LEMON Manuals: Even more car manuals for everyone
Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (6.7L Diesel - DTCS - P21C4 To U1601 - 3500 Cab & Chassis) >> Diagnosis and Testing >> U1421-Implausible Ignition Key Off Time Received >> Code Description >> Set Condition:

Set Condition:

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. 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.

scientia non olet · About LEMON Manuals