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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (6.7L Diesel - DTCS P2000 To U1601 - 2500 & 3500) >> Diagnosis and Testing >> U1421-Implausible Ignition Key Off Time Received >> Set Condition:

Set Condition:

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

If the difference between coolant temperatures at the previous ignition off and next key on is greater than -12.2°C (10°F), and the ignition off time was less than two minutes, the Powertrain Control Module (PCM) increments a fail counter of one. If the fail counter reaches 16 counts, a DTC is set and MIL lamp turns on.

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