P0343high severityPowertrain

Camshaft Position Sensor A Circuit High Bank 1

on 2012 Chevrolet Impala 3.5L V6 ยท FWD

What this code means

High signal from CMP sensor A Bank 1.

Symptoms

  • Check Engine Light
  • Hard starting

Common causes

  • Short to power
  • Faulty sensor

Diagnostic steps

  1. Test voltage
  2. Check for shorts

Repair notes

Replace sensor.

Other Powertrain codes on this vehicle

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