I HAVE A P1122 CODE TP SENSOR LOW VOLTAGE CODE

  • Tiny
  • Anonymous
  • 2004 CHEVROLET IMPALA
  • 128,588 MILES

I have a P1122 code TP sensor low voltage code. What does it mean and how can I fix it?

Friday, February 22nd, 2013 AT 5:24 AM

1 Reply

  • Tiny
  • Caradiodoc
  • EXPERT
  • 25,974 POSTS

Measure the voltages on the throttle position sensor wires by back-probing through the connector. It needs to remain plugged in. One wire must have 5.0 volts. Usually that 5.0 volts feeds other sensors too so if you only get a code for one of them, look at the connector pins first for signs of corrosion or a stretched terminal that isn't making good connection.

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Friday, February 22nd, 2013 AT 5:50 AM

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