Question about Cars & Trucks

1 Answer

What does codes P0051 and P1684 mean on my 2001 pt cruiser

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.


    An expert who has answered 20 questions.

  • Expert
  • 124 Answers

O2 sensor (found just in front of the cat) or Power steering pressure sensor fault if it's a typo and should be P0551.
Ignore P1684 as it just means sometime in the last 50 starts the battery was disconnected

Posted on Apr 17, 2017


2 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

  • 14036 Answers

SOURCE: Engine light codes P0551 and P1684


Posted on Aug 23, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

What does code P1684 for Chrysler pt cruiser mean?

P1684 means battery disconnected within the last fifty starts

Apr 11, 2015 | Chrysler Cars & Trucks

2 Answers

What do the codes P1684 and P0700 mean?

Hi Rich Stuck,P0700 means Transmission Control System (MIL Request),P1684 means Battery Disconnected within last 50 starts.More read Diagnostic Trouble Code Table ,hope it can help you.

Dec 08, 2012 | 2002 Chrysler PT Cruiser

1 Answer

We change the computer in our 2002 and there are 2 codes showing on the screen. P1684 & P1685

Code 1684 says the computer has lost battery voltage in the last 50 starts, and code 1685 means the security code in the key is not valid.
You may have to have the computer flashed by the dealer to match the original settings in the original computer.

Aug 17, 2012 | 2002 Chrysler PT Cruiser

1 Answer

Got codes P0401---EGR Valve. P1684---have found two different meanings for this code. One says a readiness test. Not all readiness tests have been performed. This means that at least one of the many...

P1684 Metering Oil Pump Position Sensor Circuit Malfunction, , on a dodge it means just that , you've disconnected the battery its just a status code,, don't worry about this one,, Now the P0401 Exhaust Gas Recirculation Flow Insufficient Detected,
  • Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticable difference in RPM's with the EGR open
  • Clean out the EGR valve and/or tubing to remove deposits
  • Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model)
  • Replace the DPFE sensor (with a good quality / OEM one)

  • Aug 10, 2011 | 2001 Chrysler PT Cruiser

    3 Answers

    Errors P1684 given, how do I fix

    The first code, p1684, just states the battery has been dis-connected in the last 50 start cycles.
    Code p0401 is the EGR flow. You may need to replace the EGR valve.
    Code p1193 is the intake air temperauture ( IAT) sensor. It may also need to be replaced.
    Have your mechanic take a look at those, and please let me know how it goes.

    Feb 11, 2010 | 2001 Chrysler PT Cruiser

    2 Answers

    Engine light codes P0551 and P1684


    Aug 23, 2009 | 2001 Chrysler PT Cruiser

    1 Answer

    WILL A Dnr code stop a car from firing

    Considering that all of the codes you mentioned had something to do with electrical signals from the various sensors, my bet is on wet connections. Try taking a blow dryer set on low heat to the wiring connectors.

    Mar 15, 2009 | 2001 Chrysler PT Cruiser

    Not finding what you are looking for?
    Cars & Trucks Logo

    Related Topics:

    37 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Cars & Trucks Experts


    Level 3 Expert

    77932 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22306 Answers

    Thomas Perkins
    Thomas Perkins

    Level 3 Expert

    14403 Answers

    Are you a Car and Truck Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides