Speed Sensor Problem? P1529, P0501, p0500

[CptnNemo]

My girlfriend has a 2002 Hyundai Elentra that recently failed the MA saftey inspection. From the OBD there were three error codes, p1529, p0501, and p0500. According to the obd-codes.com, two of the codes are as follows: "P0500 Vehicle Speed Sensor Malfunction, P0501 Vehicle Speed Sensor Range/Performance." AS for p1529, I've heard everything from "that's the code that tells the computer to turn the check engine light on" to "that's a code from the TCU telling the ECU to put the transmission into safe mode". Which one is it? Do I need to check the transmission computer as well? And clear those codes?

Does anyone know the location of the speed sensor? Has anyone replaced it before? Any help or advice would be great!

[Jed118]

Wow you can fail an inspection just for that? OMG Ontario laws are pretty lax then...

In any case, yes, replace that sensor. It's on the transmission side, the upper left side towards the rear of the transmission. You could probably steal one from a wreckers if you're good...

[busy_squirrel]

My trouble code book says:

Powertrain Control System:
2001-2003 Elantra
P1529 - TUC Request for MIL on/Freeze To ECM Via CAN
P0501 - VSS

But it doesn't show any P0500 code for an '02 Elantra.
1996-2000 Scoupe - P0500 - VSS Circuit
2001-2003 Sante Fe & Sonata - P0500 - VSS Fault (2.4L or 2.5L)
2001-2003 XG300 & XG350 - P0500 - VSS

[cclngthr]

Originally posted by busy_squirrel
[body]
My trouble code book says:

Powertrain Control System:
2001-2003 Elantra
P1529 - TUC Request for MIL on/Freeze To ECM Via CAN
P0501 - VSS

But it doesn't show any P0500 code for an '02 Elantra.
1996-2000 Scoupe - P0500 - VSS Circuit
2001-2003 Sante Fe & Sonata - P0500 - VSS Fault (2.4L or 2.5L)
2001-2003 XG300 & XG350 - P0500 - VSS
[/body]

What the codes mean is the car now is in a fail safe mode where the RPM does not go over a certain point, as the VSS is not sending data to the ECU. Since this is on a CAN line, the ONLY way to erase it is have the appropriate scan tool to be able to erase a CAN line system code.

The CAN ine is between the VSS, transmission TCM, ECM and ECU. The only true way is to have a dealer scan the ECU and erase the codes with the scan tool once the VSS is replaced and wiring harness checked.

[TAK82]

P0501..i had that code on my car and the cause was a snapped speedometer cable.
Now i don't know if your elantra's speedo is electric or cable but the cable need's to be replaced of that code come's up..

also, when you're drivng can you hear the rev's dropping excessivly when the tranny shift's gears?

[CptnNemo]

Can anyone take a picture of this to help me locate it? Has anyone replaced it before and if so, can they describe the process? or give me some tips?

[ryanolson]

Originally posted by TAK82
[body]
P0501..i had that code on my car and the cause was a snapped speedometer cable.
Now i don't know if your elantra's speedo is electric or cable but the cable need's to be replaced of that code come's up..

also, when you're drivng can you hear the rev's dropping excessivly when the tranny shift's gears?

[/body]

...1.6 accents have electric speed sensors....