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Home › Infiniti › 2003 › QX4 4WD › Repair and Diagnosis › Engine Performance › System › Engine Controls - Self-Diagnostics › Diagnostic Tests › DTC P1706: Park/Neutral Position Switch › Possible Causes

Possible Causes

ECM illuminates MIL and sets DTC P1706 when PNP switch signal does not change between starting and driving. Possible causes are:

PNP switch circuit open or shorted.
Defective PNP switch.