My local mechanic tells me my 2005 Saab 9-3 Arc is throwing a P2135 DTC, which means either the acclerator pedal position sensor or the throttle plate position sensor is kaput. Most of what I garner from various forums is that P2135 points more to the TB than the pedal. Can you enlighten me?Thanking you.
Year: 2005Make: Saab
Trusting non-Saab technicians.
I go with his diagnostics at this point if he looked at the data.
P2135 00 Throttle Position Sensor Circuit, Plausibility Fault between Circuit 1 and 2
On-board diagnosis Type of diagnosis:
System reaction to a fault:
Fault handling: Type III(See section Fault handling III, "Other emission-related components and functions" for more information.)Checking the wiring harness
Diagnostic help Diagnosis regards:
Functions in the diagnostic tool related to the fault:
Perhaps I did not ask my question correctly.
The mechanic tells me it could be the accelerator pedal assembly, for which he wants about $100 to remove, inspect, clean and reinstall...OR...the throttle body with integral plate position sensor, for which he wants me to get rid of the car, stating that even dealers cannnot obtain this part anymore (two Saab dealers, one in Maryland and one in Delaware, will not give me a straight answer). Does P2135 point specifically to one or the other?
Thanking you again.
Ok, I did not interperet it correct either, if he has not done the inspection or testing I would point more to the ETB, or wiring to the TP sensors, thats where the discrepancy is.... between the sensors. If it turns out to be the ETB, there are plenty of used units out there. Go to Car-Part.com and do some shopping, you can look local or regionally, they have the largest locater for used parts. I have included a couple of screen captures for you as well.
30 years dealership experience
Thank you for exemplary service.
You are welcome ...thanks !