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ProMaster 2500 Base
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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3.6L - DTCS P0125 To P0140
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DTC Troubleshooting
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P0135 O2 Sensor 1/1 Heater Performance
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Set Condition
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Set Condition
The Powertrain Control Module (PCM) detects that the duty cycle is above 89.8% or the difference between the actual O2 Sensor Heater element resistance and target resistance is more than 95 Ohms.