P16A1
Throttle Position Sensor Communication Circuit High Voltage
P16A1 is an OBD-II diagnostic trouble code meaning: Throttle Position Sensor Communication Circuit High Voltage. Common causes: short circuit in the sensor circuit, throttle position sensor malfunction. Estimated repair cost: $17–56.
Symptoms
- Unstable engine idling
- Dips when pressing the gas pedal
- Check Engine Light Illuminates
- Reduced engine power
- Increased fuel consumption
Causes
- Short circuit in the sensor circuit
- Throttle Position Sensor Malfunction
- Wiring harness damage
- Problems with the engine control unit
- Oxidation of contacts in connectors
How to Fix
- Check the integrity of wiring and connectors
- Measure resistance and voltage at the sensor
- Check the operation of the sensor using a scanner
- Replace the throttle position sensor if necessary
- Flash or replace the engine control unit if it is faulty
Related codes
FAQ
What does the P16A1 code mean?
P16A1 is an OBD-II diagnostic trouble code that indicates: Throttle Position Sensor Communication Circuit High Voltage
What causes a P16A1 error code?
The most common causes of P16A1 include: Short circuit in the sensor circuit; Throttle Position Sensor Malfunction; Wiring harness damage; Problems with the engine control unit.
How do I fix a P16A1 diagnostic trouble code?
To fix P16A1: Check the integrity of wiring and connectors. Measure resistance and voltage at the sensor. Check the operation of the sensor using a scanner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P16A1?
Limited driving only, diagnose soon
How much does it cost to fix P16A1?
The estimated repair cost for P16A1 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat