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05 Civic ABS light

  • 14-10-2017 11:04pm
    #1
    Dempsey
    Registered Users, Registered Users 2 Posts: 20,553 ✭✭✭✭


    My ABS Light started coming on intermittently in the last few months, its now on most of the time with the odd trip where it stays off.

    OBDII/Torque Pro wont pick up the ABS DTC's

    Tried putting a jumper on OBDII Pin 9 & 4 to short the SCS circuit to Ground but I'm not getting a DTC via the ABS light.

    Fairly stumped here trying to diagnose the issue. Any feedback would be appreciated.


Comments

  • #2
    scannerd
    Registered Users, Registered Users 2 Posts: 236 ✭✭scannerd


    You need a higher level scanner to get the right data, would be guessing its one of the wheel speed sensors. If you where near me i could read them but i'm in kildare.


  • #3
    Cee-Jay-Cee
    Registered Users, Registered Users 2 Posts: 12,235 ✭✭✭✭Cee-Jay-Cee


    Have you confirmed that when the light is on that the ABS doesn't actually work?


  • #4
    Dempsey
    Registered Users, Registered Users 2 Posts: 20,553 ✭✭✭✭Dempsey


    In the end I got a loan of a tool of a friend, DTC 11 Wheel Sensor, Right Front (Open/Short to Body Ground/Short to Power)

    I followed the service manual for the DTC

    Disconnect ABS Control Unit Connector.
    Start Engine
    Check Voltage between Wheel Sensor(+) & Body Ground (No Battery Voltage)
    Turn Igition off
    Check Continuity between Wheel Sensor(+) & Body Ground (No Continuity)
    Check Resistance between Wheel Sensor(+) & Wheel Sensor(+-) ( ~2000 Ohms, within Specification)

    Conclusion: Check for a loose ABS Control Unit Connector or substitute known good ABS Modulator and recheck

    The connection doesnt look loose and a dont have a known good ABS Modulator knocking about. Anyone have any advice that doesnt cost me a new abs modulator?


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