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Home >> Hyundai >> 2009 >> Elantra Touring Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> Inspection Chart For Diagnostic Trouble Codes (DTC) >> P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) >> DTC Detecting Condition
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P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1): DTC Detecting Condition

P0134 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1)

Item Detecting Condition Possible Cause
DTC Strategy Case1
  • Signal plausibility during fuel cut-off
  • Poor connection or damaged harness
  • HO2S contamination
Case2
  • Signal amplitude plausibility
Enable Conditions Case1
  • fuel cut off active
  • Fuel cut off phase
  • 16g< Integrated Mass Air Flow since Fuel Cut-Off begin
  • No relevant failure
  • 10V< Battery voltage
Case2
  • Signal stroke valid
  • Lambda controller not on the limit
  • Lean/rich cycle time < 2.5 sec
  • No relevant failure
  • 10V< Battery voltage
Threshold Value Case1
  • HO2S voltage at fuel-cut mode > 0.1V
Case2
  • Upstream O2 sensor signal stroke < 0.25 V
Diagnostic Time Case1
  • 5 sec.
Case2
  • 120 sec.
MIL On Condition
  • 2 Driving Cycles
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