S40 Diagnostic Trouble Code "P1650"

Discussion in 'Volvo S40' started by Hakan Gemici, Apr 1, 2008.

  1. Hakan Gemici

    Hakan Gemici Guest

    My S40 giving a permanent P1650 error code for a long time. I thought it
    was because of worn spark plugs (I found an description on internet
    telling to do so) so I replaced them but nothing changed. I am scanning
    error codes with obd softwares digimoto and proscan. Whenever I cleared
    the error code it appears again if engine is running.

    Digimoto says:
    "P1650 PSP Switch out of self test range"

    where Proscan says:
    "P1650 Powertrain: Control Module Output B Circuit" (what does this mean?)

    I queried the error code on google and it returned some information like

    "P1650 - Power Steering Pressure (PSP) Switch Malfunction In Key On,
    Engine Off Self-Test, this DTC indicates the PSP input to the PCM is
    high. In Key On, Engine Running Self-Test, this DTC indicates that the
    PSP input did not change state. Steering wheel must be turned during Key
    On, Engine Running Self-Test
    PSP switch/shorting bar damaged
    SIG RTN circuit open
    PSP circuit open or shorted to SIGRTN
    PCM damaged."

    the description above quoted from a message board dedicated to owners of
    ford focus .

    "P1650 Quad Driver Module ''A'' Fault"
    from a suzuki forum

    "P1650 Driver 2 - Input High Voltage

    P1650 Power Steering Pressure Switch Malfunction

    P1650 Power Steering Pressure Switch Out Of Range"
    from a volvo850 forum.

    What shall I do?
    Hakan Gemici, Apr 1, 2008
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  2. Hakan Gemici

    Hakan Gemici Guest

    Hakan Gemici yazmýþ:

    Any comments?
    Hakan Gemici, Apr 6, 2008
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  3. I was told by a Volvo specialist that if a number of engine codes
    report all at the same time, have the battery tested. When I tested it
    with a cheap auto parts store tester, it showed me only one code, but
    when I took it in, the mechanics pulled about 12 codes off of it. He
    tested the battery for me and sure enough, it failed. Replacing the
    battery reset 10 codes, and the other 2 just needed some adjustment.
    Not sure if that is what you really have, but it's worth a shot before
    running out and replacing an expensive part.
    saucier.chris, Apr 8, 2008
  4. Hakan Gemici

    Hakan Gemici Guest

    My battery voltage seems normal and the green status indicator bright
    green. By the way I'll take into consideration your experience. Thank you.
    Hakan Gemici, Apr 8, 2008
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