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volvo670 fault codes help

Discussion in 'Trucks [ Eighteen Wheelers ]' started by mahittsingh, Jun 18, 2015.

Page 1 of 2
  1. Jun 18, 2015 #1
    mahittsingh

    mahittsingh Bobtail Member

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    Dec 3, 2014
    0
    Hello everyone
    I have 2006 volvo 670 Cummins isx 475 with these codes:
    MID 140 PID 118 FMI 6
    MID 128 SID 27 FMI 3
    if someone can help decipher them please.
     
    mahittsingh, Jun 18, 2015
    mahittsingh, Jun 18, 2015
    #1
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  3. Jun 19, 2015 #2
    gbrown

    gbrown Light Load Member

    55
    8
    Jul 25, 2011
    riverside ca
    0
    gbrown, Jun 19, 2015
    gbrown, Jun 19, 2015
    #2
    mahittsingh Thanks this.
  4. Jun 19, 2015 #3
    GrapeApe

    GrapeApe Road Train Member

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    Jan 7, 2013
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    MID 128 is the engine ECU, SID 27 is the VGT actuator, FMI 3 is low voltage.

    I don't have a list for MID 140. All I can tell you is that MID 140 is the instrument cluster and FMI 6 is high current. I don't know what PID 118 is though, so I can't tell you what has high current.

    Pablo-UA is good with Volvo's and he hangs out in the Volvo section, you might get some better help in there.
     
    GrapeApe, Jun 19, 2015
    GrapeApe, Jun 19, 2015
    #3
    mahittsingh Thanks this.
  5. Jun 19, 2015 #4
    Bogi

    Bogi Light Load Member

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    Jul 15, 2013
    Elk Grove Village, IL
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    ECU is powered directly from batteries, there is thin red wire with fuse on it. If it's autoshift there is one more powering transmission TCU. Check these cables, right on batteries.
     
    Bogi, Jun 19, 2015
    Bogi, Jun 19, 2015
    #4
    mahittsingh Thanks this.
  7. Jun 19, 2015 #5
    mahittsingh

    mahittsingh Bobtail Member

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    Dec 3, 2014
    0
    Whatz happening is secondary air buzzer comes on air drops to 0 or 60 or 20.. sometimes it does that for a while and then all of a sudden it goes back to normal. I noticed when I hit a pothole or when itz windy or when i m changing lanes..it happens. When sitting overnight it starts bk normal n morning. Andy cab air leveling valve is not working. Could it be that?
     
    mahittsingh, Jun 19, 2015
    mahittsingh, Jun 19, 2015
    #5
  8. Jun 19, 2015 #6
    Helowrenchturn2

    Helowrenchturn2 Medium Load Member

    484
    140
    Apr 23, 2013
    0
    Mid 140 pid 118 fmi 6
    Secondary air pressure transducer
    High voltage

    Not sure what this part is but it seems to be electrical in nature. I would guess that you have a wire shorting out somewhere. That would explain why it does it on bumps or turning.
     
    Helowrenchturn2, Jun 19, 2015
    Helowrenchturn2, Jun 19, 2015
    #6
    mahittsingh Thanks this.
  9. Jun 19, 2015 #7
    GrapeApe

    GrapeApe Road Train Member

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    Secondary air pressure transducer would be the sensor that converts the air pressure to an electrical signal to the gauge. Not sure where it is on a Volvo, but you need to find it. It may just be a bad connection on it, could be a wiring problem or the sensor failing. Good chance that you'll find a bad connection in the circuit, judging from it changing when you hit bumps.
     
    GrapeApe, Jun 19, 2015
    GrapeApe, Jun 19, 2015
    #7
    mahittsingh Thanks this.
  10. Jul 15, 2015 #8
    mahittsingh

    mahittsingh Bobtail Member

    12
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    Dec 3, 2014
    0
    Thanx everyone...found the problem...it was the sensor.On the driver side if you take out the bottom panel by the brake pedal behind it you will see two sensors on the firewall. Sensor on the right was bad. Take it out and replace it. It cost $90. 1/2 hour job.
     
    mahittsingh, Jul 15, 2015
    mahittsingh, Jul 15, 2015
    #8
  11. Jul 16, 2015 #9
    Pablo-UA

    Pablo-UA Road Train Member

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    Oct 11, 2010
    Borispol, Ukraine
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    First of all u have bad wiring ore bad air pressure sensor of rear brakes

    And as usually EGR problems
     
    Pablo-UA, Jul 16, 2015
    Pablo-UA, Jul 16, 2015
    #9
    mahittsingh Thanks this.
  12. Jul 24, 2015 #10
    mahittsingh

    mahittsingh Bobtail Member

    12
    0
    Dec 3, 2014
    0
    Actually the problem creeped up again...guage would still drop but this time i unplugged the sensor i had changed and plugged it back and everything is normal. I think its a short circuit somwhere.will try to trace it up to the cluster this weekend and update you all.
     
    mahittsingh, Jul 24, 2015
    mahittsingh, Jul 24, 2015
    #10
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