Throttle Position Sensor: Adjustments

Throttle Position Sensor Schematic:

CHECK THROTTLE POSITION SENSOR OUTPUT

1. Connect the Rotunda Breakout Box 014-00322 to the powertrain control module.

2. Turn the ignition switch (11572) to the ON position.

3. Measure the voltage between breakout box pin 47 and pin 46 SIG RTN (ground).

4. Rotate the throttle linkage by hand and observe the voltage readings.

5. With the throttle valve fully closed, the voltage must measure 0.5 volts.

6. With the throttle valve fully open, the voltage must measure 4.1 volts.

Throttle Position Sensor:

THROTTLE POSITION SENSOR ADJUSTMENT

NOTE: If the voltage is not within specifications, adjust the Throttle Position Sensor (TP) as follows:

1. Loosen the TP sensor set screws.

2. With the throttle valve fully closed, rotate the TP sensor until the voltage is 0.1-1.1 volts.

3. With the throttle valve fully open, verify that the voltage is 3.1-4.4 volts.

4. Tighten the TP sensor set screws to 2 Nm (14-20 in lb).