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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 125 (Engine Control System Diagnosis (1 Of 2) (HEV)) >> DTC P0326: Knock Sensor 1 Circuit Range/Performance (Bank 1 Or Single Sensor) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Plausibility check
  1. Open/short in signal or ground circuit
  2. Poor connection or damaged harness
  3. Faulty knock sensor
Enable Conditions
  • Knock detection function active
  • Engine rpm >2700 rpm
  • Air mass >0.5g/rev(250mg/tdc.)
  • No relevant failure
Threshold Value
  • Difference between the processed knock sensor signal and its mean does not exceed a threshold(0.08V) & the integral of the processed knock sensor signal does not reach the threshold(3V) for cylinders 2 and 3
  • If the mean processed knock sensor signal of any one cylinder leaves the valid range(0.1V~4.5V).
Diagnostic Time
  • 100 rev.
Mil On Condition
  • -
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