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Link: How to get the codes if the following instructions don't work
To get the codes, cycle the ignition key On - Off - On - Off – On within 5 seconds. The odometer will show the P-code. If there are no codes, “Done” will appear. A code P1684 shows that the memory has been cleared recently and is not necessarily a problem. More instructions and other code lists.
We are linking errors to specific help pages as an ongoing project.
On this page, MAF = mass airflow, MAP = manifold absolute pressure. Few Chrysler vehicles use an MAF. MAP sensors have a tendency to fail without setting codes.
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Chrysler, Plymouth, Dodge, and Jeep car, minivan, and truck computer fault codes: how to get them and what to do with them. Good for sensor and other troubleshooting.