SOURCE: car starts run's 3 seconds shuts down
Your car is equipped with a system called PASSKEY standard on all GM cars and light trucks, try the following procedure to reset the system, the battery being dead will trigger the system.
PASSKEY LOCKOUT RESET GM CARS 1999 UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the passlock system to recognize your key.
SOURCE: Hi my 2001 dodge caravan was stolen about 2 weeks
you have to take it to the dealer and get the anti theft module reflashed - most dealers charge around 95.00
SOURCE: 2005 F-150 Need To Reset
Hi and welcome to FixYa!
As a first course of action please disconnect the positive battery connector and let it sit for atleast 5mins. then reconnect it again. This should reset the system.
After reconnection of the positive battery connector please insert the key and turn it on ON position but don't crank it then turn OFF. Perform this ten times and on the 10th time crank the engine.
Hope this helps and thank you for using FixYa! Have a good one!
SOURCE: what does the code 1686 mean for a jeep grand cherokee
you have dash lamps acting funny?
diesel engine? or gas, and what displacement? 4.0 , 4.7
P1686
did the immo lamp glow.
did you scan the PCM and see if 1685 (wrong key code)
1686, rigth out of fsm
Trouble Code: P1686 4.7L
No SKIM Bus Messages Received
Number of Trips to Set Code: 1
PCM details.
Trouble Code Conditions:
Engine started; and the PCM did not detect any MIC (I/P Cluster) messages over the Data Bus circuit for 20 seconds.
Possible Causes:
this means, the PCM can not talk to the I/P cluster puter.
comm fail.
even wilder guess is PCM talks to KEY via cluster so if cluster dead
so be key.
bad fuses ?
the FSm dont cover defeating any alrarms or IMMO less crooks read it. so...... google it.
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