Question about 2001 Toyota Sienna
I need to so the code p0120
Throttle Position Sensor/Switch (TPS) A Circuit Malfunction
The TPS (Throttle Position Sensor) is a potentiometer that is mounted to the throttle body. It detects the throttle blade angle. As the throttle blade moves, the TPS sends a signal to the PCM (Powertrain Control Module). Usually a three wire sensor: A 5 volt reference from the PCM to the TPS, a ground from the PCM to the TPS, and a signal return from the TPS to the PCM. The TPS sends the throttle position information back to the PCM on this signal wire. When the throttle is closed the signal is near .45 volts. At WOT (Wide Open Throttle) the TPS signal voltage will approach a full 5 volts. When the PCM sees a voltage that is outside of normal operating range, P0120 will set. NOTE: The PCM knows that any large change in throttle position means a cooresponding change in manifold pressure (MAP). On some models the PCM will monitor MAP and TPS operation for comparison. Meaning that if the PCM sees a large percentage change in throttle position, it expects to see a cooresponding change in manifold pressure and vice versa. If it doesn't see this comparitive change, P0120 may set.
Posted on Dec 11, 2014
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 22, 2016 | Kia Cars & Trucks
Mar 25, 2015 | 2001 Nissan Xterra
Sep 07, 2013 | Chevrolet Chevy Cars & Trucks
Apr 02, 2013 | Nissan Frontier Cars & Trucks
Nov 27, 2012 | Cars & Trucks
Oct 05, 2012 | 2001 Pontiac Sunfire
Sep 14, 2012 | 2005 Chevrolet Monte Carlo
Oct 04, 2011 | Cars & Trucks
Jan 31, 2011 | Lexus RX 300 Cars & Trucks
Oct 24, 2010 | 2004 GMC Sierra 1500 Crew Cab
205 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: