Throttle Position Sensor: Adjustments

THROTTLE POSITION SENSOR ADJUSTMENT




Required Special Tools:
- MB991958: Scan Tool (MUT-III Sub Assembly)
- MB991824: V.C.I
- MB991827: USB Cable
- MB991911: Main Harness B
- MB991348: Test Harness Set

CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.




1. Connect scan tool MB991958 to the data link connector. When not using the scan tool MB991958, proceed as follows.




1. Disconnect the throttle position sensor connector, and connect the special tool MB991348 in between. (All terminals should be connected.)
2. Connect a digital voltmeter between throttle position sensor terminals No. 3 (sensor output) and No. 1 (sensor ground).

2. Turn the ignition switch to the "ON" position. (Do not start the engine.)
3. Check the throttle position sensor output voltage.

Standard value: 535 - 735 millivolts

4. If not within the standard value range, adjust by loosening throttle position sensor mounting bolts and turning the throttle position sensor body. After adjusting, tighten the bolts securely.
5. Turn the ignition switch to the "LOCK" (OFF) position.
6. Disconnect scan tool MB991958.
When the scan tool MB991958 is not used, remove special tool MB991348, and connect the throttle position sensor connector.

NOTE: If a diagnostic trouble code is sent while adjusting the throttle position sensor, use scan tool MB991958 to erase the diagnostic trouble code.