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Why driving car loses power , cannot communicate with scanner to check for codes

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Should get this checked out professionally before you ruin something.

May 05, 2018 | Geo Cars & Trucks

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What does the code b2 aaa mean on my 2012 kia forte

Possible reasons to get this bogus fault code:
1) The scanner is reading the code incorrectly. The generic scanners may work fine with the standard PowerTrain codes, but manufacturer specific codes may cause them problems.
Try having someone else scan it to see what code they get.
AutoZone and Advance both do it for free.
(2) If it is a legit code, then it is a manufacturer secret. They likely do hold back some info about codes. Most auto manufacturers I would guess are probably not too happy about OBD-II being forced on them, so likely they may have a few secrets they can hold back.
Not sure whether it is a legit code at this point. That needs to be verified.
When I searched the web, I did find a few others who have gotten this code, but none knew what is was

Jun 21, 2017 | Kia Cars & Trucks

1 Answer

Can not communicate with PCM via diagnostic scanner

Check for power on pin 16 of the connector.0ff5536b-47c0-4d21-a6b6-52e5ced78256.jpg

Jan 03, 2014 | 2003 Mitsubishi Lancer

1 Answer

1999 Jeep Grand Cherokee Laredo 8Cyl4.7L When when driving over 50 miles per hour will lose all power whats wrong?

When you say it loses power, do you mean electrical power or engine power ?
You would need to look at the fuse boxes for a loss of electrical power, and use a scanner or code reader to check the computer for trouble codes for a loss of engine power.

Sep 18, 2012 | 1999 Jeep Grand Cherokee

1 Answer

2008 Pontiac g6 ecm port under the dash, when code reader is plugged in it gives a link error? Any ideas what to troubleshoot

is your code reader "can" ready? the newer cars communicate to scanners using different protocols and your scanner may not have that protocol. have you scanned the vehicle using this scanner before? also check fuses as most manufacturers use the cigaret lighter fuse to power the "dlc" data link connector.

Jun 09, 2011 | Pontiac G6 Cars & Trucks

1 Answer

The check engine light with lightning bolt will come on and car will stall and not start back up for about 30 min after I tried to get engine codes but the scan tool will not connect I checked all fuses...

Do your radiator fans come on full speed? If so you are losing communication with your engine control unit! Same with the scanner, it links with the diagnostic interface which is integrated in the instrument panel. These are on the driveline CAN-bus! Do any other lights come on? ie ABS light.The main power relay for the engine control unit can play up usually caused by a faulty ignition switch!

Oct 08, 2010 | 2006 Volkswagen New Beetle

2 Answers

'94 chevy camaro z28 losing power while driving,

check the mas air flow meter could be starting to go and not yet throwing a code.

Jan 17, 2010 | 1994 Chevrolet Camaro

2 Answers

Failed communication with TCM

If you have a SS, take it to a transmission shop with a Tech 2 scanner. They can scan the ECM for proper DTC codes to make sure it's not the TCM and only a wire harness. If you like try checking all the wire harness from the transmission, look for loose connections and broken/crushed harness clips ect. Try this for now to clear all the DTC codes so there are no old codes in the history. Turn the ignition keys to the run position and pull the fuse to the ECM (BATT1) for 30 seconds. After placing the fuse back in start the car, it may stall but let it and don't touch anything. Just start it up again and go for a test drive after idling for 1 min. Then ECM needs to relearn all the sensors in the drive train. Any codes pulled will be new and recent to your transmission issues. Good luck and hope this helps. 

Jun 22, 2009 | 2004 Chevrolet Impala

1 Answer

Computer connection - codes?

in 1993, the computer systems were obd 1. which generally needed battery power to run scanner. 1996 up is obd2 and powers up scanner through data connector. not sure what kind of scanner you have. is it powering up ok and not communicating or cant get scanner to turn on?

Oct 16, 2008 | 1993 Buick LeSabre

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