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2009 Ford Escape Hybrid won't start after charging 12 volt and Hybrid...

597 Views 13 Replies 2 Participants Last post by  dwightbresemann, 
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I took the Hybrid battery out of the escape for 3 months while I researched on how to charge the Hybrid battery.
So the 12volt Battery died in that time and also the Hybrid battery sat for 3 months but only lost charge down to 260 volts.
I finally got the Hybrid battery charged to 340 volts and put an over night charge on the 12 volt. The 12 volts reads 12.9 volts and seems healthy.
So u put back the Hybrid and 12 volt and the escape won't start.
Any suggestions what might be the problem?
I also cleared all the ODB2 codes.

Please help.

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dwightbresemann
Run the KOEO self demand test with the scanner. Hybrids crank using the HV battery and do not have a starter motor. Can your scanner read codes and data in the battery management computer?
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dwightbresemann
May sure the service plug is fully engaged.

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dwightbresemann said:
May sure the service plug is fully engaged.

View attachment 3592
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The Service plug is fully engaged and the lights dash all comes on. I had a few codes regarding PCM from the ODB2 and I cleared all the codes. The Hybrid won't start or come on after trying to start the Hybrid/escape. Do I need the Ford system software packet scanner.
Back end story... Hybrid started to died and Escape won't drive until a charge by mechanic forced the voltage in the Battery pack. It started no problem after finished. So I decided to hook my own charging unit but it sat for 3 months before I finished my mods. Now it won't start.


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dwightbresemann
I know the charger you are using. A simple LED driver. You do not need a special Ford scanner. But you do need an enhanced scanner with bi-direction controls.

Dash lights are powered by the 12 volt battery.

Engine cranking is the powered by the HV battery.

A simple scanner will not "clear" all codes, but only codes in the PCM. You need an enhanced scanner to clear all codes.

Disconnecting the 12 volt or HV battery will not clear all codes.

You need an enhanced scanner. Without it, you are going to waste time and money.

You need at least 270 volts to crank the engine. 330 volts is a fully charged HV battery.
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dwightbresemann said:
I know the charger you are using. A simple LED driver. You do not need a special Ford scanner. But you do need an enhanced scanner with bi-direction controls.

Dash lights are powered by the 12 volt battery.

Engine cranking is the powered by the HV battery.

A simple scanner will not "clear" all codes, but only codes in the PCM. You need an enhanced scanner to clear all codes.

Disconnecting the 12 volt or HV battery will not clear all codes.

You need an enhanced scanner. Without it, you are going to waste time and money.

You need at least 270 volts to crank the engine. 330 volts is a fully charged HV battery.
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Do you know if the Bluetooth Forscan app is good enough? I have an android phone.

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dwightbresemann
A Bluetooth connection to Forscan would work fine. Use the interface Forscan recommends, and you will be able to read all modules and clear all codes.
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dwightbresemann said:
A Bluetooth connection to Forscan would work fine. Use the interface Forscan recommends, and you will be able to read all modules and clear all codes.
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Do you recommend any apps In play store? Such as Ford sys scan pro? Or can Fordsys scan lite work?
Are these apps ok to uses?

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dwightbresemann
There I can't help. I'm a PC type and never had much use for apps. Sorry.
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dwightbresemann said:
There I can't help. I'm a PC type and never had much use for apps. Sorry.
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I bought this Odb2 usb connector and I'm going to download the software from

Download FORScan

and gong to reset the ford Escape. Any tips and things I should look out for?
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dwightbresemann
Yes, that interface will work. You will have to flip the switch to scan all modules. One side of the does medium speed CAN buss and the other high speed CAN buss.
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dwightbresemann
Also, check both fuel inertia switches, both front and rear.

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I got Forscan Pro on playstore and tried to clear all DTC. After I trashed all the DTC these kept staying in the system. I couldn't delete these issues and the escape still won't start. What else can be the problem?
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dwightbresemann
Check all fuses. Run KOEO self-demand test. What is the voltage of the HV battery?
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