Question about 2007 Dodge Grand Caravan SXT Minivan

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ABS light staying on

How can I diagnose the problem that is causing the ABS light to stay on. I have a 2007 Grand Caravan

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  • myzette Sep 29, 2009

    So it is just a visual inspection required to see if the sensor is damaged or worn? Can these be changed easily with regular tools or does it take any specialized tools to do the repair.

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Your Grand caravan has several sensors that monitor the speed of the rotors/drums(depending on if you have four wheel disc brakes). These sensors feed information to the ABS module when in transit. If the sensors housing or sensor connections become faulty, or the sensor itself becomes damaged for some reason, this will send a fault signal to the on-board CPU, in return, causing the ABS light to illuminate. This light will continue to inform you of this malfunction until it is corrected. The sensors connections should be inspected for damage, if the housing and sensor connections are not worn or damaged, the sensors should be replaced. it is possible that only one sensor could be affected at this time. I recommend inspecting all just to be safe.

Posted on Sep 27, 2009

  • Michael Masters
    Michael Masters Sep 29, 2009

    You will use the visible inspection to look for worn connections that link the sensor to the power source and data transfer wires. This will be two single strands, linked together, running in unison to the sensors housing and back to the abs module. The ABS module has already confirmed that there is a fault at this point with one or more of the sensors on this vehicle. The visual inspection is needed to spot a more common issue, and this will be a separated connection, due to normal driving conditions overtime. These conditions can cause road debris to knock off connectors that link the sensor to its source. If the wires are connected correctly, and the sensor is aligned properly, the sensor(s) should be replaced. You can have a diagnostic test administered by your local auto parts store(autozone), or dealer to isolate the actual damaged sensor.

  • Michael Masters
    Michael Masters Sep 29, 2009

    The actual extraction and replacement of the affected sensor is quite difficult, and it will require a special tool as well. I recommend to allow a qualified tech to preform the replacement. proper alignment of the replacement sensors is vital to the accuracy of the new sensor. If it is not installed to specs, the car will experience limp mode or difficulties with the braking system.

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