Throttle position sensor out of range

What it means

P1125 is stored when the Throttle position sensor out of range signal is electrically valid but does not make sense compared with other sensors or the expected operating range. The circuit is usually fine; the component or what it measures is out of specification.

This entry is compiled automatically from the standard definition and typical diagnostic practice for this type of fault. A detailed, reviewed article is in preparation.

Symptoms

• Check engine light on
• Rough or unstable idle
• Hesitation or poor acceleration
• Increased fuel consumption
• Possible limp mode with reduced power

Common causes

1. Throttle position sensor out of range worn, contaminated or out of calibration
2. Mechanical problem in the system the sensor measures
3. Air, vacuum or exhaust leak influencing the reading
4. Wrong or low-quality replacement part
5. Wiring resistance causing a small voltage offset

How to diagnose

1. Compare the live Throttle position sensor out of range reading with a known-good value or a second sensor at idle and at 2500 rpm
2. Check for air, vacuum or exhaust leaks that could skew the reading
3. Inspect the component for contamination and clean it if the design allows
4. Verify the part number is correct for the engine
5. Replace the Throttle position sensor out of range if the reading remains out of specification

Related codes

Nearby codes in this group

• P1124Manifold Absolute Temperature Circuit High Input
• P1126Throttle Position (TP) Sensor Circuit Intermittent High Voltage
• P1123Manifold Absolute Temperature Circuit Low Input
• P1127Throttle Position (TP) Sensor Circuit Intermittent Low Voltage
• P1122Engine Coolant Sensor intermittent/ECT Sensor Intermittent
• P1128Throttle Position Sensor In Range But Higher Than Expected
• P1121Engine Coolant sensor out of range/ECT Sensor Out Of Self Test Range
• P1129Throttle Position Sensor Out Of Self Test Range