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General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause  
CASE1 DTC Strategy
  • Circuit continuity check, pulse test
  • Poor connection
  • Open or short in control circuit
  • Knock sensor
  • PCM
Threshold Value
  • Integrator value difference (End value - Start value) < 4V
    
CASE2 DTC Strategy
  • Circuit continuity check, zero test
Threshold Value
  • Integrator gradient > 200 V/sec
  
CASE3 DTC Strategy
  • Parity check
Threshold Value
  • Number of parity errors > 5
  
Diagnostic Time
  • Continuous
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