How to Put the P2 Brake Controller in Electric Over Hydraulic Mode

Updated 08/07/2018 | Published 08/06/2018

Question:

Wont work Customer waiting

asked by: Rick A

Expert Reply:

I will need a little more to go on. The P2 # 90885 has an electric over hydraulic mode that it must be in to properly communicate with an electric over hydraulic actuator. To get into this mode follow these instructions:

First, Enter Reverse Mode by pressing the Boost Button for 5 seconds while the brake pedal is pressed until [ .r ] displayed.

While continuing to have the brake pedal pressed, momentarily release the Boost Button for less than one second and then press and continue to hold the boost button down for an additional 5 seconds.

The display will now change from the boost value to a flashing [ E. ] or [ E.H ]. Depress and release
Boost repeatedly to select the desired mode.

Engage the Manual Knob to accept the mode, or wait 10 seconds for the function to automatically
time out and accept the mode. The mode selected will be stored in memory even when disconnected. When in Electric over Hydraulic mode, the display will change to [ .C ] and [ n.C ]. The upper-case “C” indicated E/H rather than the lower case “c” for Electric mode.

If you have done all of this and the actuator won't run when the manual override is used on the controller or there is no braking with the brake pedal when actually being towed then something else is amiss. I would need to know the brand and model of actuator being used to determine which troubleshooting steps to take.

expert reply by: Michael H