Car is a 2005 XJ8L. While driving at very low speeds (less than 10 mph), these dashboard warnings come up:
- DSC Not Available
- Parkbrake Fault
- Engine System Fault

The car spontaneously goes into Restricted Performance mode. Shutting off the engine briefly and restarting clears the warnings and the car runs fine - until those fault warnings reappear a short time later.

I scanned for trouble codes. The most relevant stored code was P2135. My research indicates these three warnings are often caused by a Throttle Position Sensor problem.

I have a Denso 198500-3300 TPS on order. My question is about its installation. Are there sensor output voltage and/or resistance values that should be checked and set (by rotating the TPS during installation), e.g. at closed throttle, idle, and full throttle positions?

I want to check the existing sensor as well as the new sensor prior to installing it. I’ve searched factory service manuals but couldn’t find that exact data.

Thanks in advance for any help you might provide!