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Reset immobilizer on 02 dodge dakota

How do i go about fixing code P1686 if i am correct this code is the skim only problem is my truck is not equipped with a skim or sentry key after researching i found that if your dodge has a gray colored key you have the sentry feature if it is black colored you do not mine is black help

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It work for me on 2010 Dakota ,put ignition on with load on it (headlight on) disconnect battery wait half and hour, reconnect battery it was ok, Running fine

Truck do nothing no starter engage red dot on dash board

Posted on Apr 23, 2014

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Code p1686?? I hv a 2001 dodge neon


This code means:

P1686 - No SKIM BUS messages received from the Smart Key Immobilizer Module (SKIM). This is part of the anti-theft system. There could be an issue with the module that won't recognize the ignition key or the module may be defective.

It's best to have this type of issue resolved at a qualified repair shop like the dealer.

Jul 23, 2015 | Dodge Cars & Trucks

1 Answer

2001 dodge Dakota 3.9 p1686 done everything but change pcm


are there any problems with the instrument cluster ? It may be the Smart Key Immobiliser Module , SKIM , not communicating with the security system , it will need a dealer equipped workshop to replace and reprogramme a new module as no diagnostic etc can be performed , as is the security system, hope this helps , the instrument cluster question is to help with a diagnosis, as this is associated with the SKIM failing

Jul 20, 2015 | Dodge Cars & Trucks

2 Answers

Hello, I have a jeep liberty 2002, I have p1686 runs and takes two seconds to turn off,, please if you can help me, thanks


you are swapping PCM's that be real bad.
on newer cars with Security this causes it to think your are a thief
and bricks the PCM (skim rules 101)
"until the pcm use in another jeep" huh?
SKIM is Phissed off.
http://www.jeepforum.com/forum/f9/trouble-code-p1686-905620/

Feb 01, 2015 | 2002 Jeep Liberty

1 Answer

Reset the ignition anti theft on my 2004 dodge stratus


If you are referring to the factory immobilizer, there is no resetting to be done.

The Sentry Key Immobilizer System (SKIS ) is designed to prevent unauthorized vehicle operation. The system consists of a Sentry Key Immobilizer Module (SKIM ), ignition key(S) equipped with a transponder chip and PCM. When the ignition switch is turned on, the SKIM interrogates the ignition key. If the ignition key is Valid or Invalid, the SKIM sends a PCI Bus message to the PCM indicating ignition key status. Upon receiving this message the PCM will terminate engine operation, or allow the engine to continue to operate.


For all faults except transponder faults and VTSS LED remains on steady. In the event of a transponder fault the LED flashes at a rate of 1 Hz (once per second). If a fault is present the LED will remain on or flashing for the complete ignition cycle. If a fault is stored in SKIM memory which prevents the system from operating properly, the PCM will allow the engine to start and run (for 2 seconds ) up to six times. After the sixth attempt, the PCM disables the starter relay until the fault is corrected.

Aug 14, 2013 | 2004 Dodge Stratus

1 Answer

Code p1686


ECM/PCM power relay control.

Jun 12, 2013 | Dodge Dakota Cars & Trucks

1 Answer

P0443 code THEN P1686...Help!


could be Trouble code P1686 means: A/T FI Signal B Low Input.

Jun 30, 2012 | 2004 Jeep Wrangler

1 Answer

What is error code p1686 on jeep Cherokee 2001


Hello lhernandez79,

The P-1686 is NO SKIM BUS MESSAGE RECEIVED.

SKIM stands for Smart Key Immobilizer Module.

One way I have solved this code is to disconnect the battery for about five minutes this resets the module.

I hope this helps.

Regards,

netvan

Aug 09, 2011 | 2001 Jeep Cherokee

2 Answers

1999 jeep showing code p1686


P1686 is a SKIM (Sentry Key Immobilizer Module) no signal code. The keys have tiny chips in them that have to match the SKIM module for that vehicle, if they dont match then the engine will stop running after a few seconds. This is to keep theives from making a key and driving away with you vehicle.
First of all, do you have 2 keys? If so try the other one, if it works, then the other sentry key (the one that didn't work before) has bit the dust. If both do not work and both seem to have same symptoms, then it is quite possibly the module under the sterering wheel cover attached to back of ignition switch which reads the sentry key and if it gets signal from sentry key, then it sends a signal to pcm allowing start up to complete with no shutdown. If this unit is bad, unfortunuately just replacing it is no help, because after replacement a DEALER must then program both the unit and your keys. Make sure you give the dealer both keys, as both have to be reprogrammed to the new unit, if only one is done, the other will not work.

Apr 24, 2011 | 1999 Jeep Cherokee

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