602
Thermo King
Warning
Check Intake Throttle Position Sensor
Intake throttle/butterfly position sensor reporting out-of-range values.
Possible causes
- Damaged throttle position sensor
- Obstructed or stuck linkage
- Electrical failure in the sensor circuit
Recommended actions
- Verify throttle moves freely
- Measure reference and signal voltages
- Calibrate or replace the throttle body
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