Power Solutions International

DTC 154

UnclassifiedElectrical

What This Code Means

HO2S voltage fixed between 0.4 and 0.6 volts during Closed-Loop Active; HO2S signal circuit or return circuit resistance is 5 ohms or greater; HO2S heater low side circuit or heater high side to power relay resistance is 5 ohms or greater

Possible Causes

  • •Faulty HO2S wiring harness
  • •Faulty HO2S Sensor

Suggested Actions

  1. 1Repair wiring harness and retest
  2. 2Replace HO2S Sensor and retest

Related Power Solutions International Fault Codes

DTC 160 2DTC 562DTC 122DTC 642DTC 118DTC 643DTC 113DTC 107891030112122643
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