannot find. I'm out of options now as 2 recommended auto electricians are stumped too so maybe someone here can help!?
We are about to drive to the cape and are on dual fuel so I would love to fix this problem asap to help with our fuel management.
Thanks
I've had an issue with my speedo not working for a while. I've spent a $500 at 2 different auto electricians who couldn't diagnose the problem. Hopefully here can help. I have a 2002 prado 95 3.4l auto petrol with the active traction control.
The fault code is Po500 obd2 complaint. Vehicle speed sensor circuit. No speedo working, handbrake light always on, abs and traction control light with all 4 wheels lit up suggesting that the abs and trc are disabled all the time.
The OD light flashes and engine warning light comes on after starting to drive.
This car doesnt have the VSS on the transfer case like other models and we assume the speed is picked up through the abs wheel speed sensors. Nobody can find the fault. All the abs sensors have been tested and are producing voltage with all the same resistance.
All the wiring diagrams suggest it has a VSS attached to the transfer case and we cannot find the correct wiring diagrams for this model.
Does anybody have the correct wiring diagrams or can suggest if there is a speedo sensor attached to a part of the car we cannot find. I'm out of options now as 2 recommended auto electricians are stumped too so maybe someone here can help!?
We are about to drive to the cape and are on dual fuel so I would love to fix this problem asap to help with our fuel management.
Thanks
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