P1220 BUICK - Throttle Position Sensor 2 Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?

P1220 BUICK Possible Causes

  • Faulty Throttle Position (TP) Sensor
  • Throttle Position (TP) Sensor harness is open or shorted
  • Throttle Position (TP) Sensor circuit poor electrical connection

First diagnose P1220 BUICK code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the P1220 BUICK code

    Labor: 1.0

    The cost of diagnosing the P1220 BUICK code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P1220 BUICK Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1220 BUICK Meaning

The Throttle Position (TP) Sensor is mounted on the throttle body of the Throttle Actuator Control (TAC) assembly. The sensor is actually 2 individual throttle position sensors within 1 housing. Two separate signal circuits, a low reference circuit, and a 5-volt reference circuit are used in order to connect the TP sensor assembly and the TAC module. The TP sensor signal voltage increases as the throttle opens. The signal circuit for TP sensor is pulled up to 5-volt reference voltage.
OBDII Code P1220 BUICK - Throttle Position Sensor 2 Circuit - Engine-Codes.com

P1220 BUICK More Information

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