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General Information: DTC Detecting Condition

DTC DETECTING CONDITION AND POSSIBLE CAUSES

Item Detecting Condition Possible Cause
DTC Strategy
  • Plausibility check
  • Open/short in signal or ground circuit
  • Contact resistance in connectors
  • Faulty knock sensor
Enable Conditions
  • Engine load > 160 mg (0.4 mlb)/stk
  • Engine speed > 1600 rpm
  • No relevant failure
  
Threshold Value
  • Difference knock signal - noise level < 0.122V
  • Noise level < 0.16 or > 4.77
Diagnostic Time
  • 10 seconds
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