2012 Edge Radio Battery Saver-Instrument Cluster Black

[openrage]

Picked up a 2012 Ford Edge Limited and have a weird issue. The Instrument Cluster does not power up, no lights, no speedo, no screens. The Radio will power up then immediately System Off to Save Battery. Climate controls are stuck on heat defrost so I assume those buttons are just soft buttons for the radio controls. I have replaced the battery it was weak, alternator tests fine. 

 

Since there are multiple systems affected I assume there may be a common component that may be causing it all. Any thoughts?

[Haz]

Welcome to the Forum @openrage!

 

From the 2012 Edge Workshop Manual...

 

The Body Control Module (BCM) uses the battery current sensor to monitor the battery state of charge. The battery current sensor is attached to the battery ground cable. With the ignition in RUN, ACC, or OFF, a Load Shed message is sent over the CAN when the BCM determines that the battery state of charge is below 40%, 45 minutes have elapsed, or 10% of the charge has been drained. This message turns off the audio system to save the remaining battery charge. Under this condition, SYS OFF TO SAVE BATT is displayed on the center stack infotainment display to notify the driver that battery protection actions are active. To clear the Load Shed state, start the vehicle.

 

Often, as you describe, when symptoms develop across several electronic systems, the root cause is low battery voltage, causing electronic modules to not operate properly and causing Diagnostic Trouble Codes (DTCs) to be set in them.

 

Using a Diagnostic Scan Tool to check for DTCs can be useful toward understanding what's affecting your Edge. The stuck climate controls may be the result of a DTC that, when cleared, will restore the climate control function.

 

You mention you have replaced the vehicle's weak battery and that the Load Shed state and messaging persists, which suggests the replacement battery also has a state of charge issue. 

 

If your replacement battery is not newly purchased -- or even if it is -- have the battery load-tested to ensure it isn't faulty or failing due to bad internal cells.

 

For the inoperative Instrument Panel Cluster (IPC), check fuse F11 (10 amp) in the BCM...

 

Normal Operation

The Instrument Panel Cluster (IPC) receives a hot at all times voltage from the Body Control Module (BCM) fuse 11 (10A). The IPC uses a run/start input messaged from the BCM over the High Speed Controller Area Network (HS-CAN) .

 

 

 

 

 

 

 

 

Please let us know the outcome of your further efforts.

 

Good luck!

Instrument Panel Cluster (IPC) - Power Distribution Wiring Diagram - 2012 Edge.pdf Body Control Module (BCM) - Fuse & Connector Locations - 2012 Edge.pdf Body Control Module (BCM) - Fuse Panel Location - 2012 Edge.pdf

[openrage]

Thanks for the info I will be able to pull codes tomorrow when USB dongle shows up for forscan and have the new battery load tested. I did check fuse 11 and has 12.7v ignition on, 14v+ engine running. I checked the Blue/Red wire at IPC and have 12.7v, ground tests good continuity to steering column. I did leave battery disconnected for a few hours, tried BMS reset but with no cluster I dont know if it did anything, also let it sit a few days untouched and off for the 8 hour reset.

 

Ill post what forscan shows once I can hook that up. Glad I am at least looking down the right path will know more when im back in town.

 

[openrage]

Ok battery tests good. I cleared the codes with no change to how it is acting. Codes below

 

B1214

B0021

B0029

U0155

B1193

B124D

U0140

B11E5

 

This is a former wreck so I assume the airbag ones are probably them missing