flashing brake and yellow lights for electronic parking brake

[JImBushMiller]

all of a sudden the red parking brake started flashing and a yellow light next to it started flashing on my 2018 Edge Titanium.  I can still engage and disengage.  I cannot get it to reset and stop dining but can drive it becasue the parking brake is disengaged.

 

How do I get it to reset becasue it seems have nothing wrong with it.

 

Thanks

[Haz]

Welcome to the Forum, @JImBushMiller!

 

Information from the 2018 Edge Workshop Manual...

 

Placing your device cursor over underlined acronyms may yield full-words pop-up descriptions of the acronyms.

 

Parking Brake and Actuation

The ABS module monitors and controls the parking brake system. The ABS module sends a reference voltage to the parking brake switch. When the driver moves the parking brake switch to the APPLY position, the reference voltage is sent back to the ABS module indicating an APPLY request. The ABS module then determines from sensor inputs if the parking brakes can be applied and sends voltage to the parking brake actuator motors. Once the parking brakes are fully applied, the ABS module sends a message to the IPC which illuminates the red BRAKE warning indicator. If the red BRAKE warning indicator is already illuminated due to a non-parking brake concern, the IPC displays PARK BRAKE APPLIED in the message center. When the driver moves the parking brake switch to the RELEASE position, the reference voltage is sent back to the ABS module indicating a RELEASE request. The ABS module then determines from sensor inputs and CAN messages (ignition state and brake pedal input) if the parking brakes can be released and sends voltage to the parking brake actuator motors. Once the parking brakes are fully released, the ABS module sends a message to the IPC which extinguishes the red BRAKE warning indicator. If the red BRAKE warning indicator cannot be extinguished due to a non-parking brake concern, the IPC displays PARK BRAKE RELEASED in the message center.

 

 

Red Brake Warning Indicator

 

 

The red BRAKE warning indicator notifies the driver of hydraulic brake concerns, some ABS concerns and parking brake application. When a hydraulic brake or ABS concern is present, the warning indicator illuminates solidly. After the parking brakes are fully applied, the red BRAKE warning indicator illuminates and remains illuminated as long as the ignition is set to ON. If the ignition is set to OFF after the parking brakes are applied or if the parking brakes are applied after the ignition is set to OFF the red BRAKE warning indicator illuminates for 10 seconds and is then extinguished.
 

 

Yellow Parking Brake Indicator

The yellow parking brake indicator is used in conjunction with the message center to notify the driver of parking brake system concerns. When a concern or DTC is present, the indicator illuminates and a message is displayed in the message center. The yellow parking brake indicator also illuminates when the parking brake system is in service mode.
 

 

Anti-Lock Brake System (ABS) Module

The ABS module is attached directly to the HCU and is the electronic control unit for the parking brake system. The ABS module monitors all switch inputs, sensor inputs and HS-CAN messages relating to the parking brake system, then directly controls the parking brake actuator motors. The ABS module also sets Diagnostic Trouble Codes (DTCs) in the event that a system or component failure should occur.
 

 

Parking Brake Actuator Motor

The parking brake actuator motors are single speed reversible electric motors mounted on the rear brake calipers. The motors can be serviced separately from the calipers.

 

 

Parking Brake Switch

The parking brake switch is a 3 position switch with 2 sets of 3 internal micro switches, one set is for APPLY and one set is for RELEASE. The 3 switch positions are APPLY (pulled up), NEUTRAL (at rest or static) and RELEASE (pushed down).

 

Whenever the parking brake switch is disconnected and then reconnected, a DTC sets in the ABS module and the ABS module disables the parking brake system. To restore parking brake system functionality and to clear the DTC , the parking brake switch must be moved through all 3 positions twice within 5 seconds pausing for approximately one-half second when the switch is in the NEUTRAL position between each apply and release.

 

 

 

 

As the above Symptom Chart directs, you should have your Edge's electronic modules scanned to see if any Diagnostic Trouble Codes (DTCs) are revealed, especially in the vehicle's ABS module.

 

If you don't have access to a diagnostic scan tool, contact a local national-brand auto parts store to determine if personnel there can scan the Edge for you.

 

If the scan tool reveals any DTCs, please make note of them or take a smartphone photo of the scanner screen showing the results.

 

Depending upon what triggered the DTC, clearing DTCs after documenting all that exist, may take care of the problem.

 

If not, then report the DTC code(s) here for further guidance.

 

Are you a do-it-yourself Edge owner who will try repairing this issue yourself, or might you prefer to have a dealership or independent mechanic address this issue for you? 

 

Good luck!

 

Edited August 23 by Haz

[Summers22]

Need some thoughts, got the dreaded warning messages on the dash about parking brake malfunction after driving in the rain today. So far I have a DTC, C2007. That's the right actuator. I attempted to put the vehicle into service mode, but that is not working. It is not the body to motor harness as it works on the driver side actuator and it's not the passenger actuator itself, as I removed it and tested it on the driver side and the actuator cycled perfectly. I assume this means there is a break in a wire somewhere between the driver and the passenger actuator. I will do some more digging tomorrow, but a couple jumper wires may be made and installed so I can get it back on the road. Hard to see how the wiring is routed as it looks to go up into the body on both sides, so I may remove the spare and see what I can see. Anyone have this dtc and the harness and actuator are fine?