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Got a 2008 g6 it got code u0100 ECM/PCM don't crank at all got power I take out the car battery for like ten min that alli did

Don't crank on a error on dish after taking battery off for ten min

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How do i fix error code u0100 on my 2009 saturn aura xe?


That sounds an awful lot like the ECM is having trouble. Since the model year is nearly 7 years old, it is possible that the ECM is toast or that a wire or two has a corroded connection. Have a look at this information: http://engine-codes.com/u0100_saturn.html

Hope this helps.

Jun 29, 2015 | 2009 Saturn Aura

1 Answer

Toyota codes u0100 and u0101


U0100 means lost of communication with ECM/PCM
U0101 means lost of communication with TCM

Feb 24, 2014 | 2007 Toyota Camry

1 Answer

Toyota vx 200series code u0100


that is a very serious comm problem (Im sad for you, scary code)
reset it and see if it comes back other sysptoms, low battery
just finished jumper cable jump starts, or other odd battery issues???
short answer: take it to Toyota.
long:
U1100 is seatbelt controller
U1110
Lost Communication with Clearance Sonar Module i cant find much on U0100, are you very sure that is it?
DTC U0100 Lost Communication with Engine Control Module (ECM)

1: check all fuses. using and ohm meter (restance low range) for 0 ohms.
2: check battery voltage running engine and not.
12.6v key off, 13.3 to 15v running, if not charge system failure.
3: pull battery minus lug for 1hr. and put back, keep in mind you can lose radio codes. or dead radio for lack of radio pw code.

4: re-seat all CAN buss modules in car, 1 by 1one battery minus pulled.
PCM, BCM , all off them. reseat means pull connector to it and put it back.
It might just be a random glitch, that all comms see, all the time on all networks. Unknown, glitch. (CRC failure)

Jan 31, 2014 | 2004 Toyota Land Cruiser

1 Answer

2006 VW Jetta code U0100


This problem is with ecu / ecm= engine control computer. These are a common and horrible problem on vw's, particularly on tdi's. The signs in a tdi are when car dash lights come on, but no glow plug light,trans gear lights flash, but car still tries to crank. And hopefully ecu has enough power to out out code u0100= no communication with ecu. Unfortunately the ecu will need to be replacd. The ecu is located under the hood, near and under the wipers. Used ecu with same codes run $50-200. New $1000. If get used one make sure has a return policy. codes must match production quarterly year.

Apr 14, 2013 | 2006 Volkswagen Jetta

1 Answer

How to fix code u0100 on a 2008 Chevy siverado no start no crank


you somehow lost communication to pcm , check all fuses, if all are ok then you may have a bad pcm

Feb 25, 2013 | Cars & Trucks

1 Answer

What do the code u0100 mean on dodge charger 2006


Hi,


The U0100 code means there is Loss in communication with the ECM/PCM,which might be as a result of one of the following reasons listed below.

1. You had flash downloads applied to your vehicle. Many erroneous DTC codes are generated during flashing and should be cleared after flashing 2. You disconnected/reconnected computers in the car with the power still applied 3. An interruption (break or short) in the CAN network caused communication errors.


a simple software update will help you resolve the issue.




Good luck,

Aug 28, 2010 | 2006 Dodge Charger

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