C-Code A7 ?

[HDaniel]

The other day I was pulling a car out of the snow and my ABS and Brake lights came on. The car was high-centered so I had to rock it a bit. I really didn't think anything of it because I shut it down and fired it right back up and the lights were out. When I got home I cycled the key 3 times and no codes, but when I held the trip counter and cycled once I got this:



C-Code

A7 00

00 00



I can't find anything on here even close to that. Any help would be appreciated. Just curious. Thanks in advance.

 

[CBrahs]

when you were pulling the car out did 1 or more of your tires spin? could be a wheel speed code since one was spinning and the others were not.

 

[Prairie Dog]

I got stuck in the snow one time and mine came up with those codes too. I never saw it again. After 9 starts it should go away unless the problem persists.



Scotty

 

[HDaniel]

Thanks for the reply guys. I would have responded before but my subscription had run out. Anyway, CBrahs, there were at least 2 spinning because I was in 4wd, but not that fast. I am not sure how fast is too fast, or if any difference is too much. It has been a little over a week now and the code is still there. Is this a code that would register if I went to a parts store and had them scan it? If not does anyone know where I can find a list of codes and their translations. I just don't want to go to the dealer unless I have to, because I don't want to mess around with putting the cat and muffler back on just to have them tell me that it's nothing big and clear it. Thanks again for ya'lls responses.

 

[JVolpe]

The C-code A7 00 is an Instrument Cluster code I believe.



A7 VIN checksum error

 

[HDaniel]

I appreciate the reply. Can you tell me where to find this kind of info? Thanks.



Bert

 

[JVolpe]

HD,



On my 04. 5 to run the Instrument Cluster diagnostic you make sure the OD display is on total miles, not trip miles. Turn key to on position and push and hold OD/Trip button down until instrument cluster go banannas with lights, etc. When it is done it will display any Instrument Cluster Trouble Codes on the OD display just like DTCs. It will display 00 00 when finished displaying any set codes. The display format of the cods is xx nn, where xx is the code and nn is the number of times the key has cycled after the code was set. I think that is what the number is referring to anyway. Here is a list of the Instrument Cluster codes that I got out of my DC diagnostic manual.



Instrument Cluster Diagnostic Trouble Codes

01 Airbag warning indicator output circuit shorted

02 Airbag warning indicator output circuit open

03 ABS indicator output circuit shorted

04 ABS indicator output circuit open

05 MIL indicator output circuit shorted

06 MIL indicator output circuit open

07 Wait to start indicator output circuit shorted

08 Wait to start indicator output circuit open

0B BTSI output circuit shorted or open

0C PRNDL switch input circuit shorted

0D PRNDL switch input circuit open

20 Panel dimmer input circuit shorted

21 Panel dimmer input circuit open

22 Headlamp switch input circuit shorted

23 Headlamp switch input circuit open

24 Turn hazard switch input circuit shorted

25 Turn hazard switch input circuit open

26 Panel illumination output circuit shorted or open

27 Courtesy/dome lamp output circuit shorted or open

28 Glovebox/map lamp output circuit shorted or open

29 Cargo lamp output circuit shorted or open

40 Wiper switch input circuit shorted

41 Wiper switch input circuit open

42 Wash/beam input circuit open

60 Passenger door lock switch input circuit shorted

61 Passenger door lock switch input circuit open or short to voltage

62 Passenger door lock switch input circuit stuck

63 Driver door lock switch input circuit shorted

64 Driver door lock switch input circuit open or short to voltage

65 Driver door lock switch input circuit stuck

66 All door lock output circuit shorted to ground or voltage

67 All door unlock output circuit shorted to ground or voltage

68 Driver door unlock output circuit shorted to ground or voltage

69 Passenger cylinder lock switch input circuit shorted

6B Passenger cylinder lock switch input circuit stuck

6C Driver cylinder lock switch input circuit shorted

6E Driver cylinder lock switch input circuit stuck

80 Incorrect odometer value found

81 Remote radio switch circuit high

82 Remote radio switch circuit stuck

A0 Internal module FLASH memory checksum failure

A1 Internal module bootloader failure

A3 BATTERY voltage open

A4 Ignition RUN/START circuit rationality check

A5 TCCM messges not received

A6 Ignition UNLOCK circuit rationality check

A7 VIN checksum error

A8 VIN previously stored

A9 PCI Bus internal failure

AA PCM messages not received

AB TCM messages not received

AC ABS messages not received

AD FCM messages not received

AE ACM messages not received

AF SKIM messages not received

B0 RKE fob battery low

B1 RKE module communication link

B2 Cluster mismatch

00 DONE

 

[HDaniel]

JV, Thanks for the list. Do you have any idea what a VIN checksum error is? I cannot find a thing anywhere on the internet. Thanks again.



Bert

 

[JVolpe]

My "guess" is that it was just a momentary glitch unless it keeps comming up. Get same type of related P-Trouble code occasionally. Usually does not mean anything. If it is a real error of that type you would know for sure.