Subaru what is dccd

Each color dictates what status the controller is in open vs. On the LED light strip there is a blue light that goes on and off. The blue light on means that the controller is in auto mode, off is in manual mode.

For clusters there isn't an auto position since this feature didn't exist at the time. Open vs Closed: Green is open and Red is locked with a number of options in between. On the DCCDPro, the lights are a live read out so they will move as the controller is adjusting the center diff.

When the aftermarket controller is in auto mode, it does not output like the factory unit. On the factory STi, the cluster would not display any lower lights when in auto mode. Since lights are a live readout on the dash, it'll spend more time in the lights near lock when the controller is set at lock and more toward the lights near open when in open. Parking brake — When the parking brake is engaged, the center diff should be completely open allowing the clutch packs to slip so that the rear wheels can lock up without forcing the front wheels to do the same.

The unit can not be tested unless the ebrake or parking brake is down and the ebrake light on the cluster is off. Some cars require the car to be started to turn the parking brake off due to LEDs and alternator circuitry.

When in manual mode the light on the button should turn on. If for some reason the display shows that it is in manual but the light is not working, the light is mostly likely burned out. If the lights are bouncing in open or seems like it's acting "funny" - The G-Sensor needs to be calibrated for its position. Turn the key on while continuing to hold the button until the light on the button flashes seconds. The G-sensor is re-calibrated for it's current position in the car and should be good to go.

Brian Keene. Recent Posts See All. Diagnosis and Troubleshooting Tips for your Car. Post not marked as liked 3. Subaru Project Do's and Don'ts. Post not marked as liked 7. ABS in your Subaru. Post not marked as liked 1. Use tab to navigate through the menu items. The only time having a speed sensor in the transmission is a concern is when installing a newer transmission that came from a CAN equipped vehicle like a STi into a WRX.

In this case the transmission does not have the speed sensor or speed gear built into the transmission which means adding in a VSSPro with iWire Plug and Play Kit. The VSSPro replicates the speed signal by utilizing the wheel speed input from the ABS tone ring, converting the signal type, and sending it into the original speed sensor signal wire to communicate with the ECU and cluster.

Learn more about Vehicle Speed Sensors in your swap here. Still have questions about DCCD in your transmission swap? Contact us! Brian Keene. Recent Posts See All. Diagnosis and Troubleshooting Tips for your Car.

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