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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (DTCS P1D94 To U1479 - 8HP70 Automatic Transmission - 1500) >> Diagnosis And Testing >> P1DDD-TCM Monitoring Performance - Unable To Disengage Drive Or Reverse >> When Monitored

When Monitored

WARNING: This page is about a different car, the 2013 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

Gear disengagement: 

The ignition switch is turned to the run position.

Neutral or Park requested and three pressure regulators activated.

Engaged position Neutral or Park: 

The ignition switch is turned to the run position.

Neutral or Park requested and since the requested position change to Neutral or Park, the number of activated pressure regulators has been less than three for more than a calibrated amount of time.