Question about Dodge Caravan
My van threw these codes 12 21 55 i know 55 is end code but they told me 12 was transaxle unlock code and 21 was distributor coil please help
Well, the code 12 is telling you the battery or the computer has been disconnected in the last 50 starts, code 21 is a problem with the O2 sensor, and code 55 is telling you there are no more trouble codes stored in memory.
Code 21 means the O2 sensor is not switching from rich to lean, which can be a faulty sensor or a fuel problem.
Posted on Aug 29, 2012
Code 12 is: Direct battery input to PCM was disconnected within the last 50 key-on cycles.
Code 21 is: Neither rich nor lean condition detected from the oxygen sensor input or oxygen sensor input voltage maintained above the normal operating range.
Posted on May 23, 2008
SOURCE: 1999 Dodge Caravan
A P1698 code is described as PCM Fault, No CCD Messages from TCM Conditions. It's triggered when the key is on, and the PCM did not detect any CCD messages from the Transaxle Control Module (TCM) for 10 seconds. Time for a trip to the dealer unless you feel like inspecting the wires & connectors leading to/from the TCM. Usually I tell people to go to the dealer when there are TCM problems! They can read any codes stored in the TCM that a regular code reader can't get. Good luck.
Posted on Feb 12, 2009
That is a code for the secondary (spark) circuit on cylinder number 3. It is usually caused by a bad connection between the coil and the plug (take the coil off the plug and check for moisture in the boot). If not, it might be a bad coil...
Posted on Sep 17, 2009
you are incorrect on your code read. u0155 is lost comm with IPC, u110c is no fuel read, u0140 lost comm with BCM and can all be fixed with a new BCM.
Posted on Jun 15, 2010
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