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Isuzu
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2003
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Axiom XS, 4WD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Self-Diagnostics
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Diagnostic Tests
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DTC P0155: Heated Oxygen Sensor Bank 2 Sensor 1 - Heater Circuit
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Conditions For Setting DTC
Conditions For Setting DTC
Engine has been running for 120 seconds or more.
Ignition is ON.
HO2S heater signal is less than 0.1 amp, for a total of 50 percent of the 50 samples monitored.