how to test gm accelerator pedal position sensor

Operation Procedure
Make sure that the accelerator pedal is fully released.Turn ignition switch “ON” and wait at least 2 seconds.Turn ignition switch “OFF” wait at least 10 seconds.Turn ignition switch “ON” and wait at least 2 seconds.Turn ignition switch “OFF” wait at least 10 seconds.

How do I calibrate my accelerator pedal position sensor?

To recalibrate the ECM and accelerator pedal, the ignition switch must be in the ON position and then the accelerator pedal must be slowly and fully depressed from idle to full throttle. Repeat the procedure three times.

How do you reset a pedal position sensor?

The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module.

What happens if you disconnect throttle position sensor?

What Happens If You Disconnect Throttle Position Sensor? TPS, as we call it, is the most important sensor in a car that is used to ensure gas and temperature doesn’t reach zero. Without it, the system cannot predict what’s happening with gas and temperature.

How do you reset a throttle pedal sensor?

How to Reset Throttle Position Sensor
Put the key in the ignition.Turn the key to the On position, without cranking the engine. Wait a few seconds, then turn it off.Repeat the second step.Crank the engine.Pull the parking brake.Set the gear lever in Drive.Wait 5-10 minutes.

Do you have to reset computer after replacing throttle position sensor?

After replacing the throttle body to your engine, if the engine light was on and has a pending code, the code will go away. If the code was a hard permanent code, then the ECM (computer) would need a hard reset.

Can you test a TPS sensor?

You will need a multimeter to test the TPS sensor. Testing it involves grounding the connectors’ terminals as you put the multimeter probe on black to negative and red to positive. Make sure the throttle is fully closed by turning the key without starting the vehicle. Then read the voltage.

Is throttle position sensor same as accelerator pedal position sensor?

The accelerator pedal sensor (APS) indicates the position of the accelerator on vehicle models with electronic throttle control. The APS is basically a throttle position sensor (TPS) with a pedal attached.

What should my TPS sensor read at idle?

At idle is should be zero or a couple of degrees. Press down on the gas pedal very S-L-O-W-L-Y until the throttle is all the way open. You should see the percentage of throttle opening gradually increase to 100 percent at wide open throttle.

How do I fix code P2135?

What repairs can fix the P2135 code?
Replacing one or both throttle position sensors.Replacing the accelerator pedal position sensor.Repairing a fault in a circuit (throttle position sensor circuit, accelerator pedal position sensor circuit) such as open, short, corroded wiring, or poor connection.

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