Question about 1999 Volvo V70

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I put the computer on my volvo v70 n i have this code ..p0460,p1618,p0722,p1550 and i like to know what r they and how can i fick them cuz i need to pass the inspection to get it register . in the dasboard i have on the check engine light,brake light and the abs light .if some one can help me to see what the i have to do and what the i have by to get it ficks i will apresiate. thank

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P0460 is a code that indicates a fault in the fuel level sensor. Need to check for power and signal at the sensor. P1618 and P0722 are related to the vehicle speed sensor. P1550 is an ABS/Tracs code usually caused by a faulty ABS control module.

Posted on May 01, 2015


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Per other sites I've seen these 2 codes p1618,p0722, are your ABS module. It can be taken out and re soldered and will work fine. Many Volvo mechanics know how to do this or you can find a repair service on Ebaymotors possibly. My guy charges me $150. Supposedly you can even drive the car without the module installed but you won't have abs so don't expect to stop as you usually would with a correctly working ABS. Your tires will now skid old school instead of the abs module taking over and pullsing your brake pedal, etc.

Posted on Feb 07, 2011


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I have following codes on my 1999 Volvo V70. P0116, P0500,P1618,P1671,P0810.

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Volvo(S70) code P1618, P0600,P0722, P0717

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I have a problem with a code p0722 in a 1999 volvo s 70

Trouble code P0722 means: Transmission Speed Signal Missing
I'm not a Volvo kind of guy. Just letting you know what the trouble code means.

Sep 22, 2011 | 1999 Volvo S70

1 Answer

Error code P0785 on Volvo V70 XC -00. What's the problem? I have also error code P1618.

P0785 - Shift/Timing Solenoid Malfunction (3-2 shift solenoid is not working properly)
P1618 - Diagnostic Trouble Code (DTC) in another control module (in this case, in the Trans Module)

Flush the transmission, get any software upgrades available, reset the adaptors and try it, nothing to lose.

If it doesn't work you will need a transmission. Solenoids are internal, that's what controls the shifts.
They could be faulty or the valve body but one should always do what I said once, if it doesn't fix it, you're looking at a transmission.

The resetting of adaptors is crucial if you update the software. It's basically wiping the memory of the TCU (transmission controller) and teaching it how to shift properly again.

Also could check this TSB...

The reason why I ask, is because anytime there are MULTIPLE transmission solenoid codes, its usually the result of a failed ignition switch. However, since only two codes appeared and were one at a time, I think at this point, its unlikely the result of an ignition switch failure.

P0785 is for the 3-2 downshift solenoid. Either the solenoid is faulty, or something got damaged while the 1-2 solenoid was being replaced. (connector knocked loose, wire rubbing on pan or valvebody, etc...).

The 3-2 solenoid is #394 in the picture below, which is at the opposite end of the 1-2 solenoid.


P0785 is for the 3-2 solenoid and that is 394 in the picture. Is it likely to fix it? yes, but of course I cannot guarantee that it will, sitting behind my computer and never seeing the vehicle.

Hope this helps.

Jan 31, 2011 | 2000 Volvo V70

3 Answers

1999 volvo v70 awd xc. Trouble code p1618. Symptoms are it wont start. LImp mode? Seems that after testing and resetting codes, we turn the key, it starts as normal for about 3 seconds, then dies. Trying...

i got the same car as urs. its seems to me that its the classic problems that you have. To slove them. Dont go to a dealer, coz they ll rip u off. Now, check on DIY guide for uninstalling ABS moudle. Go to ebay, find urself a ABS Moudle rebuild. 60-80bugs. put it back on. It ll slove ur limb home mode, speed meter drop to 0 when driving. flashing arrow. Contact volvo, buy urself a new ignition antena ring, 50bugs. and once again. look for DIY guide for installation. I replace both of them myself for less than an hour. u might need to buy some special torx for abs moudle tho. but it wont be a big deal. Hope it helps you.

Sep 16, 2010 | 1999 Volvo V70

1 Answer

Code p1618?

This code indicates a communication problem between the engine and trans control units. When there is a problem with the trans, the control unit sends a signal to the engine control unit to turn the check engine light on. There is a problem with the that wire or corrosion on the control unit connectors.

Apr 09, 2010 | 1998 Volvo V70

1 Answer

There are 4 codes I need to know about P0810, P1132, P1618, and P1633, 2001 Volvo V-70 24T

810 neutral check, incorrect connection
  • Check the transmission and control module connectors. Check for contact resistance and oxidation according to Checking wiring and terminals. Permanent faults
  • 1132 front o2 sensor signal too high
    1618 dtc is in another module
    Volvo does not provide information regarding DTC P1633 for many of their models.
    However, it has been reported that various Volvo engine control modules will produce this code. The code is associated with a missing or inaccurate vehicle speed signal from the ABS control module and may be accompanied by DTC P0722 or P1618.

    Possible causes:
    - Defective vehicle speed signal to the ABS control module
    - CAN connection problem
    - Defective ABS control module
    - Defective engine control module

    Manufacture codes associated with this P code may include ECM-510f, 530d.

    Mar 28, 2010 | 1998 Volvo V70

    1 Answer

    2000 S70 has engine light on. Codes 722, 1618, 1633 but no obvious problem with the vehicle. Ideas?

    P0722 Output Speed Sensor No Signal
    P1618 SBDS Interactive Codes
    P1633 KAM Voltage Too Low
    hope this sheds some light on your enquiery...hope it helps

    Aug 26, 2009 | 2000 Volvo S70

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    Similar - all ABS, STC, check engine lights, car rough running

    Since I do not understand your "won't drive", I will suggest this. If before this problem your ABS light would come on and than it would go out after you restart your engine. The problem might be the ABS module. If you can read the OBD error codes you likely will have P0722, P1618 and P1633. A message that says the transmission needs service. From what I have found on the web is replacing the ABS module will correct the problem. It appears that the ABS module has a life of 5 years to 80,000 miles on average. Volvo networks a lot of its computer information thru the ABS, thus a bad ABS can indicate a bad transmission. I am told that Auto Zone auto parts can read the error codes for you. But they may require you to being your car to their stop. You can also purchase your own ODB II reader from and auto parts store or Sears. Hope that helps.

    Jul 03, 2009 | 2000 Volvo S80

    1 Answer

    1999 v70 XC

    you need to read it with volvo scanner/but its probably the abs control unit

    Aug 08, 2008 | 1999 Volvo V70

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