What does the code 1686 mean for a jeep grand cherokee
My jeep starts up runs for a few seconds and shuts off. I am able to by pass the anti theft device? or how can I sync them together so it stay running?
Cars & Trucks - Jeep - Grand Cherokee - 1999 Jeep Grand Cherokee
Answers & Comments
You have dash lamps acting funny?
>Instrument Cluster is damaged or has failed PCM unable to communicate with the Instrument Cluster PCM has failed this means, the PCM can not talk to the I/P cluster puter.
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 >
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.