P1221 ISUZU - Throttle Position Sensor 1- 2 Correlation

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

P1221 ISUZU Possible Causes

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

How do I fix code P1221 ISUZU

    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 connector's pins.

Cost of diagnosing the P1221 ISUZU code

    Labor: 1.0

    The cost of diagnosing the P1221 ISUZU 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.

P1221 ISUZU Possible Symptoms

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

P1221 ISUZU 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 P1221 ISUZU - Throttle Position Sensor 1- 2 Correlation - Engine-Codes.com

P1221 ISUZU More Information

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