99 Volvo 770 Codes and issues please help

Discussion in 'Volvo Forum' started by zack.basic, Jul 3, 2011.

  1. zack.basic

    zack.basic Bobtail Member

    7
    3
    Jul 3, 2011
    Lawrenceville, GA
    0
    Hello everyone
    I just purchased a 99 Volvo 770 with a Detroit 12.7 L and a 13 spd fuller nice looking and runing truck but I just figured out how to use the #### diagnostic system and found a few codes on it I would like to know what the codes really mean and if there is a way to erase the codes so I can see if they come back up or if maybe the codes have been fixed , Please thank you
    so the codes then
    1 engine % throttle pedal voltage shorted low inactive count 1
    2 engine PID voltage shorted high inactive count 12
    3 engine SID 239 voltage shorted high inactive count 12
    4 engine SID 51 voltage shorted high inactive count 8
    5 Airbag not responding
    6 brakes ABS snsr axle 2 l data valid but low inactive count 127
    7 brakes ABS snsr axle 2 l abnormal change rate inactive count 25

    the only other issue I have is the marker lights the previous owner installed go on and off but I checked the wiring and its all there and in its not shorting out or anything the lights just go on and off randomly every 20 min and come back after 2 min don't know what that is does anybody know
     
    Last edited: Jul 3, 2011
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  3. ohio_redneck75

    ohio_redneck75 Light Load Member

    128
    51
    Sep 27, 2010
    coshocton,ohio
    0
    the light issue may be the breaker is getting week.
     
  4. zack.basic

    zack.basic Bobtail Member

    7
    3
    Jul 3, 2011
    Lawrenceville, GA
    0
    oh OK thank you i ll check that out
    does anybody know anything about those codes
     
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