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Home >> Infiniti >> 2004 >> QX56 AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System >> DTC P1031, P1032, P1051, P1052: A/F Sensor 1 Heater >> DTC Confirmation Procedure >> Testing Condition
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Testing Condition

Before performing the following procedure, confirm that battery voltage is between 10.5V and 16V at idle. 

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